Event: SCCU County Championship: Open

Opponent Rating Result
Roy Sagall 2203 0 - 1
Chris W Baker 2257 1 - 0
Geoffrey H James 2065 ½ - ½
Mark Josse 2206 0 - 1
Carsten Pedersen 2192 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

2105 = (10923 + 400 * (1 - 2)) / 5)

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