Event: Belper Club Championships

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Opponent Rating Result
Alan Holden 1420 1 - 0
Alan F Downham 1923 1 - 0
John Potter 0 0 - 1
Roger Moors 0 1 - 0
Alesandro Giovannelli 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

749 = (3343 + 400 * (3 - 2)) / 5)

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