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Event: EJCOA South Yorkshire U12

Opponent Rating Result
Mukil Balamurugan 1288 0 - 1
Ashish Richard 924 ½ - ½
Louie Carroll 783 0 - 1
Man Hei Alvin Wong 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

649 = (2995 + 400 * (1 - 2)) / 4)

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