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Player: Jan Jacobs Age: 62
KNDB-rating on 1-7-2023: 1168
Highest KNDB-rating ever: 1187
Average KNDB-rating all time: 1112
Virtual KNDB-rating : 1128 Toernooibase Dammen

Strongest win in last 10 years by
Jan Jacobs (1127):
07-02-2015 Alex Ketelaars (1260)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Jan Jacobs (1127):
22-01-2015 Jan Haage (770)
(Provincial Teamcompetition Gelderland)

FMJD-rating: 2020
Highest FMJD-rating ever: 2081
Average FMJD-rating all time: 2026
_{(Graphics FMJD-rating in period
KNDB-rating)}

Highest Historical
Toernooibaserating on 01-01-2010: 1108 D

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 09-09-2023	Dutch Teamcompetition KNDB	Haitze Meurs	1028	1	-	1	140	0.69	1.38
sa 23-09-2023	Dutch Teamcompetition KNDB	Geert Jan Loomans	1005	1	-	2	163	0.72	1.43
sa 14-10-2023	Dutch Teamcompetition KNDB	Jan Cysouw	873	1	-	0	295	0.85	1.7
su 22-10-2023	WC Veterans Korbach Buitenland	Frank Teer	1309	1	-	0	-141	0.31	0.62
mo 23-10-2023	WC Veterans Korbach Buitenland	Matthijs Broek	853	1	-	2	315	0.86	1.73
tu 24-10-2023	WC Veterans Korbach Buitenland	Juri Geisenblas	1145	1	-	1	23	0.53	1.06
fr 27-10-2023	WC Veterans Korbach Buitenland	Arie Janssen van Doorn	1162	1	-	0	6	0.51	1.02
sa 28-10-2023	WC Veterans Korbach Buitenland	Rob Knevel	1063	1	-	0	105	0.64	1.29
sa 04-11-2023	Dutch Teamcompetition KNDB	Jan Ongolesono	1038	1	-	2	130	0.68	1.35
sa 18-11-2023	Dutch Teamcompetition KNDB	Jean van Ingen	1079	1	-	1	89	0.62	1.24
sa 02-12-2023	Dutch Teamcompetition KNDB	Eric Conrad	1133	1	-	0	35	0.55	1.1
sa 06-01-2024	Dutch Teamcompetition KNDB	Harry Verdoolaege	1174	1	-	1	-6	0.49	0.98
sa 20-01-2024	Dutch Teamcompetition KNDB	Jelmer Martens	1111	1	-	1	57	0.58	1.16
sa 03-02-2024	Dutch Teamcompetition KNDB	Hans Dammingh	1109	1	-	0	59	0.58	1.16
sa 17-02-2024	Dutch Teamcompetition KNDB	Peter Klaassen	1078	1	-	0	90	0.62	1.25
sa 02-03-2024	Dutch Teamcompetition KNDB	Rommy Moerlie	1004	1	-	1	164	0.72	1.43
		Total:		16	-	12			19.91
		Correctionfactor:		5	(502 g.)
		Calculation:		12	-	19.91 x		5=	-39.53
		Virtual rating:							1128
		Aver.rating:	1073	Perc.:			0.38	Diff.:	-91
		TPR:	1073	+	-91				982