Event: Region 17 West London

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Opponent Rating Result
Raman Vashisht-Pigem 108 ½ - ½
Krish Chauhan 0 1 - 0
Yiwen Ding 1721 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

876 = (1829 + 400 * (2 - 0)) / 3)

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