Event: Hillingdon Div 2

Opponent Rating Result
Arthur Cann 1676 0 - 1
Veer Gill 1526 0 - 1
Darsh Santosh Kumar 1555 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1319 = (4757 + 400 * (0 - 2)) / 3)

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