Event: C Division

Opponent Rating Result
Ian D Lamb 1612 1 - 0
Nathan Harvey-Jones 1686 1 - 0
Michael Tebelev 1892 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1997 = (5190 + 400 * (2 - 0)) / 3)

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