Event: Wharfedale League 2023

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Opponent Rating Result
Tim Appleyard 1139 0 - 1
Dave Langdale 1577 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

958 = (2716 + 400 * (0 - 2)) / 2)

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Opponent Rating Result
Gabor Csordas-Vizi 0 ½ - ½
Jon Hinds 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-200 = (0 + 400 * (0 - 1)) / 2)