Event: South London Qualifier

Opponent Rating Result
Pratyush Joshi 1378 0 - 1
Imaan Khan 0 1 - 0
Ian S Cotton 1439 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

806 = (2817 + 400 * (1 - 2)) / 3)

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