Event: 400 Max

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Opponent Rating Result
David M Cotterell 108 ½ - ½
Paul Joiner 91 1 - 0
David M Cotterell 108 1 - 0
Paul Joiner 91 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

400 = (398 + 400 * (3 - 0)) / 4)

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