Event: 6 Board League

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Opponent Rating Result
David Summerland 1497 1 - 0
Elinor Gorrell 1489 1 - 0
Steve Harrington 1625 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1804 = (4611 + 400 * (2 - 0)) / 3)

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