Event: Doncaster Handicap League

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Opponent Rating Result
John Smart 129 1 - 0
Chris Bennett 154 1 - 0
Martin J Sheard 153 1 - 0
Chris Bennett 154 0 - 1
John Smart 129 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

304 = (719 + 400 * (3 - 1)) / 5)

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