Event: St Andrews Club Championship

Opponent Rating Result
Steve Donoghue 75 1 - 0
Bryan Wilson 101 ½ - ½
N Charles Clayton 97 ½ - ½
Michael A Pollard 133 0 - 1
Ian Scott 109 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

183 = (515 + 400 * (2 - 1)) / 5)

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