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Event: EJCOA South Yorkshire U12

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Opponent Rating Result
Lexin Tao 788 0 - 1
Michael Leathley 791 0 - 1
Ruthvika Paladugu 0 1 - 0
Ashish Richard 924 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

426 = (2503 + 400 * (1 - 3)) / 4)

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