Event: Altrincham

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Opponent Rating Result
Harry Rafferty 1285 1 - 0
Arjan Robinson 986 1 - 0
Anirudh Nedungadi 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1157 = (2271 + 400 * (3 - 0)) / 3)

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