Event: Tonbridge Qualifier

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Opponent Rating Result
Justin YQ Zhao 1281 1 - 0
Druha Chandrashekhar 0 0 - 1
Alida Chan 1102 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

661 = (2383 + 400 * (1 - 2)) / 3)

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