Event: Club Championship 2022/2023

Opponent Rating Result
Michael C Hackett 1615 ½ - ½
David J Gibson 1541 ½ - ½
Kevin Chilvers 1715 1 - 0
Derek A Sheppard 1715 1 - 0
Tim M Turner 1884 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1854 = (8470 + 400 * (2 - 0)) / 5)

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