Event: MID County / Lewis Cup

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Opponent Rating Result
Jim R Bayford 178 ½ - ½
Cliff R Chandler 204 ½ - ½
Martin R Taylor 230 ½ - ½
Robert Jacobs 172 ½ - ½
Alan E Riddoch 153 1 - 0
Steve Marsland 179 1 - 0
Trefor H Owens 173 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

298 = (1289 + 400 * (2 - 0)) / 7)

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