Event: Thornaby Junior Chess Open Under 18

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Opponent Rating Result
George Butterworth 1099 0 - 1
Volodymyr Kryzhanovskyi 0 0 - 1
Ben Armstrong 0 0 - 1
Ravleen Singh 901 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

100 = (2000 + 400 * (0 - 4)) / 4)

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