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Player:  Erik Kooiker  Age: 58 KNDB-rating on 1-7-2023: 826 Highest KNDB-rating ever: 831 Average KNDB-rating all time: 792  Virtual KNDB-rating : 0 Strongest win in last 10 years by Erik Kooiker (813): 13-10-2014 Jan Uyterlinde (960) (Provincial Teamcompetition Utrecht) Weakest loss in last 10 years by Erik Kooiker (825): 28-11-2017 Hans Verhoeven (881) (Provincial Teamcompetition Utrecht)

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: