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Player: Bert Zijlstra Age: 56
KNDB-rating on 1-7-2023: 1042
Highest KNDB-rating ever: 1064
Average KNDB-rating all time: 1023
Virtual KNDB-rating : 1038 Toernooibase Dammen

Strongest win in last 10 years by
Bert Zijlstra (1042):
03-02-2024 Erwin Heslinga (1291)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Bert Zijlstra (1026):
11-02-2020 Anne de Jong (795)
(Clubcompetition Lelystad)

FMJD-rating: 2004
Highest FMJD-rating ever: 2076
Average FMJD-rating all time: 2026
_{(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	Gerrit Eilander	933	1	-	1	109	0.65	1.3
tu 12-09-2023	Clubcompetitie Lelystad	Mark Hees	1013	1	-	1	29	0.54	1.08
we 20-09-2023	Clubcompetitie Lelystad	Boike Mathoera	1067	1	-	1	-25	0.47	0.93
sa 23-09-2023	Dutch Teamcompetition KNDB	Harwin Reuvekamp	956	1	-	2	86	0.62	1.24
we 27-09-2023	Clubcompetitie Lelystad	Wijnand Groen	884	1	-	2	158	0.71	1.42
we 11-10-2023	Clubcompetitie Lelystad	Jan van de Veen	1139	1	-	0	-97	0.37	0.73
sa 14-10-2023	Dutch Teamcompetition KNDB	Jan Bosch	1018	1	-	0	24	0.53	1.07
we 18-10-2023	Clubcompetitie Lelystad	Cyril Sluisdom	1007	1	-	0	35	0.55	1.1
we 25-10-2023	Clubcompetitie Lelystad	Wiebren de Vries	1022	1	-	0	20	0.53	1.06
we 01-11-2023	Clubcompetitie Lelystad	Dirk van Roozelaar	830	1	-	0	212	0.77	1.54
sa 04-11-2023	Dutch Teamcompetition KNDB	Hans Luchies	914	1	-	1	128	0.67	1.35
tu 07-11-2023	Provincial Teamcompetition Overijssel	Alie Beekman-van Duinen	1096	1	-	0	-54	0.43	0.85
we 15-11-2023	Clubcompetitie Lelystad	Wijnand Groen	884	1	-	1	158	0.71	1.42
sa 18-11-2023	Dutch Teamcompetition KNDB	Jan Dekker	906	1	-	2	136	0.68	1.37
tu 21-11-2023	Clubcompetitie Lelystad	Jan van de Veen	1139	1	-	0	-97	0.37	0.73
sa 02-12-2023	Dutch Teamcompetition KNDB	Linze Houwink	1145	1	-	1	-103	0.36	0.72
we 06-12-2023	Clubcompetitie Lelystad	Wiebren de Vries	1022	1	-	1	20	0.53	1.06
tu 12-12-2023	Provincial Teamcompetition Overijssel	Gerrit Eilander	933	1	-	2	109	0.65	1.3
we 20-12-2023	Clubcompetitie Lelystad	Cyril Sluisdom	1007	1	-	1	35	0.55	1.1
sa 06-01-2024	Dutch Teamcompetition KNDB	Han Borgman	1138	1	-	0	-96	0.37	0.74
tu 09-01-2024	Clubcompetitie Lelystad	Mark Hees	1013	1	-	0	29	0.54	1.08
we 17-01-2024	Clubcompetitie Lelystad	Dirk van Roozelaar	830	1	-	2	212	0.77	1.54
sa 20-01-2024	Dutch Teamcompetition KNDB	Wim van der Molen	1086	1	-	1	-44	0.44	0.88
mo 22-01-2024	Provincial Teamcompetition Overijssel	Maikel van den Esker	1111	1	-	2	-69	0.4	0.81
th 25-01-2024	Clubcompetitie Lelystad	Wijnand Groen	884	1	-	2	158	0.71	1.42
we 31-01-2024	Clubcompetitie Lelystad	Jan van Agteren	379	1	-	2	663	0.99	1.98
sa 03-02-2024	Dutch Teamcompetition KNDB	Erwin Heslinga	1291	1	-	2	-249	0.19	0.38
tu 06-02-2024	Provincial Teamcompetition Overijssel	Michel Stempher	1410	1	-	0	-368	0.1	0.2
we 14-02-2024	Clubcompetitie Lelystad	Cyril Sluisdom	1007	1	-	2	35	0.55	1.1
sa 17-02-2024	Dutch Teamcompetition KNDB	Jaap Huizinga	1058	1	-	1	-16	0.48	0.96
tu 20-02-2024	Clubcompetitie Lelystad	Mark Hees	1013	1	-	2	29	0.54	1.08
we 28-02-2024	Clubcompetitie Lelystad	Jan van de Veen	1139	1	-	0	-97	0.37	0.73
sa 02-03-2024	Dutch Teamcompetition KNDB	Frank ten Hagen	1065	1	-	1	-23	0.47	0.94
we 06-03-2024	Clubcompetitie Lelystad	Wiebren de Vries	1022	1	-	2	20	0.53	1.06
tu 12-03-2024	Provincial Teamcompetition Overijssel	Wiebren de Vries	1022	1	-	2	20	0.53	1.06
we 17-04-2024	Clubcompetitie Lelystad	Kenneth Hilaire	1206	1	-	0	-164	0.28	0.57
		Total:		36	-	37			37.86
		Correctionfactor:		5	(323 g.)
		Calculation:		37	-	37.86 x		5=	-4.29
		Virtual rating:							1038
		Aver.rating:	1016	Perc.:			0.51	Diff.:	10
		TPR:	1016	+	10				1026