Last year, no one in all of MLB pitched over 240. To get a game score of 65+, you generally have to go fairly deep into a game. So, to some extent, the chronological makeup of these lists reflects the changes in managerial style more than the quality of pitching staffs. ]]>

Start with 50 points. Add 1 point for each out recorded, (or 3 points per inning). Add 2 points for each inning completed after the 4th. Add 1 point for each strikeout. Subtract 2 points for each hit allowed. Subtract 4 points for each earned run allowed. Subtract 2 points for each unearned run allowed. Subtract 1 point for each walk.

So, conceivably, a perfect game would be 50+27+10=87

So how could one get a game score higher than 87? Aside from pitching more than 9 innings, of course. I also notice that Buehrle's perfect game was a 93. How did that add up?