Event: U1800 Cup

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Opponent Rating Result
Adrian Sanderson 1502 ½ - ½
Mark Heffer 1693 0 - 1
Dominic Douse 1400 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1532 = (4595 + 400 * (1 - 1)) / 3)

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