Event: 400 League

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Opponent Rating Result
John HT Eddershaw 96 1 - 0
Anthony G Steele 80 0 - 1
John HT Eddershaw 96 ½ - ½
Alan S Taylor 80 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

88 = (352 + 400 * (1 - 1)) / 4)

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