Event: Doncaster Bell Trophy

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Opponent Rating Result
Mick Henshaw 109 0 - 1
Steven R Brooks 123 1 - 0
Mick Henshaw 109 1 - 0
Steven R Brooks 123 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

216 = (464 + 400 * (2 - 1)) / 4)

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