Posted by Andy on April 25, 2011
Yesterday, Mariano Rivera blew a save in his second straight appearance. That was the 8th time in his career that he's done that. Here were the first 7:
Going back to 1997, Rivera's appeared in 908 games. He has 68 blown saves. (These numbers don't count yesterday's game.)
I can't figure out whether 8 back-to-back blown saves is about the expected number given his total number of appearances and blown saves. My gut feeling is that Rivera's poor performances tend to come in clusters and are not even close to randomly distributed through his career, but I can't seem to figure out how to go about figuring this out...who can help?