Event: B&DCL Div 3

Opponent Rating Result
Mike Rutter 122 0 - 1
Malcolm Day 110 ½ - ½
Jan Van Heeckeren 111 1 - 0
Jan Van Heeckeren 111 1 - 0
Michael Jay 110 ½ - ½
Harold A Buckfield 127 ½ - ½
Graham Morris 90 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

169 = (781 + 400 * (2 - 1)) / 7)

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