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Player:  Tonnie van Ommen  Age: 86
KNDB-rating on 1-7-2023: 842
Highest KNDB-rating ever: 952
Average KNDB-rating all time: 876 
Virtual KNDB-rating : 835 Toernooibase Dammen

Strongest win in last 10 years by
Tonnie van Ommen (844):
23-11-2015 Dirk van Roozelaar (922)
(Provincial Teamcompetition Overijssel)
Toernooibase Dammen Weakest loss in last 10 years by
Tonnie van Ommen (849):
10-01-2015 Bennie Lawant (778)
(Dutch Teamcompetition KNDB)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
mo 13-11-2023  Provincial Teamcompetition Overijssel  Wim Slendebroek  560 1-2282 0.84 1.68
mo 18-12-2023  Provincial Teamcompetition Overijssel  Jan Veneman  854 1-1-12 0.48 0.97
tu 30-01-2024  Provincial Teamcompetition Overijssel  Harry Pierik  627 1-2215 0.77 1.55
mo 26-02-2024  Provincial Teamcompetition Overijssel  Gerard van der Meulen  782 1-060 0.58 1.17
mo 18-03-2024  Provincial Teamcompetition Overijssel  Eit Veenstra  832 1-010 0.51 1.03
 Total:5-56.39
 Correctionfactor:5 (197 g.)
 Calculation:5-6.39 x5=-6.93
 Virtual rating: 835
 Aver.rating: 731 Perc.:0.5Diff.: 0
 TPR: