Event: 6 Board League

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Opponent Rating Result
Steve Harrington 1625 1 - 0
Vivien Webster 137 1 - 0
John K Holliday 1721 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1561 = (3483 + 400 * (3 - 0)) / 3)

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