Event: C Division

Opponent Rating Result
Peter R Archer 1510 ½ - ½
Gary Leighton 1267 1 - 0
Kevin M Waterman 1608 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1595 = (4385 + 400 * (1 - 0)) / 3)

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