Event: Doncaster Handicap League

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Opponent Rating Result
Farrell P Clifford 138 0 - 1
Gerald R Thickett 109 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

124 = (247 + 400 * (1 - 1)) / 2)

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Opponent Rating Result
Binali Yilmaz 85 ½ - ½
Peter M Tate 120 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-98 = (205 + 400 * (0 - 1)) / 2)