If I were to bet, my money would be on the 17K+ as being statistically less probable throughout the recorded history of the game. There have been a few no-hitters and even a perfect game this year. The Blue Jays alone had two no-hitters going into the 8th and 9th inning this year and the White Socks got robbed by an ump for another perfect game. They have been prevalent this year, thats for sure.
There have actually been three perfect games in 2010 (if you include the one with the blown call, which was even better because he got 28 guys out in a row rather than 27), which is insane if you consider there were 19 previous to this year in baseball history. I also believe there have been two other no - hitters. Roy Halladay had one of the perfect games for the Phillies and he played for the Jays for years also. If I am not mistaken he came a couple outs away from one when he first came to the Jays, too.
