Event: Beverley Club Championship

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Opponent Rating Result
Tim M Turner 167 0 - 1
Steve Tomlinson 89 ½ - ½
J Gerry Johnstone 120 ½ - ½
Alec Grice 138 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

29 = (514 + 400 * (0 - 1)) / 4)

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