The Detroit Tigers clinched the American League Central title on Monday and locked up the No. 3 seed in the AL playoffs.
Detroit came back from a three-game deficit with 15 games remaining to make the playoffs in back-to-back seasons for the first time since 1935 and win a division title in consecutive seasons for the first time ever.
The Athletics took a similar route, but their comeback was more extreme. The A's were nine games under .500 on June 10 and sat in the AL West basement, nine games back of the Texas Rangers.
But Oakland was the hottest team in baseball to start the second half, winning 10 of their first 11 games after the All-Star break.
On July 25, the A's found themselves nine games over .500 and in a second-place tie with the Angels, five games behind the Rangers in the AL West.
Oakland continued to thrive in the second half, ripping off four streaks of at least six consecutive wins, including going undefeated in the last week of the season and defeating the Rangers in Game 162 to win the AL West.
The 88-74 Tigers host the 94-68 A's in Game 1 on Saturday night at Comerica Park and look to advance to their second consecutive AL Championship Series.
Here is a preview of that ALDS matchup: