Event: C Division

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Opponent Rating Result
Ray Rushworth 1614 0 - 1
Leila Peymani 1537 ½ - ½
James Parkinson 1300 1 - 0
Ian Anderson 1518 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1492 = (5969 + 400 * (1 - 1)) / 4)

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