Event: Wharfedale League 2022

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Opponent Rating Result
Simon Jones 1431 0 - 1
John A Light 1350 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1191 = (2781 + 400 * (0 - 1)) / 2)

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Opponent Rating Result
Charlie Wainwright 1463 1 - 0
Jonathan Wood 0 0 - 1
Simon Jones 1437 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

833 = (2900 + 400 * (1 - 2)) / 3)