Event: Club Challenge 2023

Opponent Rating Result
Edward Upsdell 1619 0 - 1
Roland Rattray 1492 0 - 1
Philip Morris 1768 0 - 1
Edward Upsdell 1601 0 - 1
Alan Davey 1418 0 - 1
Roland Rattray 1487 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1164 = (9385 + 400 * (0 - 6)) / 6)

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