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Player:  Zwaantje van der Werff  Age: 73 KNDB-rating on 1-7-2023: 695 Highest KNDB-rating ever: 906 Average KNDB-rating all time: 735  Virtual KNDB-rating : 689 Strongest win in last 10 years by Zwaantje van der Werff (723): 10-10-2016 Gerben Tjeerdsma (779) (Provincial Teamcompetition Friesland) Weakest loss in last 10 years by Zwaantje van der Werff (723): 07-03-2017 Bobby Baarda (719) (Provincial Teamcompetition Friesland) FMJD-rating: 2009 Highest FMJD-rating ever: 2100 Average FMJD-rating all time: 2019 (Graphics FMJD-rating in period KNDB-rating)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
tu 31-10-2023	Provincial Teamcompetition Friesland	Douwe Douma	939	1	-	0	-244	0.2	0.39
mo 08-01-2024	Provincial Teamcompetition Friesland	Klaas Herder	897	1	-	0	-202	0.24	0.48
tu 06-02-2024	Provincial Teamcompetition Friesland	Gerard Weinans	712	1	-	1	-17	0.48	0.95
		Total:		3	-	1			1.83
		Correctionfactor:		7.5	(83 g.)
		Calculation:		1	-	1.83 x		7.5=	-6.19
		Virtual rating:							689
		Aver.rating:	849	Perc.:			0.17	Diff.:	-276
		TPR: