Posted by Neil Paine on November 10, 2010
Consider this a retro-bloop, since I didn't catch it the first time around, but here's a great piece at ESPN about the most valuable World Series HRs of all time by "series WPA".
What's series WPA, you ask? It's basically like regular WPA, except it also take into account the probability of winning the series (using a process similar to this). In essence, these home runs are the blasts that most swung the probability of winning the entire World Series, rather than just changing the probability of winning a given game.
As for the #1 HR? Well, it came in this famous game... but it might not be the exact homer you're thinking of.