Event: Quick-Play

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Opponent Rating Result
Sean Parker 122 1 - 0
Sean Parker 122 ½ - ½
Thomas Hughes 92 1 - 0
Thomas Hughes 92 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

407 = (428 + 400 * (3 - 0)) / 4)

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