Event: Calderdale 30 2024-25

Opponent Rating Result
Matthew Parsons 2172 0 - 1
Connor Stephenson 1690 1 - 0
David Shapland 1850 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1771 = (5712 + 400 * (1 - 2)) / 3)

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