Yasiel Puig and the 20 Most Impressive All-Time Starts to an MLB Career
Yasiel Puig's Major League Baseball career is off to an impressive start, though this is hardly the first time we've seen immediate dominance from a young player. In past generations and even recently, rookies have enjoyed comparable success following their initial call-up.
Entering June 25, Puig is 20 games into MLB life. The sample isn't insignificant, but anything smaller would be.
Therefore, the individuals on this list—those who wowed us as fantastic freshmen—made it because they maintained a high quality of performance for at least as long as Puig has. For starting pitchers and relievers, we looked at career-opening stretches of at least five and 10 games, respectively.
Many of the truly timeless first-year performances began with awkward swings and shaky command. Even Ryan Braun and Ted Williams, who finished with fantastic numbers, dealt with dry spells during series early in their careers.
They failed to make the cut.
Still, the typical baseball fan shouldn't have much trouble recognizing these 20 names. They hogged headlines for weeks, months or even an entire season before finally cooling off.
All game logs and monthly splits provided by Baseball-Reference.com.
Impressive Rookies*
1 of 21Many of us conveniently forget that players like Fred Lynn, Buster Posey, Mike Trout and Fernando Valenzuela were rookie sensations in their second major league seasons.
Major League Baseball is weird like that, allowing youngsters to retain their prospect status if they don't see enough plate appearances, innings pitched or days on the active roster.
Of course, players who lucked out in such a way and had an entire offseason to fine-tune their bodies and game plans were not considered for this article. We're only interested in those who truly surged out of the starting gate.
20. Vince Coleman (St. Louis Cardinals, 1985)
2 of 21Stealing 21 bases as a rookie is a great accomplishment.
By doing so through only 20 career games, Vince Coleman earned inclusion on this prestigious list. He also proved to be an effective outfielder with two assists during those first few memorable weeks.
The 1985 St. Louis Cardinals actually limped to an 8-12 record despite his individual efforts.
However, Coleman remained in the leadoff spot throughout the season as they finished with 101 wins and the National League pennant.
1985 game log (April 18-May 9)
| Apr 18 | STL | MON | L,1-7 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | .333 | .500 | .333 | .833 | |
| Apr 19 | STL | PIT | W,5-4 | 5 | 1 | 4 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | .625 | .667 | 1.000 | 1.667 | |
| Apr 20 | STL | PIT | W,4-3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .417 | .462 | .667 | 1.128 | |
| Apr 21 | STL | PIT | W,6-0 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 3 | .467 | .556 | .667 | 1.222 | |
| Apr 22 | STL | NYM | L,6-7 | 5 | 1 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | .400 | .478 | .550 | 1.028 | |
| Apr 23 | STL | NYM | W,8-3 | 5 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | .360 | .429 | .480 | .909 | |
| Apr 24 | STL | NYM | W,5-1 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .345 | .406 | .448 | .855 | |
| Apr 25 | STL | @ | MON | L,2-4 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | .333 | .389 | .424 | .813 |
| Apr 26 | STL | @ | MON | L,5-10 | 5 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 2 | .324 | .390 | .432 | .823 |
| Apr 27 | STL | @ | MON | L,3-8 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .293 | .356 | .390 | .746 |
| Apr 28 | STL | @ | MON | L,3-5 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | .289 | .360 | .378 | .738 |
| Apr 30 | STL | LAD | W,6-1 | 5 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .300 | .364 | .400 | .764 | |
| May 1 | STL | LAD | L,1-2 | 5 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 0 | .291 | .350 | .418 | .768 | |
| May 3 | STL | SFG | W,8-1 | 5 | 2 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 2 | .305 | .369 | .441 | .810 | |
| May 4 | STL | SFG | W,6-4 | 5 | 2 | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 3 | .317 | .386 | .444 | .830 | |
| May 5 | STL | SFG | L,0-5 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .328 | .392 | .448 | .840 | |
| May 6 | STL | SDP | W,5-2 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | .324 | .385 | .437 | .821 | |
| May 7 | STL | SDP | L,2-12 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .303 | .361 | .408 | .769 | |
| May 8 | STL | @ | LAD | L,2-5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .300 | .356 | .400 | .756 |
| May 9 | STL | @ | LAD | W,5-4 | 5 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 1 | .294 | .348 | .400 | .748 |
19. Brad Ziegler (Oakland Athletics, 2008)
3 of 21Talk about an unlikely success story.
Brad Ziegler began his professional career at 23 years old, and prior to 2007 (his age-27 campaign), the right-hander was just a mediocre starter in the minors.
He rose quickly when he dropped his arm angle and learned to embrace relief work.
According to FanGraphs, Ziegler was reliant on an 85 mile-per-hour fastball as a rookie, throwing it 86.6 percent of the time. Yet his great location and tricky release point enabled an outstanding streak.
He opened his Oakland Athletics career with 39 consecutive innings of scoreless pitching before B.J. Upton ruined everybody's fun on August 14. An unsustainable BABIP had a lot to do with it, but so did Ziegler's remarkable ability to induce ground balls.
2008 game log (May 31-August 12)
| May 31 | OAK | @ | TEX | L,4-8 | 0.1 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 5 | 1 | 0 |
| Jun 3 | OAK | DET | W,5-4 | 1.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 27 | 4 | 1 | |
| Jun 4 | OAK | DET | W,10-2 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 11 | 2 | 1 | |
| Jun 7 | OAK | LAA | L,3-5 | 1.2 | 1 | 0 | 0 | 0 | 2 | 0 | 0.00 | 16 | 2 | 2 | |
| Jun 8 | OAK | LAA | W,7-3 | 1.2 | 0 | 0 | 0 | 1 | 0 | 0 | 0.00 | 18 | 2 | 1 | |
| Jun 12 | OAK | NYY | L,1-4 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 9 | 3 | 0 | |
| Jun 14 | OAK | @ | SFG | W,4-0 | 0.2 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 9 | 3 | 0 |
| Jun 18 | OAK | @ | ARI | L,1-11 | 1.0 | 2 | 0 | 0 | 0 | 0 | 0 | 0.00 | 12 | 2 | 2 |
| Jun 19 | OAK | @ | ARI | L,1-2 | 1.1 | 1 | 0 | 0 | 1 | 0 | 0 | 0.00 | 14 | 3 | 1 |
| Jun 20 | OAK | FLA | W,7-6 | 0.1 | 2 | 0 | 0 | 0 | 0 | 0 | 0.00 | 14 | 2 | 1 | |
| Jun 21 | OAK | FLA | L,4-6 | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 11 | 2 | 0 | |
| Jun 27 | OAK | SFG | W,4-1 | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 6 | 0 | 1 | |
| Jun 29 | OAK | SFG | L,1-11 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 9 | 1 | 1 | |
| Jul 1 | OAK | @ | LAA | L,3-5 | 2.0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 24 | 3 | 0 |
| Jul 4 | OAK | @ | CHW | W,7-1 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 13 | 1 | 1 |
| Jul 7 | OAK | SEA | W,4-3 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 21 | 4 | 1 | |
| Jul 10 | OAK | SEA | W,3-2 | 1.0 | 1 | 0 | 0 | 2 | 0 | 0 | 0.00 | 22 | 3 | 1 | |
| Jul 12 | OAK | LAA | L,1-4 | 1.1 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 13 | 1 | 2 | |
| Jul 13 | OAK | LAA | L,3-4 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 1 | 1 | 0 | |
| Jul 19 | OAK | @ | NYY | L,3-4 | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 0.00 | 18 | 2 | 0 |
| Jul 22 | OAK | @ | TBR | W,8-1 | 2.0 | 2 | 0 | 0 | 1 | 0 | 0 | 0.00 | 37 | 6 | 2 |
| Jul 25 | OAK | TEX | L,6-14 | 1.1 | 1 | 0 | 0 | 0 | 0 | 0 | 0.00 | 13 | 2 | 3 | |
| Jul 27 | OAK | TEX | W,6-5 | 2.0 | 2 | 0 | 0 | 0 | 3 | 0 | 0.00 | 27 | 3 | 1 | |
| Jul 30 | OAK | KCR | L,3-4 | 3.0 | 2 | 0 | 0 | 1 | 1 | 0 | 0.00 | 31 | 7 | 0 | |
| Aug 1 | OAK | @ | BOS | L,1-2 | 2.0 | 1 | 0 | 0 | 1 | 1 | 0 | 0.00 | 29 | 3 | 3 |
| Aug 5 | OAK | @ | TOR | L,3-4 | 2.0 | 0 | 0 | 0 | 1 | 0 | 0 | 0.00 | 20 | 5 | 0 |
| Aug 7 | OAK | @ | TOR | L,4-6 | 1.0 | 2 | 0 | 0 | 0 | 0 | 0 | 0.00 | 19 | 3 | 2 |
| Aug 8 | OAK | @ | DET | W,4-2 | 2.0 | 0 | 0 | 0 | 2 | 2 | 0 | 0.00 | 30 | 2 | 1 |
| Aug 12 | OAK | TBR | W,2-1 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 11 | 2 | 2 |
18. Terry Pendleton (St. Louis Cardinals, 1984)
4 of 21Terry Pendleton was called up for the St. Louis Cardinals the year before Vince Coleman, seizing the third baseman's job and a spot in the middle of the batting order.
The Cards waited until the second half of 1984 to recall the short switch-hitter from the minors, and he made them regret not doing it sooner.
Pendleton didn't hit for much power until later in his career, but he sure could put the bat on the ball. He struck out only three times through his first 65 MLB plate appearances. His batting average didn't drop below .400 until the middle of August.
1984 game log (July 18-August 7)
| Jul 18 | STL | SFG | W,8-4 | 6 | 1 | 3 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | .600 | .667 | .600 | 1.267 | |
| Jul 19 | STL | LAD | L,0-10 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .556 | .625 | 1.181 | |
| Jul 20 | STL | LAD | W,10-5 | 4 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | .500 | .538 | .667 | 1.205 | |
| Jul 21 | STL | LAD | L,1-3 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .438 | .471 | .563 | 1.033 | |
| Jul 22 | STL | LAD | W,7-6 | 4 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | .450 | .476 | .550 | 1.026 | |
| Jul 23 | STL | @ | NYM | L,3-4 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .400 | .423 | .480 | .903 |
| Jul 24 | STL | @ | NYM | L,8-9 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .414 | .452 | .483 | .934 |
| Jul 25 | STL | @ | NYM | L,3-9 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .375 | .429 | .438 | .866 |
| Jul 27 | STL | @ | PIT | W,3-2 | 5 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .432 | .475 | .486 | .961 |
| Jul 28 | STL | @ | PIT | W,5-1 | 4 | 1 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | .463 | .500 | .512 | 1.012 |
| Jul 29 | STL | @ | PIT | W,4-3 | 4 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | .444 | .479 | .489 | .968 |
| Jul 30 | STL | NYM | W,3-1 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | .438 | .462 | .479 | .941 | |
| Jul 31 | STL | NYM | W,6-3 | 4 | 2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .462 | .482 | .500 | .982 | |
| Aug 1 | STL | NYM | W,11-2 | 5 | 2 | 3 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | .482 | .508 | .536 | 1.044 | |
| Aug 2 | STL | PHI | L,2-3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .450 | .477 | .500 | .977 | |
| Aug 3 | STL | PHI | W,4-3 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .438 | .464 | .484 | .948 | |
| Aug 4 | STL | PHI | W,3-2 | 4 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | .456 | .479 | .500 | .979 | |
| Aug 5 | STL | PHI | L,3-6 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .444 | .468 | .486 | .954 | |
| Aug 6 | STL | PIT | L,2-3 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | .427 | .444 | .467 | .911 | |
| Aug 7 | STL | PIT | W,2-1 | 4 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | .430 | .447 | .494 | .941 |
17. Austin Jackson (Detroit Tigers, 2010)
5 of 21If 2010 Rookie of the Year voters hadn't been so mesmerized by Neftali Feliz's saves total, the hardware would have gone to Austin Jackson.
He set an embarrassing major league record by striking out in 19 straight games to begin his career, but Jackson did reach base in 29 of his first 30 contests.
By the second week of May, the 23-year-old ranked atop the American League in batting and had Ben Shpigel of The New York Times writing a feature about him.
Defense was another one of Jackson's strengths. He possessed game-changing range in center field.
2010 game log (April 5-May 9)
| Apr 5 | DET | @ | KCR | W,8-4 | 5 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | .200 | .200 | .400 | .600 |
| Apr 7 | DET | @ | KCR | L,2-3 | 5 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | .300 | .300 | .600 | .900 |
| Apr 8 | DET | @ | KCR | W,7-3 | 5 | 1 | 2 | 2 | 0 | 0 | 1 | 0 | 1 | 0 | .333 | .333 | .667 | 1.000 |
| Apr 9 | DET | CLE | W,5-2 | 4 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | .333 | .368 | .611 | .980 | |
| Apr 10 | DET | CLE | W,4-2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .261 | .292 | .478 | .770 | |
| Apr 11 | DET | CLE | W,9-8 | 6 | 1 | 2 | 0 | 0 | 0 | 0 | 2 | 1 | 1 | .296 | .367 | .481 | .848 | |
| Apr 12 | DET | KCR | L,5-10 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .313 | .371 | .469 | .840 | |
| Apr 13 | DET | KCR | W,6-5 | 5 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | .306 | .375 | .472 | .847 | |
| Apr 16 | DET | @ | SEA | L,3-11 | 4 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .325 | .386 | .475 | .861 |
| Apr 17 | DET | @ | SEA | L,2-4 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .311 | .367 | .444 | .812 |
| Apr 18 | DET | @ | SEA | W,4-2 | 5 | 1 | 3 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | .340 | .389 | .500 | .889 |
| Apr 19 | DET | @ | LAA | L,0-2 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .333 | .379 | .481 | .861 |
| Apr 20 | DET | @ | LAA | L,5-6 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 3 | 1 | .328 | .381 | .466 | .846 |
| Apr 21 | DET | @ | LAA | W,4-3 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 0 | .311 | .373 | .443 | .816 |
| Apr 22 | DET | @ | LAA | W,5-4 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .308 | .375 | .431 | .806 |
| Apr 23 | DET | @ | TEX | L,4-5 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | .300 | .364 | .414 | .778 |
| Apr 24 | DET | @ | TEX | W,8-4 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .307 | .366 | .413 | .779 |
| Apr 25 | DET | @ | TEX | L,4-8 | 4 | 1 | 2 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | .316 | .372 | .468 | .840 |
| Apr 26 | DET | @ | TEX | W,8-6 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | .325 | .385 | .470 | .854 |
| Apr 27 | DET | MIN | L,0-2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .314 | .379 | .453 | .832 | |
| Apr 28 | DET | MIN | W,11-6 | 5 | 3 | 2 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | .322 | .390 | .467 | .857 | |
| Apr 29 | DET | MIN | W,3-0 | 4 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | .330 | .394 | .468 | .862 | |
| Apr 30 | DET | LAA | W,10-6 | 5 | 2 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .364 | .422 | .495 | .917 | |
| May 1 | DET | LAA | W,3-2 | 5 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .356 | .412 | .481 | .893 | |
| May 2 | DET | LAA | W,5-1 | 5 | 0 | 3 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | .367 | .420 | .495 | .916 | |
| May 3 | DET | @ | MIN | L,4-10 | 5 | 1 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | .377 | .427 | .526 | .954 |
| May 4 | DET | @ | MIN | L,3-4 | 4 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .376 | .430 | .521 | .951 |
| May 5 | DET | @ | MIN | L,4-5 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .369 | .421 | .508 | .929 |
| May 8 | DET | @ | CLE | W,6-4 | 5 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | .370 | .420 | .512 | .932 |
| May 9 | DET | @ | CLE | L,4-7 | 5 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .371 | .420 | .508 | .927 |
16. Joba Chamberlain (New York Yankees, 2007)
6 of 21Joba Chamberlain has already faded from greatness to mediocrity, but we shouldn't forget how truly dominant he was initially.
Four months into his first professional season, the pudgy right-hander was promoted to the New York Yankees. It took only a handful of appearances for him to progress from a mop-up role to Mariano Rivera's setup man.
Tyler Kepner of The New York Times introduced us to the "Joba Rules," which instructed manager Joe Torre to keep him well-rested.
Chamberlain made only one mistake during the 2007 regular season that Mike Lowell deposited over the Green Monster at Fenway Park.
In the ensuing playoffs, he famously struggled due to factors that were beyond his control, per John C. Kuehner of The Plain Dealer.
2007 game log (August 7-September 30)
| Aug 7 | NYY | @ | TOR | W,9-2 | 2.0 | 1 | 0 | 0 | 2 | 2 | 0 | 0.00 | 33 | 2 | 2 |
| Aug 10 | NYY | @ | CLE | W,6-1 | 2.0 | 0 | 0 | 0 | 0 | 4 | 0 | 0.00 | 21 | 1 | 1 |
| Aug 13 | NYY | BAL | W,7-6 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 14 | 1 | 0 | |
| Aug 17 | NYY | DET | W,6-1 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0.00 | 10 | 0 | 3 | |
| Aug 19 | NYY | DET | W,9-3 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 9 | 0 | 1 | |
| Aug 22 | NYY | @ | LAA | W,8-2 | 1.0 | 1 | 0 | 0 | 0 | 3 | 0 | 0.00 | 15 | 1 | 0 |
| Aug 24 | NYY | @ | DET | L,6-9 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 10 | 0 | 2 |
| Aug 28 | NYY | BOS | W,5-3 | 1.0 | 1 | 0 | 0 | 1 | 2 | 0 | 0.00 | 19 | 0 | 2 | |
| Aug 30 | NYY | BOS | W,5-0 | 1.1 | 1 | 0 | 0 | 1 | 0 | 0 | 0.00 | 18 | 2 | 3 | |
| Sep 5 | NYY | SEA | W,10-2 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.00 | 11 | 1 | 2 | |
| Sep 7 | NYY | @ | KCR | W,3-2 | 2.0 | 2 | 0 | 0 | 0 | 1 | 0 | 0.00 | 29 | 2 | 5 |
| Sep 12 | NYY | @ | TOR | W,4-1 | 1.2 | 1 | 1 | 0 | 1 | 2 | 0 | 0.00 | 35 | 4 | 1 |
| Sep 16 | NYY | @ | BOS | W,4-3 | 2.0 | 2 | 1 | 1 | 0 | 3 | 1 | 0.50 | 30 | 2 | 3 |
| Sep 19 | NYY | BAL | W,2-1 | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 | 0.49 | 4 | 0 | 0 | |
| Sep 21 | NYY | TOR | L,4-5 | 2.0 | 0 | 0 | 0 | 1 | 4 | 0 | 0.44 | 30 | 0 | 2 | |
| Sep 23 | NYY | TOR | W,7-5 | 1.1 | 0 | 0 | 0 | 0 | 3 | 0 | 0.42 | 16 | 1 | 0 | |
| Sep 26 | NYY | @ | TBD | W,12-4 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0.40 | 14 | 1 | 2 |
| Sep 27 | NYY | @ | TBD | W,3-1 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 0.38 | 20 | 0 | 2 |
| Sep 30 | NYY | @ | BAL | W,10-4 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.38 | 5 | 1 | 0 |
| NYY | 24.0 | 12 | 2 | 1 | 6 | 34 | 1 | 0.38 |
15. Dennis Eckersley (Cleveland Indians, 1975)
7 of 21Dennis Eckersley uncharacteristically demonstrated poor command during his first summer in the big leagues.
He issued 13 walks through April and May alone. Keep in mind, this Hall of Famer would later pitch eight separate seasons in which he finished with lower totals.
However, the Cleveland Indians didn't waste much time moving Eckersley to the starting rotation so that they could reap more benefits from his overpowering repertoire.
The 20-year-old eventually had to suck up several rough outings, but the beginning of that campaign was magical.
1975 game log (April 12-May 31)
| Apr 12 | CLE | @ | MIL | L,5-6 | 1.2 | 1 | 0 | 0 | 1 | 1 | 0 | 0.00 | 1 | 3 | |
| Apr 20 | CLE | MIL | W,7-4 | 0.1 | 1 | 0 | 0 | 1 | 0 | 0 | 0.00 | 1 | 0 | ||
| Apr 28 | CLE | @ | NYY | L,1-6 | 2.0 | 3 | 1 | 0 | 0 | 0 | 0 | 0.00 | 1 | 4 | |
| May 1 | CLE | @ | BOS | L,6-7 | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 0.00 | 0 | 1 | |
| May 2 | CLE | BAL | W,4-3 | 2.1 | 3 | 0 | 0 | 2 | 2 | 0 | 0.00 | 2 | 2 | ||
| May 4 | CLE | BAL | W,4-3 | 2.0 | 1 | 0 | 0 | 2 | 2 | 0 | 0.00 | 1 | 3 | ||
| May 5 | CLE | BOS | L,5-7 | 1.2 | 0 | 0 | 0 | 1 | 2 | 0 | 0.00 | 3 | 1 | ||
| May 13 | CLE | @ | MIN | W,3-2 | 3.0 | 0 | 0 | 0 | 1 | 4 | 0 | 0.00 | 1 | 4 | |
| May 16 | CLE | @ | CHW | L,2-3 | 0.0 | 0 | 0 | 0 | 1 | 0 | 0 | 0.00 | 0 | 0 | |
| May 18 | CLE | @ | CHW | W,7-6 | 0.1 | 0 | 0 | 0 | 0 | 1 | 0 | 0.00 | 0 | 0 | |
| May 25 | CLE | OAK | W,6-0 | 9.0 | 3 | 0 | 0 | 2 | 6 | 0 | 0.00 | 8 | 14 | 85 | |
| May 31 | CLE | @ | OAK | W,4-1 | 9.0 | 6 | 1 | 1 | 1 | 5 | 0 | 0.28 | 5 | 17 | 75 |
14. Brett Lawrie (Toronto Blue Jays, 2011)
8 of 21If not for a rash of injuries, perhaps Brett Lawrie would have already developed into an All-Star.
Let's rewind to 2011, when Lawrie was the American League's fifth-youngest player. During a four-week stretch, he was arguably its most unstoppable individual, too.
Earlier that season, in the notoriously hitter-friendly Pacific Coast League, Lawrie batted .353/.415/.661 with 18 home runs in 69 games.
2011 game log (August 5-September 1)
| Aug 5 | TOR | @ | BAL | W,5-4 | 4 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | .500 | .500 | .500 | 1.000 |
| Aug 6 | TOR | @ | BAL | L,2-6 | 3 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .429 | .429 | .429 | .857 |
| Aug 7 | TOR | @ | BAL | W,7-2 | 4 | 2 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | .455 | .455 | .727 | 1.182 |
| Aug 9 | TOR | OAK | L,1-4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .357 | .357 | .571 | .929 | |
| Aug 10 | TOR | OAK | W,8-4 | 4 | 2 | 2 | 1 | 0 | 1 | 4 | 0 | 1 | 0 | .389 | .389 | .778 | 1.167 | |
| Aug 11 | TOR | OAK | L,3-10 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .333 | .364 | .667 | 1.030 | |
| Aug 12 | TOR | LAA | L,1-5 | 3 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | .348 | .400 | .696 | 1.096 | |
| Aug 13 | TOR | LAA | W,11-2 | 4 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | .370 | .414 | .741 | 1.155 | |
| Aug 14 | TOR | LAA | W,5-4 | 4 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | .355 | .394 | .710 | 1.104 | |
| Aug 15 | TOR | @ | SEA | L,5-6 | 4 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | .343 | .378 | .743 | 1.121 |
| Aug 16 | TOR | @ | SEA | W,13-7 | 5 | 2 | 3 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | .385 | .429 | .744 | 1.172 |
| Aug 17 | TOR | @ | SEA | W,5-1 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .357 | .413 | .690 | 1.104 |
| Aug 18 | TOR | @ | OAK | W,7-0 | 4 | 1 | 2 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | .378 | .440 | .711 | 1.151 |
| Aug 19 | TOR | @ | OAK | L,0-2 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .367 | .426 | .673 | 1.099 |
| Aug 20 | TOR | @ | OAK | L,1-5 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .346 | .404 | .635 | 1.038 |
| Aug 21 | TOR | @ | OAK | W,1-0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .327 | .383 | .600 | .983 |
| Aug 23 | TOR | KCR | L,4-6 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .310 | .365 | .569 | .934 | |
| Aug 24 | TOR | KCR | W,4-3 | 3 | 1 | 2 | 0 | 1 | 1 | 2 | 0 | 0 | 0 | .328 | .379 | .656 | 1.035 | |
| Aug 25 | TOR | KCR | L,6-9 | 4 | 1 | 2 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | .338 | .386 | .677 | 1.063 | |
| Aug 26 | TOR | TBR | L,1-6 | 4 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 2 | 0 | .333 | .378 | .696 | 1.074 | |
| Aug 27 | TOR | TBR | L,5-6 | 4 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | .329 | .372 | .699 | 1.070 | |
| Aug 28 | TOR | TBR | L,0-12 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .338 | .378 | .688 | 1.066 | |
| Aug 29 | TOR | TBR | W,7-3 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | .333 | .379 | .667 | 1.046 | |
| Aug 30 | TOR | @ | BAL | L,5-6 | 5 | 1 | 1 | 0 | 0 | 1 | 3 | 0 | 1 | 0 | .329 | .380 | .682 | 1.063 |
| Aug 31 | TOR | @ | BAL | W,13-0 | 5 | 0 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | .326 | .381 | .674 | 1.056 |
| Sep 1 | TOR | @ | BAL | W,8-6 | 5 | 2 | 3 | 1 | 0 | 1 | 2 | 0 | 0 | 1 | .340 | .392 | .713 | 1.105 |
13. Walter Johnson (Washington Senators, 1907)
9 of 21Walter Johnson—often referred to as "The Big Train"—is widely considered one of the best pitchers in the history of the sport. Fittingly, he started off strong at the ripe age of 19.
We do not have game logs or splits from the 1907 season, but there's plenty to like about his overall stats.
Of Johnson's 12 starts, 11 were complete games (two shutouts). He accounted for 2.7 WAR—the third-highest total on the Washington Senators, per Baseball-Reference.com—despite waiting until August 2 to debut.
With enough innings to qualify, he would have finished second in the American League in strikeout rate, fourth in earned run average and 10th in WHIP.
12. Jered Weaver (Los Angeles Angels, 2006)
10 of 21Believe it or not, there was a time when the Los Angeles Angels had a respectable bullpen. That's why, in 2006, they didn't feel pressure to stretch out Jered Weaver into the later innings.
He went 4-0 with a 1.37 ERA before the Angels optioned him back down to Triple-A. Then, he awkwardly replaced Jeff Weaver, his older brother, in the starting rotation when L.A. traded him to the St. Louis Cardinals.
The next nine starts were equally impressive. Weaver carried a 3.38 strikeout-to-walk ratio and .540 OPS against through August 24.
On that date, he finally suffered a loss despite six innings of one-run ball.
2006 game log (May 27-August 24)
| May 27 | LAA | BAL | W,10-1 | 7.0 | 3 | 0 | 0 | 1 | 5 | 0 | 0.00 | 97 | 8 | 11 | 75 | |
| Jun 2 | LAA | @ | CLE | W,10-3 | 6.1 | 4 | 2 | 2 | 2 | 8 | 0 | 1.35 | 99 | 4 | 10 | 63 |
| Jun 7 | LAA | @ | TBD | W,6-2 | 6.0 | 4 | 2 | 2 | 0 | 4 | 2 | 1.86 | 92 | 2 | 16 | 60 |
| Jun 13 | LAA | KCR | W,4-1 | 7.0 | 5 | 1 | 0 | 1 | 5 | 0 | 1.37 | 99 | 4 | 17 | 69 | |
| Jul 3 | LAA | @ | SEA | W,7-1 | 7.0 | 5 | 1 | 1 | 1 | 9 | 0 | 1.35 | 111 | 6 | 11 | 71 |
| Jul 8 | LAA | @ | OAK | W,6-4 | 7.0 | 2 | 0 | 0 | 2 | 5 | 0 | 1.12 | 95 | 6 | 11 | 76 |
| Jul 23 | LAA | @ | KCR | W,3-1 | 6.2 | 3 | 1 | 1 | 4 | 4 | 0 | 1.15 | 101 | 8 | 10 | 64 |
| Jul 29 | LAA | @ | BOS | L,6-7 | 6.2 | 7 | 3 | 3 | 2 | 4 | 0 | 1.51 | 98 | 5 | 17 | 50 |
| Aug 3 | LAA | TEX | L,6-7 | 6.0 | 8 | 3 | 3 | 1 | 3 | 0 | 1.81 | 106 | 12 | 11 | 46 | |
| Aug 8 | LAA | @ | CLE | W,5-4 | 5.2 | 6 | 4 | 4 | 2 | 3 | 1 | 2.20 | 102 | 2 | 17 | 42 |
| Aug 13 | LAA | @ | NYY | W,5-3 | 6.0 | 3 | 1 | 1 | 3 | 8 | 1 | 2.14 | 104 | 7 | 4 | 67 |
| Aug 18 | LAA | SEA | W,3-0 | 7.0 | 3 | 0 | 0 | 1 | 7 | 0 | 1.95 | 103 | 6 | 10 | 77 | |
| Aug 24 | LAA | BOS | L,1-2 | 6.0 | 4 | 1 | 1 | 1 | 6 | 1 | 1.92 | 107 | 3 | 12 | 65 |
11. Jason Heyward (Atlanta Braves, 2010)
11 of 21The consensus top prospect entering the 2010 season, Jason Heyward did not disappoint.
The video shows his first MLB plate appearance, which ended in a majestic home run. He would slug seven more of them before a groin injury interrupted the good vibes.
Heyward spoke with the MLB Network about his All-Star-worthy first half. Those first 26 contests were unforgettable—seldom do rookies demonstrate such patience at the plate upon being called up.
2010 game log (April 5-May 5)
| Apr 5 | ATL | CHC | W,16-5 | 5 | 2 | 2 | 0 | 0 | 1 | 4 | 0 | 1 | 0 | .400 | .400 | 1.000 | 1.400 | |
| Apr 7 | ATL | CHC | W,3-2 | 3 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 0 | .375 | .375 | .875 | 1.250 | |
| Apr 8 | ATL | CHC | L,0-2 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .250 | .250 | .583 | .833 | |
| Apr 9 | ATL | @ | SFG | L,4-5 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 0 | .176 | .222 | .412 | .634 |
| Apr 10 | ATL | @ | SFG | W,7-2 | 5 | 2 | 3 | 0 | 0 | 1 | 2 | 2 | 0 | 0 | .300 | .391 | .650 | 1.041 |
| Apr 11 | ATL | @ | SFG | L,3-6 | 4 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | .292 | .370 | .708 | 1.079 |
| Apr 12 | ATL | @ | SDP | L,2-17 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 1 | 0 | .269 | .387 | .654 | 1.041 |
| Apr 14 | ATL | @ | SDP | W,6-1 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | .267 | .371 | .600 | .971 |
| Apr 15 | ATL | @ | SDP | W,6-2 | 4 | 1 | 2 | 2 | 0 | 0 | 2 | 1 | 0 | 0 | .303 | .410 | .667 | 1.077 |
| Apr 16 | ATL | COL | W,9-5 | 5 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .316 | .409 | .632 | 1.041 | |
| Apr 17 | ATL | COL | L,0-4 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | .300 | .404 | .600 | 1.004 | |
| Apr 18 | ATL | COL | W,4-3 | 5 | 0 | 1 | 0 | 0 | 0 | 3 | 2 | 1 | 0 | .302 | .423 | .581 | 1.004 | |
| Apr 20 | ATL | PHI | W,4-3 | 4 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 1 | 0 | .298 | .411 | .617 | 1.028 | |
| Apr 21 | ATL | PHI | L,0-2 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .286 | .407 | .592 | .999 | |
| Apr 22 | ATL | PHI | L,3-8 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .269 | .397 | .558 | .955 | |
| Apr 23 | ATL | @ | NYM | L,2-5 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | .250 | .373 | .518 | .891 |
| Apr 24 | ATL | @ | NYM | L,1-3 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .254 | .380 | .508 | .889 |
| Apr 25 | ATL | @ | NYM | L,0-1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .246 | .370 | .492 | .862 |
| Apr 26 | ATL | @ | STL | L,3-4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .234 | .364 | .469 | .832 |
| Apr 27 | ATL | @ | STL | L,4-5 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | .224 | .358 | .448 | .806 |
| Apr 29 | ATL | @ | STL | L,4-10 | 4 | 1 | 2 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | .239 | .365 | .493 | .858 |
| Apr 30 | ATL | HOU | W,4-2 | 4 | 1 | 1 | 0 | 0 | 1 | 2 | 0 | 1 | 0 | .240 | .360 | .520 | .880 | |
| May 1 | ATL | HOU | W,10-1 | 5 | 1 | 2 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | .256 | .383 | .564 | .947 | |
| May 2 | ATL | HOU | W,7-1 | 4 | 2 | 2 | 1 | 0 | 0 | 3 | 0 | 0 | 0 | .272 | .388 | .580 | .968 | |
| May 4 | ATL | @ | WSN | L,3-6 | 4 | 1 | 2 | 0 | 0 | 1 | 1 | 2 | 0 | 0 | .289 | .412 | .627 | 1.038 |
| May 5 | ATL | @ | WSN | W,7-6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .286 | .408 | .619 | 1.027 |
10. Hideo Nomo (Los Angeles Dodgers, 1995)
12 of 21Hideo Nomo obliterated the National League through the first half of his rookie season, as the U.S. was slow to adjust to his quirky delivery.
The 26-year-old surrendered a single hit against the Barry Bonds-led San Francisco Giants in his MLB debut. He rolled into the All-Star break with an unbelievable .158 batting average against.
Only the Colorado Rockies—who averaged nearly seven runs per game at home that summer—tagged Nomo for more than three earned runs during that fiery 13-start stretch.
The Los Angeles Dodgers have relied on many outstanding pitchers in the past, but few of them ever enjoyed a month that rivaled Nomo's June 1995. Lasting more than 8.1 IP per outing (including two complete games), he maintained a 0.89 ERA and .426 OPS against with a 60/16 K/BB.
1995 game log (May 2-July 5)
| May 2 | LAD | @ | SFG | L,3-4 | 5.0 | 1 | 0 | 0 | 4 | 7 | 0 | 0.00 | 91 | 0 | 8 | 68 |
| May 7 | LAD | @ | COL | W,12-10 | 4.2 | 9 | 7 | 7 | 2 | 7 | 3 | 6.52 | 97 | 8 | 8 | 23 |
| May 12 | LAD | STL | W,8-4 | 4.0 | 0 | 3 | 1 | 7 | 5 | 0 | 5.27 | 94 | 5 | 4 | 52 | |
| May 17 | LAD | PIT | L,2-3 | 7.0 | 2 | 0 | 0 | 3 | 14 | 0 | 3.48 | 107 | 3 | 5 | 84 | |
| May 23 | LAD | @ | NYM | W,6-4 | 6.0 | 8 | 4 | 3 | 2 | 7 | 1 | 3.71 | 106 | 9 | 10 | 47 |
| May 28 | LAD | @ | MON | L,1-5 | 6.1 | 4 | 3 | 3 | 7 | 9 | 0 | 3.82 | 123 | 7 | 7 | 55 |
| Jun 2 | LAD | NYM | W,2-1 | 8.0 | 2 | 1 | 1 | 3 | 6 | 1 | 3.29 | 122 | 6 | 14 | 77 | |
| Jun 7 | LAD | MON | W,7-1 | 8.0 | 6 | 1 | 1 | 4 | 4 | 1 | 2.94 | 15 | 11 | 66 | ||
| Jun 14 | LAD | @ | PIT | W,8-5 | 8.0 | 6 | 3 | 2 | 2 | 16 | 0 | 2.84 | 125 | 4 | 10 | 74 |
| Jun 19 | LAD | @ | STL | W,5-2 | 8.1 | 3 | 2 | 1 | 3 | 8 | 0 | 2.62 | 108 | 9 | 12 | 76 |
| Jun 24 | LAD | SFG | W,7-0 | 9.0 | 2 | 0 | 0 | 3 | 13 | 0 | 2.30 | 128 | 4 | 12 | 93 | |
| Jun 29 | LAD | COL | W,3-0 | 9.0 | 6 | 0 | 0 | 1 | 13 | 0 | 2.05 | 112 | 9 | 11 | 87 | |
| Jul 5 | LAD | @ | ATL | L,1-4 | 7.0 | 2 | 1 | 1 | 5 | 10 | 0 | 1.99 | 120 | 6 | 10 | 74 |
9. Yasiel Puig (Los Angeles Dodgers, 2013)
13 of 21To fully understand why Puigmania is exploding, you really need to watch this phenom in action.
Thankfully, MLB.com already has a month's worth of interviews and highlights from his first 20 games in the majors.
These include an opposite-field grand slam, amazing outfield assists, a hustle double and taking Andre Ethier's ball.
Puig's unprecedented production (per SB Nation's Bill Parker) makes him a legitimate candidate for All-Star selection. If it continues further into the summer, he'll be a dark horse in the NL MVP race.
2013 game log (June 3-24)
| Jun 3 | LAD | SDP | W,2-1 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .500 | .500 | .500 | 1.000 | |
| Jun 4 | LAD | SDP | W,9-7 | 4 | 2 | 3 | 1 | 0 | 2 | 5 | 0 | 0 | 0 | .625 | .625 | 1.500 | 2.125 | |
| Jun 5 | LAD | SDP | L,2-6 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | .417 | .417 | 1.000 | 1.417 | |
| Jun 6 | LAD | ATL | W,5-0 | 4 | 1 | 2 | 0 | 0 | 1 | 4 | 0 | 1 | 0 | .438 | .438 | 1.063 | 1.500 | |
| Jun 7 | LAD | ATL | W,2-1 | 4 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | .421 | .450 | 1.105 | 1.555 | |
| Jun 8 | LAD | ATL | L,1-2 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .435 | .458 | 1.000 | 1.458 | |
| Jun 9 | LAD | ATL | L,1-8 | 5 | 0 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .464 | .483 | .964 | 1.447 | |
| Jun 10 | LAD | ARI | L,4-5 | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .500 | .515 | .938 | 1.453 | |
| Jun 11 | LAD | ARI | W,5-3 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .471 | .500 | .882 | 1.382 | |
| Jun 12 | LAD | ARI | L,6-8 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .486 | .514 | .886 | 1.399 | |
| Jun 14 | LAD | @ | PIT | L,0-3 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .487 | .512 | .846 | 1.358 |
| Jun 15 | LAD | @ | PIT | W,5-3 | 5 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .455 | .478 | .773 | 1.251 |
| Jun 16 | LAD | @ | PIT | L,3-6 | 4 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | .479 | .500 | .771 | 1.271 |
| Jun 19 (1) | LAD | @ | NYY | L,4-6 | 5 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | .472 | .491 | .755 | 1.246 |
| Jun 19 (2) | LAD | @ | NYY | W,6-0 | 5 | 3 | 2 | 0 | 0 | 1 | 1 | 0 | 1 | 1 | .474 | .500 | .789 | 1.289 |
| Jun 20 | LAD | @ | SDP | L,3-6 | 5 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 3 | 0 | .452 | .477 | .790 | 1.267 |
| Jun 21 | LAD | @ | SDP | L,2-5 | 4 | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | .455 | .478 | .773 | 1.251 |
| Jun 22 | LAD | @ | SDP | W,6-1 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | .435 | .473 | .739 | 1.212 |
| Jun 23 | LAD | @ | SDP | W,3-1 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | .425 | .462 | .712 | 1.174 |
| Jun 24 | LAD | SFG | W,3-1 | 4 | 1 | 3 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | .442 | .476 | .753 | 1.229 | |
| LAD | 82 | 14 | 34 | 3 | 0 | 7 | 14 | 3 | 17 | 2 | .442 | .476 | .753 | 1.229 |
8. Francisco Rodriguez (Anaheim Angels, 2002)
14 of 21Francisco Rodriguez impressed the Anaheim Angels so much in September 2002, they decided to keep him around for their playoff run.
His rookie season was unique in that it was mainly comprised of October experience.
Putting it all together, K-Rod was magnificent: 24.1 IP, 13 H, 4 ER, 7 BB, 41 K. That translates to a 1.48 ERA and 0.82 WHIP, all while appearing in the most important games of the entire season.
He even struck out the side during Game 7 of the World Series.
2002 regular season
| Sep 18 | ANA | @ | OAK | L,4-7 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 0.00 | 16 | 0 | 2 |
| Sep 19 | ANA | @ | OAK | L,3-5 | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 0.00 | 13 | 0 | 0 |
| Sep 21 | ANA | @ | SEA | L,4-6 | 0.2 | 0 | 0 | 0 | 0 | 2 | 0 | 0.00 | 8 | 0 | 0 |
| Sep 25 | ANA | @ | TEX | L,3-4 | 0.2 | 0 | 0 | 0 | 2 | 1 | 0 | 0.00 | 15 | 1 | 0 |
| Sep 27 | ANA | SEA | L,6-7 | 2.1 | 2 | 0 | 0 | 0 | 5 | 0 | 0.00 | 38 | 0 | 2 |
2002 postseason
| ALDS g2 | Oct 2 | ANA | @ | NYY | W,8-6 | 2.0 | 2 | 2 | 2 | 0 | 1 | 1 | 9.00 | 33 | 3 | 2 |
| ALDS g3 | Oct 4 | ANA | NYY | W,9-6 | 2.0 | 0 | 0 | 0 | 0 | 4 | 0 | 4.50 | 24 | 0 | 2 | |
| ALDS g4 | Oct 5 | ANA | NYY | W,9-5 | 1.2 | 0 | 0 | 0 | 2 | 3 | 0 | 3.18 | 30 | 1 | 1 | |
| ALCS g2 | Oct 9 | ANA | @ | MIN | W,6-3 | 1.2 | 1 | 0 | 0 | 1 | 3 | 0 | 2.45 | 27 | 0 | 2 |
| ALCS g3 | Oct 11 | ANA | MIN | W,2-1 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 2.16 | 11 | 0 | 1 | |
| ALCS g4 | Oct 12 | ANA | MIN | W,7-1 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 1.93 | 13 | 1 | 1 | |
| ALCS g5 | Oct 13 | ANA | MIN | W,13-5 | 0.2 | 0 | 0 | 0 | 1 | 0 | 0 | 1.80 | 17 | 1 | 1 | |
| WS g2 | Oct 20 | ANA | SFG | W,11-10 | 3.0 | 0 | 0 | 0 | 0 | 4 | 0 | 1.38 | 26 | 3 | 2 | |
| WS g4 | Oct 23 | ANA | @ | SFG | L,3-4 | 2.0 | 2 | 1 | 0 | 0 | 2 | 0 | 1.20 | 30 | 2 | 1 |
| WS g6 | Oct 26 | ANA | SFG | W,6-5 | 2.2 | 4 | 2 | 2 | 0 | 4 | 1 | 2.04 | 46 | 2 | 2 | |
| WS g7 | Oct 27 | ANA | SFG | W,4-1 | 1.0 | 0 | 0 | 0 | 1 | 3 | 0 | 1.93 | 16 | 0 | 0 |
7. Joe DiMaggio (New York Yankees, 1936)
15 of 21Before calming down in September, Joe DiMaggio was a legitimate MVP candidate.
He had legged out 15 triples in 112 games. Nearly as many walks as strikeouts, too.
Amazingly, DiMaggio did not miss a single inning during that stretch. Toward the end of it, he took on additional responsibility as the New York Yankees center fielder.
He was their second-best offensive player between May and September. That's high praise on a team that scored 1,065 runs with Lou Gehrig as it's No. 1 guy.
1936 monthly splits (May-August)
| May | 26 | 130 | 30 | 48 | 15 | 4 | 4 | 28 | 2 | 3 | 8 | .381 | .400 | .659 | 1.059 |
| June | 26 | 127 | 27 | 42 | 10 | 3 | 6 | 29 | 0 | 4 | 5 | .344 | .365 | .623 | .988 |
| July | 30 | 145 | 31 | 39 | 7 | 3 | 6 | 26 | 1 | 11 | 7 | .300 | .364 | .538 | .902 |
| August | 30 | 142 | 23 | 48 | 8 | 5 | 9 | 27 | 0 | 4 | 5 | .348 | .366 | .674 | 1.040 |
6. Willie McCovey (San Francisco Giants, 1959)
16 of 21Willie McCovey was a unanimous Rookie of the Year selection despite participating in only 52 games.
Since the award's inception in 1947, there have been 132 winners across the American and National Leagues. No other position player has ever received the honor without taking the field at least 100 times.
That obscure bit of trivia attests to how well McCovey performed for the 1959 San Francisco Giants.
His 1.085 OPS was 121 points better than that of all-time great teammate Willie Mays. His 22-game hitting streak, which spanned from August 17 until September 10, still stands as a rookie record for the franchise.
1959 monthly splits (July-September/October)
| July | 2 | 8 | 3 | 5 | 0 | 2 | 0 | 3 | 0 | 0 | 1 | .625 | .625 | 1.125 | 1.750 |
| August | 27 | 115 | 15 | 38 | 3 | 2 | 8 | 22 | 2 | 10 | 18 | .373 | .443 | .676 | 1.120 |
| Sept/Oct | 23 | 96 | 14 | 25 | 6 | 1 | 5 | 13 | 0 | 12 | 17 | .305 | .396 | .585 | .981 |
5. Tom Seaver (New York Mets, 1967)
17 of 21Finishing with a winning record on a 1967 New York Mets squad that averaged barely three runs per game says a lot about Tom Seaver.
He excelled from start to finish, but particularly through the schedule's first three months.
Of his 11 starts immediately before the All-Star break, eight of them were complete games. Seaver helped his own cause with the bat and sported a respectable .225/.354/.275 slash line by mid-summer.
Shea Stadium attendance typically spiked when Seaver took the mound, so even though the team wasn't competitive, he still dealt with pressure.
1967 game log (pre-All-Star break)
| Apr 13 | NYM | PIT | W,3-2 | 5.1 | 6 | 2 | 2 | 4 | 8 | 0 | 3.38 | 5 | 3 | 52 | |
| Apr 20 | NYM | CHC | W,6-1 | 7.1 | 8 | 1 | 1 | 0 | 5 | 0 | 2.13 | 8 | 8 | 63 | |
| Apr 25 | NYM | @ | CHC | W,2-1 | 10.0 | 4 | 1 | 0 | 1 | 5 | 0 | 1.19 | 13 | 12 | 86 |
| Apr 30 | NYM | @ | CIN | L,2-3 | 6.0 | 7 | 3 | 3 | 1 | 2 | 1 | 1.88 | 9 | 5 | 47 |
| May 5 | NYM | HOU | W,3-2 | 9.0 | 9 | 2 | 2 | 3 | 5 | 1 | 1.91 | 11 | 12 | 63 | |
| May 12 | NYM | @ | STL | L,5-7 | 3.0 | 6 | 2 | 2 | 3 | 0 | 0 | 2.21 | 4 | 2 | 36 |
| May 17 | NYM | @ | ATL | L,3-4 | 8.0 | 7 | 4 | 4 | 2 | 6 | 3 | 2.59 | 6 | 11 | 56 |
| May 22 | NYM | LAD | W,5-2 | 9.0 | 5 | 2 | 2 | 2 | 7 | 2 | 2.50 | 7 | 13 | 74 | |
| May 27 | NYM | ATL | W,4-3 | 6.0 | 6 | 3 | 2 | 1 | 2 | 0 | 2.54 | 7 | 7 | 51 | |
| Jun 1 | NYM | @ | HOU | L,1-4 | 8.0 | 8 | 4 | 3 | 4 | 4 | 1 | 2.64 | 8 | 10 | 52 |
| Jun 6 | NYM | @ | PIT | W,1-0 | 6.0 | 4 | 0 | 0 | 2 | 4 | 0 | 2.43 | 7 | 6 | 66 |
| Jun 13 | NYM | CIN | W,7-3 | 9.0 | 8 | 3 | 2 | 0 | 6 | 1 | 2.39 | 9 | 12 | 67 | |
| Jun 18 | NYM | CHC | L,3-4 | 9.0 | 8 | 4 | 4 | 3 | 3 | 1 | 2.54 | 13 | 10 | 55 | |
| Jun 24 | NYM | @ | ATL | W,9-1 | 9.0 | 5 | 1 | 1 | 2 | 2 | 1 | 2.41 | 9 | 15 | 73 |
| Jun 28 | NYM | PHI | L,5-6 | 6.1 | 10 | 5 | 5 | 2 | 3 | 1 | 2.68 | 6 | 9 | 34 | |
| Jul 3 | NYM | SFG | W,5-3 | 9.0 | 7 | 3 | 3 | 2 | 7 | 1 | 2.70 | 8 | 10 | 66 | |
| Jul 8 | NYM | ATL | W,3-2 | 9.0 | 6 | 2 | 2 | 3 | 7 | 1 | 2.65 | 8 | 10 | 71 |
4. Albert Pujols (St. Louis Cardinals, 2001)
18 of 21Albert Pujols led the 2001 St. Louis Cardinals to their first win of the season on April 6, which marked the beginning of a 23-game hitting streak. (Take that, Willie McCovey!) Perhaps most impressive is that he kept focused while rotating between four different defensive positions.
Clearly, July was his weakest month, but a league-average OBP and 11 XBH doesn't really count as a slump.
According to Baseball-Reference.com, Pujols cracked the top 10 in numerous National League categories: WAR, OPS, batting average, runs batted in and games played, to name a few. All that added up to a fourth-place finish in NL MVP voting.
The rookie campaign ended on a sour note, unfortunately, as he virtually disappeared during the ALDS.
2001 monthly splits (full season)
| April/March | 24 | 102 | 18 | 34 | 8 | 1 | 8 | 27 | 0 | 7 | 18 | .370 | .431 | .739 | 1.171 |
| May | 28 | 117 | 16 | 33 | 2 | 0 | 8 | 24 | 0 | 12 | 16 | .333 | .402 | .596 | .998 |
| June | 27 | 113 | 17 | 32 | 6 | 1 | 5 | 15 | 0 | 12 | 9 | .330 | .402 | .567 | .969 |
| July | 24 | 99 | 9 | 21 | 7 | 0 | 4 | 12 | 0 | 10 | 17 | .241 | .333 | .460 | .793 |
| August | 30 | 127 | 32 | 42 | 16 | 1 | 6 | 25 | 1 | 14 | 14 | .375 | .441 | .696 | 1.137 |
| Sept/Oct | 28 | 118 | 20 | 32 | 8 | 1 | 6 | 27 | 0 | 14 | 19 | .311 | .398 | .583 | .981 |
3. Dwight Gooden (New York Mets, 1984)
19 of 21In 1985, Dwight "Doc" Gooden enjoyed one of the best individual seasons in baseball history—but 1984 was awfully special, too.
His 11.4 K/9 established a major league record. Only Randy Johnson, Pedro Martinez, Nolan Ryan and Kerry Wood have surpassed it since.
Gooden bounced back quickly from his most brutal outings. Otherwise, we wouldn't have taken his entire season into consideration.
He saved his best for last with nine consecutive starts of at least nine strikeouts (105 K in 76.0 IP). That outstanding period included three complete-game shutouts and an inhuman .411 OPS against.
1984 monthly splits (full season)
| April/March | 1 | 1 | 3.10 | 4 | 0 | 20.1 | 17 | 12 | 7 | 0 | 10 | 26 | 1.328 | 11.5 |
| May | 3 | 2 | 4.06 | 5 | 1 | 31.0 | 22 | 14 | 14 | 1 | 15 | 47 | 1.194 | 13.6 |
| June | 2 | 2 | 1.99 | 6 | 1 | 45.1 | 31 | 11 | 10 | 1 | 15 | 40 | 1.015 | 7.9 |
| July | 3 | 1 | 2.58 | 5 | 0 | 38.1 | 31 | 12 | 11 | 2 | 17 | 49 | 1.252 | 11.5 |
| August | 4 | 2 | 3.29 | 6 | 2 | 41.0 | 36 | 16 | 15 | 3 | 6 | 52 | 1.024 | 11.4 |
| Sept/Oct | 4 | 1 | 1.29 | 5 | 3 | 42.0 | 24 | 7 | 6 | 0 | 10 | 62 | 0.810 | 13.3 |
2. Ichiro Suzuki (Seattle Mariners, 2001)
20 of 21Both Fred Lynn and Ichiro Suzuki were "rookies" entering their AL MVP campaigns, but only the Japanese free agent had zero previous major league experience.
Suzuki's consistency was ridiculous, with 30-plus hits in all six months.
Moreover, he proved to be a hyper-aggressive baserunner and excellent defensive outfielder. Never has such a wiry human being been so intimidating.
2001 monthly splits (full season)
| April/March | 25 | 120 | 17 | 39 | 3 | 1 | 2 | 11 | 5 | 4 | 8 | .336 | .358 | .431 | .789 |
| May | 27 | 132 | 29 | 47 | 11 | 4 | 0 | 14 | 12 | 3 | 6 | .379 | .409 | .532 | .941 |
| June | 25 | 122 | 24 | 38 | 4 | 1 | 1 | 11 | 10 | 6 | 4 | .330 | .361 | .409 | .769 |
| July | 27 | 121 | 18 | 30 | 6 | 2 | 3 | 12 | 9 | 5 | 11 | .268 | .308 | .438 | .746 |
| August | 28 | 130 | 20 | 51 | 7 | 0 | 0 | 17 | 6 | 6 | 12 | .429 | .461 | .487 | .948 |
| Sept/Oct | 25 | 113 | 19 | 37 | 3 | 0 | 2 | 4 | 14 | 6 | 12 | .349 | .384 | .434 | .818 |
1. Mark Fidrych (Detroit Tigers, 1976)
21 of 21It's difficult to imagine today's MLB fans swooning over a rookie player the same way we did for Mark Fidrych way back when.
Ironically, he had the shortest career of anybody on this list.
At 21 years old, Fidrych carried the Detroit Tigers. He had defeated 10 of the 11 other AL teams by July 20, the only exception being the Chicago White Sox, who he hadn't faced.
The Tigers spaced out his appearances in April and May, but then greedily began using him on three days' rest. That contributed to some uneven results as the season wore on.
Regardless, Fidrych had a knack for inducing ground balls and staying in games until the beautiful—though sometimes bitter—end. If WAR and strikeout-to-walk ratio mean anything (and they do), he might have been robbed of the 1976 AL Cy Young Award.
1976 game log (April 20-July 20)
| Apr 20 | DET | @ | OAK | L,5-6 | 0.0 | 1 | 0 | 0 | 0 | 0 | 0 | --- | 0 | 0 |
| May 5 | DET | MIN | L,2-8 | 1.0 | 2 | 0 | 0 | 0 | 1 | 0 | 0.00 | 1 | 1 | |
| May 15 | DET | CLE | W,2-1 | 9.0 | 2 | 1 | 1 | 1 | 5 | 0 | 0.90 | 16 | 6 | |
| May 25 | DET | @ | BOS | L,0-2 | 8.0 | 6 | 2 | 2 | 2 | 1 | 1 | 1.50 | 19 | 9 |
| May 31 | DET | MIL | W,5-4 | 11.0 | 11 | 4 | 4 | 4 | 8 | 1 | 2.17 | 16 | 7 | |
| Jun 5 | DET | @ | TEX | W,3-2 | 11.0 | 7 | 2 | 2 | 1 | 8 | 0 | 2.02 | 16 | 9 |
| Jun 11 | DET | CAL | W,4-3 | 9.0 | 9 | 3 | 1 | 0 | 4 | 0 | 1.84 | 13 | 9 | |
| Jun 16 | DET | KCR | W,4-3 | 9.0 | 5 | 3 | 2 | 2 | 2 | 0 | 1.86 | 14 | 9 | |
| Jun 20 | DET | @ | MIN | W,7-3 | 7.1 | 9 | 3 | 3 | 6 | 2 | 0 | 2.07 | 10 | 7 |
| Jun 24 | DET | @ | BOS | W,6-3 | 9.0 | 7 | 3 | 3 | 2 | 4 | 2 | 2.18 | 11 | 16 |
| Jun 28 | DET | NYY | W,5-1 | 9.0 | 7 | 1 | 1 | 0 | 2 | 1 | 2.05 | 14 | 11 | |
| Jul 3 | DET | BAL | W,4-0 | 9.0 | 4 | 0 | 0 | 3 | 4 | 0 | 1.85 | 14 | 9 | |
| Jul 9 | DET | KCR | L,0-1 | 9.0 | 9 | 1 | 1 | 1 | 2 | 0 | 1.78 | 14 | 7 | |
| Jul 16 | DET | OAK | W,1-0 | 11.0 | 7 | 0 | 0 | 4 | 6 | 0 | 1.60 | 15 | 8 | |
| Jul 20 | DET | @ | MIN | W,8-3 | 9.0 | 10 | 3 | 3 | 2 | 2 | 0 | 1.71 | 13 | 10 |

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