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Player:  Jaap Oosterdijk  Age: 79
KNDB-rating on 1-7-2023: 648
Highest KNDB-rating ever: 741
Average KNDB-rating all time: 667 
Virtual KNDB-rating : 646 Toernooibase Dammen

Strongest win in last 10 years by
Jaap Oosterdijk (661):
01-12-2015 Jorn Kruit (720)
(Provincial Teamcompetition Friesland)
Toernooibase Dammen Weakest loss in last 10 years by
Jaap Oosterdijk (644):
29-01-2018 Albert Koops (503)
(Provincial Teamcompetition Friesland)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
mo 20-11-2023  Provincial Teamcompetition Friesland  Johannes van der Goot  998 1-0-350 0.11 0.22
 Total:1-00.22
 Correctionfactor:7.5 (97 g.)
 Calculation:0-0.22 x7.5=-1.65
 Virtual rating: 646
 Aver.rating: 823 Perc.:0.25Diff.: -193
 TPR: