Event: Kenneth Appleby (U1700)

Opponent Rating Result
Mariana Ferreira 0 0 - 1
Simon Bartle 1141 1 - 0
Nigel Stansbie 1423 1 - 0
Izzy Jacobs 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

841 = (2564 + 400 * (3 - 1)) / 4)

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