Event: Division 3

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Opponent Rating Result
Emile Kosviner 1251 0 - 1
Matthew Heftman 1500 1 - 0
Ray Firman 1150 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1300 = (3901 + 400 * (1 - 1)) / 3)

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