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Player:  Auke Koopmans  Age: 43 KNDB-rating on 1-7-2023: 930 Highest KNDB-rating ever: 930 Average KNDB-rating all time: 893  Virtual KNDB-rating : 906 Strongest win in last 10 years by Auke Koopmans (874): 07-01-2016 Siep Altena (982) (Provincial Teamcompetition Friesland) Weakest loss in last 10 years by Auke Koopmans (922): 18-10-2019 Lauran Rijk (882) (Provincial Teamcompetition Friesland)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
fr 20-10-2023	Provincial Teamcompetition Friesland	Jelle Jongsma	938	1	-	1	-8	0.49	0.98
tu 07-11-2023	Provincial Teamcompetition Friesland	Arnold Wiegersma	1006	1	-	0	-76	0.4	0.79
fr 15-12-2023	Provincial Teamcompetition Friesland	Harm Terpstra	966	1	-	0	-36	0.45	0.9
fr 02-02-2024	Provincial Teamcompetition Friesland	Gerben de Wit	1228	1	-	0	-298	0.15	0.3
fr 16-02-2024	Provincial Cupcompetition Friesland	Jelle Jongsma	938	1	-	0	-8	0.49	0.98
th 22-02-2024	Provincial Teamcompetition Friesland	Anton Schotanus	1256	1	-	0	-326	0.13	0.25
		Total:		6	-	1			4.19
		Correctionfactor:		7.5	(96 g.)
		Calculation:		1	-	4.19 x		7.5=	-23.96
		Virtual rating:							906
		Aver.rating:	1055	Perc.:			0.08	Diff.:	-395
		TPR: