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Player:  Anne Piet Kooistra  Age: 56 KNDB-rating on 1-7-2023: 1277 Highest KNDB-rating ever: 1277 Average KNDB-rating all time: 1194  Virtual KNDB-rating : 1266 Strongest win in last 10 years by Anne Piet Kooistra (1247): 03-11-2022 Gabriël Heerema (1412) (Provincial Teamcompetition Friesland) Weakest loss in last 10 years by Anne Piet Kooistra (1277): 22-02-2024 Durk de Vries (1058) (Provincial Teamcompetition Friesland) FMJD-rating: 2137 Highest FMJD-rating ever: 2152 Average FMJD-rating all time: 2109 (Graphics FMJD-rating in period KNDB-rating)

Date	Tournament	Opponent	Rat	Ga		Pt	R.diff.	N.perc	N.pts
sa 09-09-2023	Dutch Teamcompetition KNDB	Fleur Kruysmulder	1141	1	-	2	136	0.68	1.37
sa 23-09-2023	Dutch Teamcompetition KNDB	Ton Bollebakker	1198	1	-	0	79	0.61	1.22
sa 14-10-2023	Dutch Teamcompetition KNDB	Ben Dekens	1044	1	-	1	233	0.79	1.59
mo 16-10-2023	Provincial Teamcompetition Friesland	Henk Stapert	1025	1	-	1	252	0.81	1.62
sa 04-11-2023	Dutch Teamcompetition KNDB	Niek Kloppenburg	1250	1	-	1	27	0.54	1.08
th 09-11-2023	Provincial Teamcompetition Friesland	Oege Dijkstra	1291	1	-	1	-14	0.48	0.96
sa 18-11-2023	Dutch Teamcompetition KNDB	Rene Beije	426	1	-	2	851	1	1.99
we 22-11-2023	Provincial Teamcompetition Friesland	Katrinus Posthumus	1191	1	-	2	86	0.62	1.24
sa 02-12-2023	Dutch Teamcompetition KNDB	Coen Bommel	1180	1	-	1	97	0.63	1.27
th 14-12-2023	Provincial Teamcompetition Friesland	Jappie de Vries	1179	1	-	1	98	0.63	1.27
sa 06-01-2024	Dutch Teamcompetition KNDB	Fred Elgersma	1164	1	-	1	113	0.65	1.31
th 11-01-2024	Provincial Teamcompetition Friesland	Marten Zijlstra	961	1	-	2	316	0.87	1.73
sa 20-01-2024	Dutch Teamcompetition KNDB	Peter Boonstra	1214	1	-	2	63	0.59	1.17
tu 30-01-2024	Provincial Teamcompetition Friesland	Linze Houwink	1145	1	-	2	132	0.68	1.36
sa 03-02-2024	Dutch Teamcompetition KNDB	Bert de Jong	1116	1	-	1	161	0.71	1.43
tu 13-02-2024	Provincial Cupcompetition Friesland	Douwe Edelenbos	1258	1	-	1	19	0.53	1.05
sa 17-02-2024	Dutch Teamcompetition KNDB	Joop Wind	1105	1	-	1	172	0.73	1.45
th 22-02-2024	Provincial Teamcompetition Friesland	Durk de Vries	1058	1	-	0	219	0.78	1.56
sa 02-03-2024	Dutch Teamcompetition KNDB	Marcel Monteba	1314	1	-	1	-37	0.45	0.9
th 07-03-2024	Provincial Cupcompetition Friesland	Anne Dekker	1034	1	-	2	243	0.8	1.6
		Total:		20	-	25			27.15
		Correctionfactor:		5	(600 g.)
		Calculation:		25	-	27.15 x		5=	-10.76
		Virtual rating:							1266
		Aver.rating:	1115	Perc.:			0.63	Diff.:	91
		TPR:	1115	+	91				1206