Posted by Andy on July 29, 2010
The Mets and Cardinals played 13 innings last night after playing 20 earlier this season. As of yesterday, there have been 276 team games in extra innings this year, so an average of about 9 per team. The Cardinals have been in 9 games, going 4-5, while the Mets (visible on the same link) have played in 12, going 4-8.
Incidentally, on that detailed standings page, you can also see that the teams with the best winning percentage in extra innings are the Royals (7-2), Astros (6-2), and Orioles (7-3) despite the fact that each team is in the bottom 7 in overall W-L% this year. Weird. Neil put it best in a chat window to me just now: "Further proof that winning close games is more luck than skill".