Event: LCA Division 1

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Opponent Rating Result
William Orr 1667 ½ - ½
John P Mainwaring 136 ½ - ½
Paul Wood 1635 1 - 0
Tom Bertins 1572 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1453 = (5010 + 400 * (2 - 0)) / 4)

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