On Saturday, Philip Humber threw the 21st perfect game in Major League Baseball history. It’s an amazing feat, but it is also becoming a more common one.
In the World Series era (1903-present), a span of 110 seasons, there have been 19 perfect games. Of those, 12 (63.2%) have occurred in the last 32 years. And there have been six (31.6%) in the past 15 seasons alone.
This is bizarre, because if we look at the chart below, we see that the number of no-hitters that were not perfect games has been fairly steady throughout history (216 in the World Series era). Of the last 75 no-hitters, 12 (16.0%) have been perfect games. And yet, of the 136 no-hitters before that, only five (3.7%) were perfect games.
Data via Major League Baseball
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