Event: Calderdale 30 2024-25

Opponent Rating Result
Cobus Daneel 1790 0 - 1
Leo A Keely 1988 ½ - ½
David Shapland 1850 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1743 = (5628 + 400 * (0 - 1)) / 3)

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