Event: Division Two

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Opponent Rating Result
Andy Ambrose 145 0 - 1
Simon A Killarney 131 ½ - ½
Mike P Maher 149 1 - 0
Robert Glass 154 ½ - ½
Stephen M Chadaway 139 0 - 1
Jonathan B Hunt 146 ½ - ½
Stephen J Crockett 146 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

87 = (1010 + 400 * (1 - 2)) / 7)

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