Event: League Championship

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Opponent Rating Result
Thomas Hughes 107 0 - 1
Yasmin Giles 160 ½ - ½
John D Lyth 180 0 - 1
Brian Cornish 117 1 - 0
Jonathan Rashleigh 130 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-21 = (694 + 400 * (1 - 3)) / 5)

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Opponent Rating Result
Lukas Zierahn 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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