Event: Calderdale 30 2024-25

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Opponent Rating Result
David Shapland 1850 0 - 1
Jeremy Butts 1630 0 - 1
Cobus Daneel 1790 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1357 = (5270 + 400 * (0 - 3)) / 3)

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