Event: TCL Division 1

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Opponent	Rating	Result
Dennis R Cowley	173	0 - 1
Michael H Stinton-Brownbridge	154	1 - 0
Alan W Brusey	158	0 - 1
Trefor F Thynne	170	1 - 0
Dennis R Cowley	173	1 - 0
Michael H Stinton-Brownbridge	154	½ - ½

performance = (sum(opponents ratings) + 400(wins-losses)) / games

230 = (982 + 400 * (3 - 2)) / 6)