Event: Doncaster Bell Trophy

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Opponent Rating Result
Richard E Desmedt 143 0 - 1
Richard E Desmedt 143 0 - 1
Richard E Desmedt 143 0 - 1
Richard E Desmedt 143 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-257 = (572 + 400 * (0 - 4)) / 4)

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