Event: B Division

Opponent Rating Result
Adam Tyton 1872 ½ - ½
Adnan Sabir 1700 0 - 1
Paul Doherty 1759 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1777 = (5331 + 400 * (1 - 1)) / 3)

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