Event: Gordon Nobbs League

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Opponent Rating Result
Michael Ghillyer 46 1 - 0
Martin Quinn 142 ½ - ½
Martin Quinn 142 ½ - ½
John E Dean 123 0 - 1
John E Dean 123 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

195 = (576 + 400 * (2 - 1)) / 5)

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