Event: Calderdale 30 2024-25

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Opponent Rating Result
John Nicholson 1430 1 - 0
Dave Colledge 1806 0 - 1
Bien Cuaresma 1664 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1633 = (4900 + 400 * (1 - 1)) / 3)

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