Event: R Division

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Opponent Rating Result
Samuel Agyemang 1100 1 - 0
Declan Johnston 900 1 - 0
Samuel Agyemang 1100 1 - 0
Declan Johnston 900 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1300 = (4000 + 400 * (3 - 0)) / 4)

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