Event: R Division

Opponent Rating Result
James Marshall 1393 0 - 1
Leo Cheung 1285 0 - 1
Mike Swift 1400 0 - 1
James Marshall 1393 ½ - ½
Leo Cheung 1285 1 - 0
Mike Swift 1400 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1293 = (8156 + 400 * (2 - 3)) / 6)

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