Event: Summer Max 480 Division

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Opponent Rating Result
Philip C Maybury 132 ½ - ½
Fred S Dickson 123 0 - 1
Philip C Maybury 132 1 - 0
Fred S Dickson 123 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

228 = (510 + 400 * (2 - 1)) / 4)

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