Event: Doncaster Bell Trophy

Opponent Rating Result
Martin J Sheard 176 ½ - ½
Peter JE Ackley 201 ½ - ½
Andrew Butterworth 1994 ½ - ½
Martin S Simmonds 152 0 - 1
John Smart 107 ½ - ½
Richard F Hall 1747 1 - 0
John E Beech 113 1 - 0
Martin J Sheard 176 0 - 1
Peter JE Ackley 201 0 - 1
Andrew Butterworth 1994 0 - 1
Martin S Simmonds 152 1 - 0
John Smart 107 1 - 0
Richard F Hall 1747 0 - 1
John E Beech 113 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

641 = (8980 + 400 * (5 - 5)) / 14)

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