Monday, October 11, 2010

The Symmetry of Cole Hamels' great start against the Cincinnati Reds

Philadelphia Phillies starting pitcher Cole Hamels had a brilliant outing in game 3 of the NLDS in Cincinnati.

I've become interested in the characteristics of line drawings I created from score cards of great pitching performances. They have a symmetry that reflects the efficiency and effectiveness of the pitcher in those games. I've published two other articles like this one that illuminate some interesting metrics observable in score cards of games in the 2010 MLB Post Season.

Here's Cole Hamels' pitching line:

Score card: Cole Hamels pitching to the Cincinnati Reds on October 10, 2010:

The line drawing derived from the score card. In four innings he faced 4 batters, in five innings he faced the minimum 3 batters.

Notice the diagonal symmetry, even though the innings where he faced 4 batters and where he faced 3 batters are fairly random.

  • 1st inning 4 batters
  • 2nd inning 4 batters
  • 3rd inning 3 batters
  • 4th inning 4 batters
  • 5th inning 3 batters
  • 6th inning 3 batters
  • 7th inning 4 batters
  • 8th inning 3 batters
  • 9th inning 3 batters

If he had had a 3 batter 2nd inning, there would have been a nine inning pattern. As it is a really solid pattern doesn't start until in the forth.


(Is English the only language where two identical words can follow each other in a sentence?)


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