Event: 10 minutes

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Opponent Rating Result
William Jones 0 0 - 1
Thomas Fisher 0 0 - 1
Voitek Martynowicz 0 0 - 1
Emma Bowns 0 1 - 0
Gavin Johnstone 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-240 = (0 + 400 * (1 - 4)) / 5)

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