Event: Holmfirth Pod Chess League

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Opponent Rating Result
Dave Colledge 142 0 - 1
Alec Ward 205 0 - 1
Dave Gray 143 0 - 1
Daniel Czerniuch 75 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-259 = (565 + 400 * (0 - 4)) / 4)

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