Event: 5th Somerset New Year Major

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Opponent Rating Result
Matthew Timbrell 1632 0 - 1
Philip J Walters 0 0 - 1
George Georgiou 1785 ½ - ½
Robert P Radford 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

654 = (3417 + 400 * (0 - 2)) / 4)

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