Event: Doncaster Bell Trophy

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Opponent Rating Result
Phillip J Battye 146 1 - 0
Gerald R Thickett 81 1 - 0
Phillip J Battye 146 0 - 1
Gerald R Thickett 81 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

314 = (454 + 400 * (3 - 1)) / 4)

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