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Player:  Jan Oonk  Age: 82 KNDB-rating on 1-7-2024: 824 Highest KNDB-rating ever: 852 Average KNDB-rating all time: 831  Virtual KNDB-rating : 0 Strongest win in last 10 years by Jan Oonk (844): 29-11-2018 Jan Koerselman (938) (Provincial Teamcompetition Gelderland) Weakest loss in last 10 years by Jan Oonk (851): 28-10-2019 Johan Lammers (805) (Provincial Teamcompetition Gelderland)

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: