Event: 6 Board League

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Opponent Rating Result
Craig Jordan 0 1 - 0
Mick Overend 0 1 - 0
David Summerland 1502 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

901 = (1502 + 400 * (3 - 0)) / 3)

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