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Player:  Ysbrand Walstra  Age: 71 KNDB-rating on 1-7-2023: 699 Highest KNDB-rating ever: 745 Average KNDB-rating all time: 690  Virtual KNDB-rating : 702 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
we 17-01-2024	Frisian championship seniors DCH Heerenveen - Mildam	Gerrit Reitsma	960	1	-	1	-261	0.18	0.36
we 24-01-2024	Frisian championship seniors DCH Heerenveen - Mildam	Jan Peters	952	1	-	2	-253	0.19	0.38
we 31-01-2024	Frisian championship seniors DCH Heerenveen - Mildam	Gaele Stoker	1087	1	-	0	-388	0.09	0.17
we 07-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Iepie Poepjes-Koopman	947	1	-	0	-248	0.19	0.39
we 14-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Geert Rozenberg	860	1	-	0	-161	0.29	0.57
we 21-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Klaas Mondria	821	1	-	0	-122	0.33	0.67
we 28-02-2024	Frisian championship seniors DCH Heerenveen - Mildam	Rika van Leeuwen	637	1	-	2	62	0.59	1.17
we 06-03-2024	Frisian championship seniors DCH Heerenveen - Mildam	Tabe de Vries	844	1	-	0	-145	0.31	0.61
		Total:		8	-	5			4.32
		Correctionfactor:		5	(153 g.)
		Calculation:		5	-	4.32 x		5=	3.38
		Virtual rating:							702
		Aver.rating:	889	Perc.:			0.31	Diff.:	-140
		TPR: