Event: Rapidplay

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Opponent Rating Result
John Maloney 110 ½ - ½
John Maloney 110 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-90 = (220 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Sam Brennan 114 0 - 1
Sam Brennan 114 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

114 = (228 + 400 * (1 - 1)) / 2)