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Player:  Jan Durk Klooster  Age: 75 KNDB-rating on 1-7-2023: 764 Highest KNDB-rating ever: 953 Average KNDB-rating all time: 852  Virtual KNDB-rating : 767 Strongest win in last 10 years by Jan Durk Klooster (841): 01-03-2017 Siep Altena (969) (FK 50 - 65 plus DCH Heerenveen - Mildam) Weakest loss in last 10 years by Jan Durk Klooster (850): 17-11-2015 Arend Schuurman (743) (Provincial Teamcompetition Friesland)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 23-09-2023	Dutch Teamcompetition KNDB	Ben Haan	1004	1	-	1	-240	0.2	0.4
		Total:		1	-	1			0.4
		Correctionfactor:		5	(148 g.)
		Calculation:		1	-	0.4 x		5=	3.00
		Virtual rating:							767
		Aver.rating:	1004	Perc.:			0.5	Diff.:	0
		TPR: