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Player:  Walter de Koning  Age: 52 KNDB-rating on 1-7-2023: 976 Highest KNDB-rating ever: 1046 Average KNDB-rating all time: 976  Virtual KNDB-rating : 972 Strongest win in last 10 years by Walter de Koning (983): 13-10-2015 Reza Ghafoerkhan (1128) (Provincial Teamcompetition Zuid-Holland) Weakest loss in last 10 years by Walter de Koning (982): 10-11-2021 Wynton Meijer (765) (Provincial Teamcompetition Zuid-Holland)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
mo 18-09-2023	Provincial Teamcompetition Zuid-Holland	Edwin Remmerswaal	1015	1	-	1	-39	0.45	0.89
fr 06-10-2023	Provincial Teamcompetition Zuid-Holland	Alexander Zwanenburg	861	1	-	1	115	0.66	1.31
mo 30-10-2023	Provincial Teamcompetition Zuid-Holland	Leo van Teijlingen	906	1	-	0	70	0.6	1.19
mo 13-11-2023	Provincial Teamcompetition Zuid-Holland	Martijn van der Klis	1265	1	-	0	-289	0.16	0.31
tu 28-11-2023	Provincial Teamcompetition Zuid-Holland	Jack Mondt	1011	1	-	1	-35	0.45	0.9
mo 29-01-2024	Provincial Teamcompetition Zuid-Holland	Arno Kooloos	1041	1	-	1	-65	0.41	0.82
tu 27-02-2024	Provincial Teamcompetition Zuid-Holland	Martin de Jong	1152	1	-	0	-176	0.27	0.54
mo 11-03-2024	Provincial Teamcompetition Zuid-Holland	Bonne Douma	1023	1	-	2	-47	0.43	0.87
		Total:		8	-	6			6.84
		Correctionfactor:		5	(145 g.)
		Calculation:		6	-	6.84 x		5=	-4.19
		Virtual rating:							972
		Aver.rating:	1034	Perc.:			0.38	Diff.:	-91
		TPR: