Event: SCCU County Championship: U1850

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Opponent Rating Result
Roy Batchelor 0 ½ - ½
David Smith 1637 1 - 0
Peter Grant-Ross 1705 ½ - ½
David Smith 1637 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1345 = (4979 + 400 * (1 - 0)) / 4)

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