Event: Beverley Club Championship

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Opponent Rating Result
Graham Lee 113 ½ - ½
Steve Hughes 92 1 - 0
Edward S Oxley 141 0 - 1
Steve Tomlinson 102 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

212 = (448 + 400 * (2 - 1)) / 4)

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