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Player:  Durk Douma  KNDB-rating on 1-7-2023: 965 Highest KNDB-rating ever: 1095 Average KNDB-rating all time: 1032  Virtual KNDB-rating : 0 Strongest win in last 10 years by Durk Douma (1005): 27-02-2016 Johan Haijtink (1102) (Dutch Teamcompetition KNDB) Weakest loss in last 10 years by Durk Douma (1006): 27-03-2018 Sietze Jelsma (627) (Provincial Teamcompetition Friesland)  Highest Historical Toernooibaserating on 01-01-1977:  1248 D

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
		Correctionfactor:		7.5	( g.)
		Calculation:			-	0 x		7.5=	0
		Virtual rating:							0
		Aver.rating:	0	Perc.:			0.5	Diff.:	0
		TPR: