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Player: Ruurd Winkel Age: 85
KNDB-rating on 1-7-2023: 800
Highest KNDB-rating ever: 899
Average KNDB-rating all time: 847
Virtual KNDB-rating : 805 Toernooibase Dammen

Strongest win in last 10 years by
Ruurd Winkel (800):
12-12-2023 Bert Oegema (1074)
(Provincial Teamcompetition Friesland)
Toernooibase Dammen Weakest loss in last 10 years by
Ruurd Winkel (807):
08-02-2023 Louis Douma (617)
(Frisian Championship seniors DCH Heerenveen - Mildam)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 23-09-2023	Dutch Teamcompetition KNDB	Feiko Stoppels	872	1	-	1	-72	0.4	0.8
sa 14-10-2023	Dutch Teamcompetition KNDB	Hermann Loots	342	1	-	2	458	0.95	1.89
mo 16-10-2023	Provincial Teamcompetition Friesland	Gerben de Wit	1228	1	-	0	-428	0.07	0.13
sa 04-11-2023	Dutch Teamcompetition KNDB	Jilje Scheeringa	643	1	-	1	157	0.71	1.42
th 09-11-2023	Provincial Teamcompetition Friesland	Sietse Nagel	1112	1	-	0	-312	0.14	0.27
sa 02-12-2023	Dutch Teamcompetition KNDB	Engel Vrouwe	687	1	-	2	113	0.65	1.31
tu 12-12-2023	Provincial Teamcompetition Friesland	Bert Oegema	1074	1	-	2	-274	0.17	0.34
sa 06-01-2024	Dutch Teamcompetition KNDB	Marinus Damkat	893	1	-	1	-93	0.37	0.74
mo 08-01-2024	Provincial Teamcompetition Friesland	Jan Peters	952	1	-	0	-152	0.3	0.59
we 17-01-2024	Frisian championship seniors DCH Heerenveen - Mildam	Peter Achterstraat	1096	1	-	0	-296	0.15	0.3
sa 20-01-2024	Dutch Teamcompetition KNDB	Henk Veldhorst	883	1	-	2	-83	0.39	0.77
we 24-01-2024	Frisian championship seniors DCH Heerenveen - Mildam	Louis Douma	602	1	-	2	198	0.76	1.51
mo 29-01-2024	Provincial Teamcompetition Friesland	Klaas de Vries	867	1	-	1	-67	0.41	0.81
we 31-01-2024	Frisian championship seniors DCH Heerenveen - Mildam	Jan Sikkens	792	1	-	0	8	0.51	1.02
sa 03-02-2024	Dutch Teamcompetition KNDB	Marcel Zwiers	724	1	-	1	76	0.6	1.21
we 07-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Klaas Mondria	821	1	-	2	-21	0.47	0.94
we 14-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Wim van der Molen	1086	1	-	0	-286	0.16	0.32
sa 17-02-2024	Dutch Teamcompetition KNDB	Joost Meijer	768	1	-	2	32	0.54	1.09
mo 19-02-2024	Provincial Teamcompetition Friesland	Hans Zondervan	1253	1	-	0	-453	0.06	0.11
we 21-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Wypke Rusticus	689	1	-	1	111	0.65	1.3
we 28-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Anna Bakker	567	1	-	1	233	0.79	1.59
sa 02-03-2024	Dutch Teamcompetition KNDB	Hiltjo Haze	798	1	-	0	2	0.5	1.01
we 06-03-2024	Frisian championship seniors DCH Heerenveen - Mildam	Jan Peters	952	1	-	0	-152	0.3	0.59
		Total:		23	-	21			20.08
		Correctionfactor:		5	(364 g.)
		Calculation:		21	-	20.08 x		5=	4.59
		Virtual rating:							805
		Aver.rating:	857	Perc.:			0.46	Diff.:	-31
		TPR:	857	+	-31				826