Event: League Division Two

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Opponent Rating Result
Karim Khan 143 0 - 1
Rupert W Jones 151 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

147 = (294 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Bernie T Hare 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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