How in the Heck Is a Rotation This Good Going To Miss the Postseason?

About two weeks ago, Kyle Kishimoto wrote about a shift in the AL West race as the Astros, who had been trailing the Mariners all year, pulled level in the division. Ordinarily, I wouldn’t revisit a topic so soon, especially because Kyle was himself issuing an update to his own previous appraisal of Seattle’s success. But between Kyle’s two posts, the Mariners blew a 10-game division lead to Houston. And in the two weeks since then, well at the risk of steering directly into stereotype, let’s take a look at a graph.
On the morning of August 5, when Kyle’s second piece ran, the Mariners were still actually slight favorites to win the AL West. In the ensuing 15 days, their division title odds dropped by 43.4 percentage points, to just 10.8%. Seattle’s odds of making the playoffs in any fashion are now just 16.4%, which is down 41.6 points. Only three other teams have seen their playoff odds move even 20 points in either direction in that time. One is the Padres. The other two are the Astros and Royals, two of the major beneficiaries of the Mariners’ ongoing slide. Read the rest of this entry »