Event: Doncaster Bell Trophy

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Opponent Rating Result
Peter M Tate 129 1 - 0
Alan J Smith 111 1 - 0
Alan J Smith 111 1 - 0
Peter M Tate 129 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

320 = (480 + 400 * (3 - 1)) / 4)

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