Event: Division 2

Opponent Rating Result
Ronald C Andriessen 123 ½ - ½
Andrew E James 128 0 - 1
Ian Webster 91 0 - 1
Andrew Gibson 137 ½ - ½
Adrian Walker 142 0 - 1
Eddie Fierek 131 ½ - ½
Raymond N Francis 124 1 - 0
Dave R Wingrove 101 1 - 0
David A Walton 106 0 - 1
David A Walton 106 1 - 0
Simon N Griffin 97 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

81 = (1286 + 400 * (3 - 4)) / 11)

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