Event: Division A

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Opponent Rating Result
Ben Fearnhead 139 ½ - ½
Peter Thompson 158 ½ - ½
Colin Wilks 113 1 - 0
Cliff H Rutlidge 154 1 - 0
Robert Tinton 124 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

378 = (688 + 400 * (3 - 0)) / 5)

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Opponent Rating Result
Peter A Wilson 145 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

145 = (145 + 400 * (0 - 0)) / 1)