Event: Hillingdon Div 3

Opponent Rating Result
Kishan Pattni 1752 1 - 0
Aryan Chaudhary 1374 1 - 0
Gregory Barseghyan 1655 0 - 1
Arthur Cann 1529 ½ - ½
Max Dickson 1719 0 - 1
James Lyons 1592 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1537 = (9621 + 400 * (2 - 3)) / 6)

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