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Player:  Ferdinand de Grijs  Age: 69 KNDB-rating on 1-7-2023: 0 Highest KNDB-rating ever: 0 Average KNDB-rating all time: 710  Virtual KNDB-rating : 710

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 23-09-2023	Dutch Teamcompetition KNDB	Erik Oonk	920	1	-	0	-210	0.23	0.46
sa 02-12-2023	Dutch Teamcompetition KNDB	Bertus de Vries	906	1	-	2	-196	0.25	0.49
sa 06-01-2024	Dutch Teamcompetition KNDB	Jan Dekker	906	1	-	0	-196	0.25	0.49
sa 20-01-2024	Dutch Teamcompetition KNDB	Bouwe Ringnalda	964	1	-	0	-254	0.19	0.37
sa 03-02-2024	Dutch Teamcompetition KNDB	Gino Schirinzi	1147	1	-	0	-437	0.06	0.13
th 11-04-2024	Jan van der Zwan Cup Gelderland	Ton Eekelschot	1071	1	-	0	-361	0.1	0.21
		Total:		6	-	2			2.15
		Correctionfactor:		7.5	(6 g.)
		Calculation:
		Tot. aver. o-rating (incl. earl. seas.):					986	Perc.:	0.17
		Tot. points (incl. earl. seas.):				6	- 2	Diff.:	-276
		Virtual rating:	986	+	-276				710
		Aver.rating:	986	Perc.:			0.17	Diff.:	-276
		TPR: