Event: D&DCL Div 1

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Opponent Rating Result
Derek A Jarvis 173 1 - 0
Tim Humphries 154 0 - 1
Sohrab Panday 161 ½ - ½
Steven J Burke 166 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

164 = (654 + 400 * (1 - 1)) / 4)

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