Event: Division 1

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Opponent Rating Result
John Lightowler 138 0 - 1
Steve J Dyer 124 1 - 0
Graham D Neville 151 1 - 0
Patrick Baker 133 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

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

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