Event: Hillingdon Div 2

Opponent Rating Result
Robert Parsons 1706 0 - 1
Matthew Georgiou 1915 0 - 1
Phil S Humphry 1258 1 - 0
Ashok Shah 1165 1 - 0
Alastair G Johnstone 1593 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1607 = (7637 + 400 * (3 - 2)) / 5)

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