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Player:  Jaap de Jongh  Age: 70 KNDB-rating on 1-7-2023: 653 Highest KNDB-rating ever: 666 Average KNDB-rating all time: 625  Virtual KNDB-rating : 636 Strongest win in last 10 years by Jaap de Jongh (524): 04-11-2019 Piet Westerlaken (840) (Provincial Championship Teams Z-Holland Zuid) Weakest loss in last 10 years by Jaap de Jongh (607): 10-10-2022 Jorrit Roest (567) (Provincial Teamcompetition Z-Holland Zuid)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
mo 30-10-2023	Provincial Teamcompetition Z-Holland Zuid	Hemant Bhagwanie	896	1	-	1	-260	0.18	0.36
mo 04-12-2023	Provincial Teamcompetition Z-Holland Zuid	Jan van Krieken	967	1	-	0	-331	0.12	0.25
tu 30-01-2024	Provincial Teamcompetition Z-Holland Zuid	Bas Piepers	811	1	-	0	-175	0.27	0.54
we 17-04-2024	Provincial Teamcompetition Z-Holland Zuid	Coen Westerveen	742	1	-	0	-106	0.36	0.71
		Total:		4	-	1			1.86
		Correctionfactor:		7.5	(22 g.)
		Calculation:
		Tot. aver. o-rating (incl. earl. seas.):					790	Perc.:	0.3
		Tot. points (incl. earl. seas.):				22	- 13	Diff.:	-154
		Virtual rating:	790	+	-154				636
		Aver.rating:	854	Perc.:			0.13	Diff.:	-329
		TPR: