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Player:  Arie Roos  Age: 60
KNDB-rating on 1-7-2023: 900
Highest KNDB-rating ever: 906
Average KNDB-rating all time: 860 
Virtual KNDB-rating : 900 Toernooibase Dammen

Strongest win in last 10 years by
Arie Roos (899):
08-11-2022 Fred Wortel (1092)
(Provincial Teamcompetition Utrecht)
Toernooibase Dammen Weakest loss in last 10 years by
Arie Roos (896):
18-03-2015 Jaap Langerak (843)
(Provincial Championship 1st class Utrecht)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
tu 19-09-2023  Provincial Teamcompetition Utrecht  Hennie van Lambalgen  829 1-171 0.6 1.2
tu 03-10-2023  Provincial Teamcompetition Utrecht  Hans Vermeij  765 1-1135 0.68 1.36
tu 17-10-2023  Provincial Teamcompetition Utrecht  Ed Kok  1139 1-0-239 0.2 0.4
tu 24-10-2023  Provincial Teamcompetition Utrecht  Hans Verhoeven  872 1-228 0.54 1.08
mo 06-11-2023  Provincial Teamcompetition Utrecht  Lucien Farzan  1085 1-1-185 0.26 0.52
tu 05-12-2023  Provincial Teamcompetition Utrecht  Harry Vredeveldt  805 1-195 0.63 1.26
tu 06-02-2024  Provinciale Bekercompetitie Utrecht  Alfons Ottink  1332 1-0-432 0.07 0.13
 Total:7-65.95
 Correctionfactor:5 (177 g.)
 Calculation:6-5.95 x5=0.25
 Virtual rating: 900
 Aver.rating: 975 Perc.:0.43Diff.: -51
 TPR: