Event: League Division 2

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Opponent Rating Result
John Grasham 1631 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1231 = (1631 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Richard Finney 1522 ½ - ½
Alexander Greenhough 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

561 = (1522 + 400 * (0 - 1)) / 2)