Event: Wharfedale League 2022

Opponent Rating Result
James Hall 1817 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1817 = (1817 + 400 * (0 - 0)) / 1)

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Opponent Rating Result
Greg Billenness 1773 0 - 1
Jacob Smith 1564 1 - 0
Andrew B Mata 0 0 - 1
Matthew Webb 0 0 - 1
Pete Redmond 1915 ½ - ½
Graham N Redmond 1790 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1040 = (7042 + 400 * (1 - 3)) / 6)