Event: Division 1

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Opponent Rating Result
Thomas G Winter 1782 ½ - ½
Mae C Catabay 1756 ½ - ½
Joe Crossley 1500 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1813 = (5038 + 400 * (1 - 0)) / 3)

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Opponent Rating Result
Nathan Barnes 1826 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1426 = (1826 + 400 * (0 - 1)) / 1)