Event: Preston Club Championship

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Opponent Rating Result
Charalampos Patsos 100 ½ - ½
Phillip J Taylor 149 0 - 1
Peter E Jowett 187 0 - 1
Andrew R De Santos 99
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-121 = (436 + 400 * (0 - 2)) / 3)

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