Event: Max 400

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Opponent Rating Result
Phil Maddocks 140 ½ - ½
Sean Ralph 160 0 - 1
Phil Maddocks 140 1 - 0
Sean Ralph 160 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

250 = (600 + 400 * (2 - 1)) / 4)

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