Event: Hillingdon Div 2

Opponent Rating Result
Tomer Eden 2167 0 - 1
Alexander Horwood 1590 1 - 0
Ron Foale 1629 1 - 0
Arthur Cann 1658 1 - 0
Darsh Santosh Kumar 1557 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1960 = (8601 + 400 * (4 - 1)) / 5)

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