Event: Doncaster Bell Trophy

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Opponent Rating Result
Phillip J Battye 146 0 - 1
A David Smart 122 1 - 0
Phillip J Battye 146 0 - 1
A David Smart 122 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

134 = (536 + 400 * (2 - 2)) / 4)

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