Event: Hillingdon Div X

Opponent Rating Result
Prabhgun Kapoor 1020 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

620 = (1020 + 400 * (0 - 1)) / 1)

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Opponent Rating Result
Mohammad Mustafa Sherzad 985 1 - 0
Niranjan R Ramesh 1182 1 - 0
Milao Ngoy 874 1 - 0
Marie Chan 475 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1279 = (3516 + 400 * (4 - 0)) / 4)