Event: TCC South London Event

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Opponent Rating Result
Sophie Kalckstein 0 1 - 0
Wajd Nasser 0 0 - 1
Vinay Keshav 1321 0 - 1
Marton Gyorgy 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

130 = (1321 + 400 * (1 - 3)) / 4)

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