Event: R Division

Opponent Rating Result
William Bartlett 1363 0 - 1
Lachlan Harding-Cornish 1350 0 - 1
Lachlan Harding-Cornish 1350 ½ - ½
William Bartlett 1363 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1057 = (5426 + 400 * (0 - 3)) / 4)

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