Event: Billingham Synthonia Chess Club Championship 2023-24

Opponent Rating Result
Andrew Herrity 1000 0 - 1
Graham Bartram 976 1 - 0
Bernie Callaghan 1294 ½ - ½
Stuart McLaughlin 1440 0 - 1
Derek Simpson 1459 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1154 = (6169 + 400 * (1 - 2)) / 5)

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