Event: Division 3 West

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Opponent Rating Result
Christopher P Greenaway 117 ½ - ½
Martin R Fields 109 0 - 1
Pat Warren 48 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

91 = (274 + 400 * (1 - 1)) / 3)

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Opponent Rating Result
Paul Groves 109 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-291 = (109 + 400 * (0 - 1)) / 1)