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Player:  Jan Houwing  Age: 70 KNDB-rating on 1-7-2023: 1223 Highest KNDB-rating ever: 1272 Average KNDB-rating all time: 1225  Virtual KNDB-rating : 0 Strongest win in last 10 years by Jan Houwing (1210): 28-10-2017 Stijn Tuijtel (1275) (Dutch Teamcompetition KNDB) Weakest loss in last 10 years by Jan Houwing (1211): 07-02-2015 Ruud Groot (1128) (Dutch Teamcompetition KNDB)  Highest Historical Toernooibaserating on 01-01-1989:  1380 D

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
		Correctionfactor:		7.5	( g.)
		Calculation:			-	0 x		7.5=	0
		Virtual rating:							0
		Aver.rating:	0	Perc.:			0.5	Diff.:	0
		TPR: