Event: Division 2 West

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Opponent Rating Result
Adrian Byrne 131 ½ - ½
Nigel Mills 127 0 - 1
Alan A Stonebridge 118 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

125 = (376 + 400 * (1 - 1)) / 3)

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