Event: Division Three

Opponent Rating Result
Christopher D Lewis 170 0 - 1
Scott Russell 153 ½ - ½
Stephen R Wilcox 148 ½ - ½
Derek A Stockhall 121 ½ - ½
David W Fone 119 ½ - ½
Bodrul Chowdhury 142 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

142 = (853 + 400 * (1 - 1)) / 6)

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