Event: Division 3

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Opponent Rating Result
Jon A Asbury 1575 ½ - ½
Adrian Grimes 1401 1 - 0
George Mitchell 1470 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1749 = (4446 + 400 * (2 - 0)) / 3)

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