Event: Maidstone Club Championship (22/23)

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Opponent Rating Result
David R Heath 1848 0 - 1
Cliff R Chandler 2278 0 - 1
David A Munford 1904 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1877 = (6030 + 400 * (1 - 2)) / 3)

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