2012 MLB Power Rankings for September 17th: Pittsburgh in Freefall

WhatIfSports.com utilizes its award-winning baseball simulation engine to present the most comprehensive and unbiased ranking possible of all 30 teams in baseball each Monday during the regular season. To come up with the rankings, using only their statistical performance to date this season, each team is simulated against every other team 100 times—50 at home and 50 at the opposing ballpark so that all five pitchers in the current rotation start ten times at each location.

(Note: This means that if a pitcher who was in the rotation was recently put on the DL, he will not be included in the simulations. This is true of position players as well, but an injury to one position player will usually have a lesser impact on the week-to-week results.)

Teams Ranked by Winning Percentage
(everyone plays everyone 100 times)

	Team	Change	Win Pct	RS/G	RA/G
1.	Texas Rangers	+3	60.4	4.9	3.9
2.	Cincinnati Reds	-	58.8	4.6	3.8
3.	Washington Nationals	-2	58.7	4.5	3.6
4.	New York Yankees	-1	57.4	4.8	4.1
5.	Los Angeles Angels	+2	56.9	4.7	4.1
6.	Tampa Bay Rays	-1	55.0	4.0	3.6
7.	Oakland Athletics	+2	54.2	4.0	3.6
8.	Detroit Tigers	-	53.4	4.5	4.1
9.	Milwaukee Brewers	+3	53.3	4.8	4.5
10.	Philadelphia Phillies	-	52.8	4.3	4.0
	Team	Change	Win Pct	RS/G	RA/G
11.	St. Louis Cardinals	-5	52.5	4.5	4.2
12.	Atlanta Braves	+1	52.2	4.1	3.9
13.	Baltimore Orioles	+2	51.9	4.2	4.0
14.	New York Mets	-	51.6	4.2	4.2
15.	San Francisco Giants	+2	51.1	4.1	4.0
16.	Arizona Diamondbacks	+2	51.0	4.2	4.1
17.	Chicago White Sox	-1	49.7	4.0	4.1
18.	Miami Marlins	+2	48.7	3.9	4.0
19.	Pittsburgh Pirates	-8	48.7	3.9	4.1
20.	Los Angeles Dodgers	-1	48.3	3.9	4.0
	Team	Change	Win Pct	RS/G	RA/G
21.	San Diego Padres	+1	48.2	3.9	4.2
22.	Kansas City Royals	+2	47.1	4.0	4.3
23.	Minnesota Twins	+2	46.4	4.2	4.7
24.	Boston Red Sox	+2	46.1	4.2	4.6
25.	Seattle Mariners	-2	45.9	3.4	3.7
26.	Toronto Blue Jays	-5	45.9	3.9	4.4
27.	Colorado Rockies	+1	41.6	4.6	5.3
28.	Cleveland Indians	-1	39.4	3.7	4.7
29.	Chicago Cubs	-	37.0	3.8	5.0
30.	Houston Astros	-	36.0	3.6	4.9