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Player:  Arie Heikoop  Age: 67 KNDB-rating on 1-7-2023: 936 Highest KNDB-rating ever: 1010 Average KNDB-rating all time: 965  Virtual KNDB-rating : 919 Strongest win in last 10 years by Arie Heikoop (931): 14-01-2020 Bert Zijlstra (1026) (Provincial Teamcompetition Overijssel) Weakest loss in last 10 years by Arie Heikoop (936): 20-11-2023 Gerrit-Jan Frelink (828) (Provincial Teamcompetition Overijssel)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 09-09-2023	Dutch Teamcompetition KNDB	Luit Haan	948	1	-	0	-12	0.48	0.97
sa 04-11-2023	Dutch Teamcompetition KNDB	Frank Eektimmerman	1149	1	-	0	-213	0.23	0.46
mo 20-11-2023	Provincial Teamcompetition Overijssel	Gerrit-Jan Frelink	828	1	-	0	108	0.65	1.29
sa 02-12-2023	Dutch Teamcompetition KNDB	Adrie Koedoot	683	1	-	1	253	0.81	1.62
tu 12-12-2023	Provincial Teamcompetition Overijssel	A. Mostert Hzn	822	1	-	1	114	0.66	1.31
sa 20-01-2024	Dutch Teamcompetition KNDB	Jan Dekker	906	1	-	1	30	0.54	1.08
tu 23-01-2024	Provincial Teamcompetition Overijssel	Siep Hamster	952	1	-	2	-16	0.48	0.96
sa 03-02-2024	Dutch Teamcompetition KNDB	Harry Vos	1084	1	-	0	-148	0.3	0.6
mo 19-02-2024	Provincial Teamcompetition Overijssel	Wim Leijssenaar	932	1	-	2	4	0.51	1.01
sa 02-03-2024	Dutch Teamcompetition KNDB	Harry Beekman	1056	1	-	0	-120	0.34	0.67
tu 19-03-2024	Provincial Teamcompetition Overijssel	Jacob Lok	810	1	-	1	126	0.67	1.34
		Total:		11	-	8			11.32
		Correctionfactor:		5	(194 g.)
		Calculation:		8	-	11.32 x		5=	-16.61
		Virtual rating:							919
		Aver.rating:	925	Perc.:			0.36	Diff.:	-100
		TPR:	925	+	-100				825