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Player:  Katarzyna Ptak  Age: 38
KNDB-rating on 1-7-2023: 955
Highest KNDB-rating ever: 980
Average KNDB-rating all time: 919 
Virtual KNDB-rating : 959 Toernooibase Dammen

Strongest win in last 10 years by
Katarzyna Ptak (825):
24-01-2015 Hilko Koning (1072)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Katarzyna Ptak (973):
09-11-2019 Joop de Graaf (823)
(Dutch Teamcompetition KNDB)

FMJD-rating: 1810
Highest FMJD-rating ever: 1848
Average FMJD-rating all time: 1790
(Graphics FMJD-rating in period
KNDB-rating)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 14-10-2023  Dutch Teamcompetition KNDB  Jay Amatmoestar  1043 1-1-88 0.38 0.76
sa 20-01-2024  Dutch Teamcompetition KNDB  Teun van Gelder  1050 1-1-95 0.37 0.74
 Total:2-21.5
 Correctionfactor:7.5 (93 g.)
 Calculation:2-1.5 x7.5=3.77
 Virtual rating: 959
 Aver.rating: 1047 Perc.:0.5Diff.: 0
 TPR: