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Event: EJCOA South Yorkshire U8/U10

Opponent Rating Result
Savannah Ashton 1010 0 - 1
Chuanxi Wang 815 ½ - ½
Alexei White 743 0 - 1
Kai Abdulla 685 1 - 0
Dominic Pugaciauskas 766 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

644 = (4019 + 400 * (1 - 3)) / 5)

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