Event: Billingham Synthonia Chess Club Championship 2023-24

Opponent Rating Result
Nicola Harrington 1000 1 - 0
Paul Weightman 1592 1 - 0
Sean Cassidy 1562 0 - 1
Geoffrey Garnett 1409 1 - 0
John S Garnett 1963 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1585 = (7526 + 400 * (3 - 2)) / 5)

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