Event: Division 4

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Opponent Rating Result
Julian N Hawthorne 128 1 - 0
Clive N Ferry 129 ½ - ½
Clive N Ferry 129 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

395 = (386 + 400 * (2 - 0)) / 3)

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