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Player:  Piet de Boer  Age: 76 KNDB-rating on 1-7-2023: 925 Highest KNDB-rating ever: 933 Average KNDB-rating all time: 876  Virtual KNDB-rating : 921 Strongest win in last 10 years by Piet de Boer (903): 05-03-2020 Gerrit Baukema (1014) (Provincial Teamcompetition Friesland) Weakest loss in last 10 years by Piet de Boer (933): 29-11-2022 Gerard Weinans (684) (Provincial Teamcompetition Friesland)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
fr 27-10-2023	Provincial Teamcompetition Friesland	Jan Snijder	924	1	-	1	1	0.5	1
th 23-11-2023	Provincial Teamcompetition Friesland	Aart Robbertsen	853	1	-	1	72	0.6	1.2
fr 24-11-2023	Provincial Teamcompetition Friesland	Jan Algra	1261	1	-	0	-336	0.12	0.24
fr 08-12-2023	Provincial Teamcompetition Friesland	Albert van Keimpema	893	1	-	1	32	0.54	1.09
mo 08-01-2024	Provincial Teamcompetition Friesland	Bouke van der Werff	901	1	-	1	24	0.53	1.07
		Total:		5	-	4			4.6
		Correctionfactor:		7.5	(83 g.)
		Calculation:		4	-	4.6 x		7.5=	-4.49
		Virtual rating:							921
		Aver.rating:	966	Perc.:			0.4	Diff.:	-72
		TPR: