Event: TCL Division 4

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Opponent Rating Result
Oliver Mortimer 107 0 - 1
Richard G Bailey 110 0 - 1
Roy Greenhalgh 103 1 - 0
Raymond W Chubb 93 0 - 1
John E Dean 109 0 - 1
Aarv Paul 106 0 - 1
James Fowler 95 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

-68 = (723 + 400 * (2 - 5)) / 7)

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