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Player:  Gerrit Valkenburg  Age: 75
KNDB-rating on 1-7-2023: 974
Highest KNDB-rating ever: 1190
Average KNDB-rating all time: 1014 
Virtual KNDB-rating : 969 Toernooibase Dammen

Strongest win in last 10 years by
Gerrit Valkenburg (974):
05-10-2018 Arjan van Galen (1281)
(Provincial Teamcompetition Gelderland)
Toernooibase Dammen Weakest loss in last 10 years by
Gerrit Valkenburg (981):
29-11-2022 Henry Kieft (902)
(Provincial Teamcompetition Gelderland)

FMJD-rating: 1884
Highest FMJD-rating ever: 1884
Average FMJD-rating all time: 1879
(Graphics FMJD-rating in period
KNDB-rating)

 Highest Historical
Toernooibaserating on 01-01-1988:  1121 D
     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
th 19-10-2023  Provincial Teamcompetition Gelderland  Dick Beking  1106 1-1-132 0.32 0.64
tu 07-11-2023  Provincial Teamcompetition Gelderland  Henry Kieft  911 1-163 0.59 1.17
tu 12-12-2023  Provincial Teamcompetition Gelderland  Theo Schoofs  1118 1-0-144 0.31 0.61
th 11-01-2024  Provincial Teamcompetition Gelderland  Henk Bracht  878 1-296 0.63 1.26
th 18-01-2024  Provincial Teamcompetition Gelderland  Jakob de Vries  958 1-116 0.52 1.04
tu 30-01-2024  Provincial Teamcompetition Gelderland  Arnout Mossink  1005 1-1-31 0.46 0.91
th 29-02-2024  Provincial Teamcompetition Gelderland  Jozef Linssen  1055 1-0-81 0.39 0.78
mo 11-03-2024  Provincial Teamcompetition Gelderland  Jan Aalderink  888 1-186 0.62 1.24
 Total:8-77.67
 Correctionfactor:7.5 (111 g.)
 Calculation:7-7.67 x7.5=-5
 Virtual rating: 969
 Aver.rating: 990 Perc.:0.44Diff.: -45
 TPR: