Event: Hillingdon Div 2

Opponent Rating Result
Robert Parsons 1746 0 - 1
David A Stott 1501 0 - 1
Michael C Price 1746 0 - 1
David Housego 1345 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1385 = (6338 + 400 * (1 - 3)) / 4)

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