Event: Summer Open Division

Opponent Rating Result
Geoffrey C Rosser 112 1 - 0
Keith Thomas 135 1 - 0
Shahab U Quraishi 152 ½ - ½
Geoffrey C Rosser 112 1 - 0
Keith Thomas 135 1 - 0
Shahab U Quraishi 152 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

333 = (798 + 400 * (4 - 1)) / 6)

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