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Player:  Arend Boertje  Age: 73 KNDB-rating on 1-7-2023: 830 Highest KNDB-rating ever: 1014 Average KNDB-rating all time: 862  Virtual KNDB-rating : 840 Strongest win in last 10 years by Arend Boertje (825): 13-11-2021 Jakob de Vries (984) (Dutch Teamcompetition KNDB) Weakest loss in last 10 years by Arend Boertje (1014): 04-01-2020 Lisa Scholtens (827) (Dutch Teamcompetition KNDB)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 09-09-2023	Dutch Teamcompetition KNDB	Siep Altena	950	1	-	2	-120	0.34	0.67
sa 23-09-2023	Dutch Teamcompetition KNDB	Jan Pluim	943	1	-	0	-113	0.35	0.69
mo 02-10-2023	Dutch Championship Cat. C KNDB	Elzo de Vries	682	1	-	1	148	0.7	1.4
tu 03-10-2023	Dutch Championship Cat. C KNDB	Kees Osté	760	1	-	2	70	0.6	1.19
tu 03-10-2023	Dutch Championship Cat. C KNDB	Erik Ploeger	869	1	-	2	-39	0.45	0.89
we 04-10-2023	Dutch Championship Cat. C KNDB	Tonnie Schutte	896	1	-	0	-66	0.41	0.82
th 05-10-2023	Dutch Championship Cat. C KNDB	Ton Schockman	846	1	-	1	-16	0.48	0.96
th 05-10-2023	Dutch Championship Cat. C KNDB	Bé Brakels	763	1	-	1	67	0.59	1.19
fr 06-10-2023	Dutch Championship Cat. C KNDB	Gert Brink	784	1	-	1	46	0.56	1.13
sa 07-10-2023	Dutch Championship Cat. C KNDB	Robert Broekman	805	1	-	2	25	0.53	1.07
sa 18-11-2023	Dutch Teamcompetition KNDB	Jesper Ekkelkamp	753	1	-	1	77	0.61	1.21
sa 06-01-2024	Dutch Teamcompetition KNDB	Jacob Reiffers	991	1	-	0	-161	0.29	0.57
sa 17-02-2024	Dutch Teamcompetition KNDB	Cees van Drumpt	862	1	-	1	-32	0.46	0.91
		Total:		13	-	14			12.7
		Correctionfactor:		7.5	(26 g.)
		Calculation:		14	-	12.7 x		7.5=	9.76
		Virtual rating:							840
		Aver.rating:	839	Perc.:			0.54	Diff.:	28
		TPR:	839	+	28				867