Event: Individual Championship

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Opponent Rating Result
Ben Fearnhead 139 1 - 0
Graham J Ashcroft 161 0 - 1
Paul N Fearnhead 106 1 - 0
David E Aspinall 140 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

337 = (546 + 400 * (3 - 1)) / 4)

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