Event: Calderdale 30 2024-25

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Opponent Rating Result
Anna Barmby 1620 0 - 1
Adam Smith 1630 0 - 1
John Nicholson 1430 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1427 = (4680 + 400 * (1 - 2)) / 3)

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