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Player:  Jaap van de Werfhorst  Age: 66 KNDB-rating on 1-7-2023: 1107 Highest KNDB-rating ever: 1156 Average KNDB-rating all time: 1096  Virtual KNDB-rating : 1120 Strongest win in last 10 years by Jaap van de Werfhorst (1116): 15-11-2019 Peter Kort (1286) (Provincial Teamcompetition Gelderland) Weakest loss in last 10 years by Jaap van de Werfhorst (1116): 23-11-2019 Bert Drent (654) (Dutch Teamcompetition KNDB) FMJD-rating: 2040 Highest FMJD-rating ever: 2047 Average FMJD-rating all time: 1977 (Graphics FMJD-rating in period KNDB-rating)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 09-09-2023	Dutch Teamcompetition KNDB	Kor de Groot	1133	1	-	0	-26	0.46	0.93
sa 23-09-2023	Dutch Teamcompetition KNDB	Gert Brink	784	1	-	2	323	0.87	1.74
th 28-09-2023	Provincial Teamcompetition Gelderland	Jan van Loenen Jr.	1268	1	-	1	-161	0.29	0.57
sa 04-11-2023	Dutch Teamcompetition KNDB	Gaele Stoker	1087	1	-	1	20	0.53	1.06
sa 18-11-2023	Dutch Teamcompetition KNDB	Jakob Pronk	1205	1	-	2	-98	0.37	0.73
fr 24-11-2023	Provincial Teamcompetition Gelderland	Robbert Westerink	1114	1	-	2	-7	0.49	0.98
tu 09-01-2024	Provincial Teamcompetition Gelderland	Johan Beltman	979	1	-	2	128	0.67	1.35
sa 20-01-2024	Dutch Teamcompetition KNDB	Lisa Scholtens	1166	1	-	1	-59	0.42	0.84
th 25-01-2024	Provincial Teamcompetition Gelderland	Dick Halma	944	1	-	2	163	0.72	1.43
th 08-02-2024	Provincial Teamcompetition Gelderland	Eddy Hoebink	1108	1	-	1	-1	0.5	1
sa 17-02-2024	Dutch Teamcompetition KNDB	Marcel Janssen	1294	1	-	0	-187	0.26	0.51
th 11-04-2024	Jan van der Zwan Cup Gelderland	Jos Stokkel	1368	1	-	0	-261	0.18	0.36
		Total:		12	-	14			11.49
		Correctionfactor:		5	(473 g.)
		Calculation:		14	-	11.49 x		5=	12.53
		Virtual rating:							1120
		Aver.rating:	1121	Perc.:			0.58	Diff.:	60
		TPR:	1121	+	60				1181