Event: League Division Three

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Opponent Rating Result
Olise Onwuka 0 0 - 1
Adam R Breeden 1487 0 - 1
Arthur Newns 0 ½ - ½
Sam Grafton 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

272 = (1487 + 400 * (1 - 2)) / 4)

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