Last night, the Astros lost, and for the first time since May 15, they find their playoff odds below 50%. They have but four remaining games to re-claim playoff position, and, I’m sure you’ve had a good sense of their struggles. A 10-16 September has dropped their playoff odds from 97% to 44%. It’s dropped their division-winning odds from 88% to 3%. It took so long to get used to the idea of the Astros advancing to the postseason, and then it felt like a given for weeks. Now people are starting to think about big-picture perspectives, like how it’s still been a great season regardless of whether it ends in a few days. That’s true, but it’s also not what Astros fans thought they’d be having to consider at the end of September.
In a certain sense, these struggles have been almost team-wide. While the position players rank third in baseball in September WAR and third in September wRC+, they’re also 22nd in Win Probability Added, owing to some lousy timing. Astros starters rank 18th in WPA, neither good nor bad. The bullpen, meanwhile, ranks 27th in WPA. The Astros have had several issues, but a once-reliable bullpen has been a big one. And within that bullpen, one arm in particular has come apart at the worst possible time.