Event: West London Qualifier

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Opponent Rating Result
Aarav G Gupta 1542 0 - 1
Ruth Kifle 0 1 - 0
Arabella Crawford 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

647 = (1542 + 400 * (2 - 1)) / 3)

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