Event: Hillingdon Div 1

Opponent Rating Result
Senthilnathan Yogit 2128 0 - 1
Colum Jezierski 2000 0 - 1
Simon Healeas 1902 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1610 = (6030 + 400 * (0 - 3)) / 3)

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