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Player:  Bertwin Letteboer  Age: 52 KNDB-rating on 1-7-2024: 1054 Highest KNDB-rating ever: 1056 Average KNDB-rating all time: 1012  Virtual KNDB-rating : 1052 Strongest win in last 10 years by Bertwin Letteboer (1042): 28-10-2021 Albert Eggink (1078) (Dutch Championship Cat. B KNDB) Weakest loss in last 10 years by Bertwin Letteboer (1042): 23-10-2021 Iepie Poepjes-Koopman (960) (Dutch Teamcompetition KNDB) FMJD-rating: 1979 Highest FMJD-rating ever: 1981 Average FMJD-rating all time: 1974 (Graphics FMJD-rating in period KNDB-rating)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 29-06-2024	Provincial Championship Overijssel	Gert Drent	921	1	-	1	133	0.68	1.36
		Total:		1	-	1			1.36
		Correctionfactor:		5	(125 g.)
		Calculation:		1	-	1.36 x		5=	-1.79
		Virtual rating:							1052
		Aver.rating:	921	Perc.:			0.5	Diff.:	0
		TPR: