Event: Open

Opponent Rating Result
Henrik Stepanyan 203 0 - 1
John E Crump 169 ½ - ½
Simon C Smith 172 1 - 0
Henrik Stepanyan 203 0 - 1
John E Crump 169 ½ - ½
Simon C Smith 172 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

181 = (1088 + 400 * (2 - 2)) / 6)

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