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Player:  Geert van Marrewijk  Age: 76 KNDB-rating on 1-7-2023: 811 Highest KNDB-rating ever: 834 Average KNDB-rating all time: 801  Virtual KNDB-rating : 789 Strongest win in last 10 years by Geert van Marrewijk (820): 23-05-2016 Bernard de Koning (954) (Championship of Westland) Weakest loss in last 10 years by Geert van Marrewijk (811): 15-01-2024 Porter Richardson (657) (Provincial Teamcompetition Zuid-Holland)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
th 21-09-2023	Provincial Teamcompetition Zuid-Holland	Menno Kamminga	624	1	-	1	187	0.74	1.49
fr 27-10-2023	Provincial Teamcompetition Zuid-Holland	Christiaan Rutjens	191	1	-	2	620	0.98	1.97
mo 27-11-2023	Provincial Teamcompetition Zuid-Holland	Jan Eekhout	811	1	-	0	0	0.5	1
mo 15-01-2024	Provincial Teamcompetition Zuid-Holland	Porter Richardson	657	1	-	0	154	0.71	1.41
mo 05-02-2024	Provincial Teamcompetition Zuid-Holland	Hanny de Vaal-Kokshoorn	643	1	-	1	168	0.72	1.44
mo 19-02-2024	Provincial Teamcompetition Zuid-Holland	Indy Schouten	522	1	-	2	289	0.84	1.69
mo 04-03-2024	Provincial Teamcompetition Zuid-Holland	Arie van Diggele	805	1	-	0	6	0.51	1.02
we 13-03-2024	Provincial Teamcompetition Zuid-Holland	Amand Keultjes	677	1	-	1	134	0.68	1.36
		Total:		8	-	7			11.38
		Correctionfactor:		5	(202 g.)
		Calculation:		7	-	11.38 x		5=	-21.88
		Virtual rating:							789
		Aver.rating:	616	Perc.:			0.44	Diff.:	-45
		TPR: