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Player:  Guus Potjes  Age: 78 KNDB-rating on 1-7-2023: 677 Highest KNDB-rating ever: 786 Average KNDB-rating all time: 700  Virtual KNDB-rating : 0 Strongest win in last 10 years by Guus Potjes (739): 12-11-2015 Joop Buurman (878) (Provincial Teamcompetition Zuid-Holland) Weakest loss in last 10 years by Guus Potjes (702): 12-02-2018 Hanny de Vaal-Kokshoorn (616) (Provincial Teamcompetition Zuid-Holland)

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: