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Player:  Ysbrand Walstra  Age: 71 KNDB-rating on 1-7-2024: 702 Highest KNDB-rating ever: 745 Average KNDB-rating all time: 689  Virtual KNDB-rating : 0 Strongest win in last 10 years by Ysbrand Walstra (699): 24-01-2024 Jan Peters (952) (Frisian championship seniors DCH Heerenveen - Mildam) Weakest loss in last 10 years by Ysbrand Walstra (745): 06-03-2019 Jan Tuintjer (612) (FK 50-65 plus DCH Heerenveen - Mildam)

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: