Event: Division Four

Opponent Rating Result
Dave Hodkinson 119 ½ - ½
Phil F Staley 109 1 - 0
Ron Evans 126 ½ - ½
Peter Seeley 135 1 - 0
Stan Grayland 122 ½ - ½
Paul Heeney 107 ½ - ½
Steven R Colwell 112 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

290 = (830 + 400 * (3 - 0)) / 7)

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