Event: A&B Division

Opponent Rating Result
Jonathan Sams 1814 ½ - ½
Dave Frank 1522 1 - 0
Giuseppe Magazzu 1975 1 - 0
Mike Pointon 1668 ½ - ½
Nikhil Bhandari 1695 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1975 = (8674 + 400 * (3 - 0)) / 5)

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