Event: Div1

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Opponent Rating Result
Anthony J Green 169 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-231 = (169 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Martin Cobham 149 ½ - ½
Steve Bracey 161 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

155 = (310 + 400 * (0 - 0)) / 2)