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Player:  Jelmer Martens  Age: 57
KNDB-rating on 1-7-2023: 1111
Highest KNDB-rating ever: 1187
Average KNDB-rating all time: 1145 
Virtual KNDB-rating : 1137 Toernooibase Dammen

Strongest win in last 10 years by
Jelmer Martens (1134):
02-10-2021 Ton Bollebakker (1224)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Jelmer Martens (1140):
08-02-2017 Frits Stuger (933)
(Provincial Championship Utrecht)

FMJD-rating: 2036
Highest FMJD-rating ever: 2054
Average FMJD-rating all time: 2022
(Graphics FMJD-rating in period
KNDB-rating)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
mo 18-09-2023  Provincial Teamcompetition Utrecht  Ruud Klaarenbeek  1045 1-166 0.59 1.18
sa 23-09-2023  Dutch Teamcompetition KNDB  Frans van der Veer  996 1-1115 0.66 1.31
tu 03-10-2023  Provincial Teamcompetition Utrecht  Laurens Fijn van Draat  1367 1-0-256 0.19 0.37
sa 14-10-2023  Dutch Teamcompetition KNDB  Willem-Peter Berkelmans  1067 1-244 0.56 1.12
mo 23-10-2023  Provincial Teamcompetition Utrecht  Maarten Kolsloot  1171 1-2-60 0.42 0.83
sa 04-11-2023  Dutch Teamcompetition KNDB  Aroen Bholasingh  936 1-1175 0.73 1.46
th 09-11-2023  Provincial Teamcompetition Utrecht  Cees Kuijer  1105 1-26 0.51 1.02
sa 18-11-2023  Dutch Teamcompetition KNDB  Haitze Meurs  1028 1-283 0.61 1.23
mo 20-11-2023  Provincial Teamcompetition Utrecht  Cock van Wijk  1212 1-1-101 0.36 0.72
sa 02-12-2023  Dutch Teamcompetition KNDB  Hans Berkers  1182 1-1-71 0.4 0.8
tu 05-12-2023  Provincial Teamcompetition Utrecht  Cees Strooper  1284 1-1-173 0.27 0.54
sa 06-01-2024  Dutch Teamcompetition KNDB  Jur van Ginkel  962 1-2149 0.7 1.4
sa 20-01-2024  Dutch Teamcompetition KNDB  Jan Jacobs  1168 1-1-57 0.42 0.84
sa 17-02-2024  Dutch Teamcompetition KNDB  Andy Damen  1111 1-10 0.5 1
sa 02-03-2024  Dutch Teamcompetition KNDB  Harry Verdoolaege  1174 1-1-63 0.41 0.83
mo 11-03-2024  Provinciale Bekercompetitie Utrecht  Wim Vlooswijk  1056 1-155 0.58 1.15
tu 23-04-2024  Provinciale Bekercompetitie Utrecht  Bert Habets  1128 1-2-17 0.48 0.95
 Total:17-2216.77
 Correctionfactor:5 (377 g.)
 Calculation:22-16.77 x5=26.15
 Virtual rating: 1137
 Aver.rating: 1117 Perc.:0.65Diff.: 108
 TPR: 1117 +108 1225