Event: Division 2

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Opponent Rating Result
John Lightowler 1685 ½ - ½
Thomas Weavin 1639 0 - 1
Ian Gambles 1664 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1529 = (4988 + 400 * (0 - 1)) / 3)

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