Event: Thornaby Junior Chess Open Under 11

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Opponent Rating Result
Ben Pearson 0 0 - 1
Sebastian Green 0 0 - 1
Oscar Metcalfe 0 0 - 1
Freya Hind 843 0 - 1
Keith Barker-Chapman 0 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-231 = (843 + 400 * (0 - 5)) / 5)

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