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Player:  Ron Bolderheij  Age: 72
KNDB-rating on 1-7-2023: 883
Highest KNDB-rating ever: 971
Average KNDB-rating all time: 925 
Virtual KNDB-rating : 894 Toernooibase Dammen

Strongest win in last 10 years by
Ron Bolderheij (883):
14-10-2023 Henk Twijnstra (1135)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Ron Bolderheij (883):
17-02-2024 Dylan Jongeneel (915)
(Dutch Teamcompetition KNDB)

FMJD-rating: 1839
Highest FMJD-rating ever: 1832
Average FMJD-rating all time: 1779
(Graphics FMJD-rating in period
KNDB-rating)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 09-09-2023  Dutch Teamcompetition KNDB  Laura Ratniece  1081 1-0-198 0.24 0.49
sa 23-09-2023  Dutch Teamcompetition KNDB  Maurits Meijer  1126 1-1-243 0.2 0.4
sa 14-10-2023  Dutch Teamcompetition KNDB  Henk Twijnstra  1135 1-2-252 0.19 0.38
sa 18-11-2023  Dutch Teamcompetition KNDB  Eddy Fuzzally  978 1-1-95 0.37 0.74
sa 02-12-2023  Dutch Teamcompetition KNDB  Niels Roelofsen  1153 1-0-270 0.17 0.34
sa 20-01-2024  Dutch Teamcompetition KNDB  Arie van Genderen  1110 1-2-227 0.21 0.43
sa 03-02-2024  Dutch Teamcompetition KNDB  Edwin van Hofwegen  1188 1-0-305 0.14 0.29
sa 17-02-2024  Dutch Teamcompetition KNDB  Dylan Jongeneel  915 1-0-32 0.46 0.91
sa 02-03-2024  Dutch Teamcompetition KNDB  Daniëlla de Vos  1028 1-0-145 0.31 0.61
 Total:9-64.58
 Correctionfactor:7.5 (27 g.)
 Calculation:6-4.58 x7.5=10.65
 Virtual rating: 894
 Aver.rating: 1079 Perc.:0.33Diff.: -123
 TPR: