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Player:  Serf Klinkenberg  Age: 70 KNDB-rating on 1-7-2023: 964 Highest KNDB-rating ever: 1073 Average KNDB-rating all time: 992  Virtual KNDB-rating : 0 Strongest win in last 10 years by Serf Klinkenberg (1003): 06-01-2016 Dick de Boer (963) (Provincial Teamcompetition Utrecht) Weakest loss in last 10 years by Serf Klinkenberg (1003): 13-02-2016 Jeroen van den Brink (654) (Dutch Teamcompetition KNDB)

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: