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Player:  Roelof-Jan de Haan  Age: 58
KNDB-rating on 1-7-2023: 957
Highest KNDB-rating ever: 963
Average KNDB-rating all time: 912 
Virtual KNDB-rating : 967 Toernooibase Dammen

Strongest win in last 10 years by
Roelof-Jan de Haan (944):
27-10-2018 Roel de Vries (1147)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Roelof-Jan de Haan (960):
05-10-2019 Henk Pruim (912)
(Dutch Teamcompetition KNDB)

FMJD-rating: 1929
Highest FMJD-rating ever: 1920
Average FMJD-rating all time: 1899
(Graphics FMJD-rating in period
KNDB-rating)

 Highest Historical
Toernooibaserating on 01-01-2010:  864 D
     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 09-09-2023  Dutch Teamcompetition KNDB  Jay Amatmoestar  1043 1-1-86 0.38 0.76
sa 23-09-2023  Dutch Teamcompetition KNDB  Alie Beekman-van Duinen  1096 1-1-139 0.31 0.63
sa 04-11-2023  Dutch Teamcompetition KNDB  Wim Dekker  1113 1-1-156 0.29 0.59
sa 18-11-2023  Dutch Teamcompetition KNDB  Fred van Amersfoort  1008 1-1-51 0.43 0.86
sa 02-12-2023  Dutch Teamcompetition KNDB  Marthy van Houtert  1114 1-1-157 0.29 0.58
sa 06-01-2024  Dutch Teamcompetition KNDB  Arend Dijkstra  985 1-0-28 0.46 0.92
sa 20-01-2024  Dutch Teamcompetition KNDB  Juri Geisenblas  1145 1-1-188 0.26 0.51
sa 03-02-2024  Dutch Teamcompetition KNDB  Aize Plantinga  1076 1-1-119 0.34 0.68
sa 17-02-2024  Dutch Teamcompetition KNDB  Douwe Edelenbos  1258 1-1-301 0.15 0.29
sa 02-03-2024  Dutch Teamcompetition KNDB  Fokke Smid  923 1-134 0.55 1.1
sa 16-03-2024  Dutch Teamcompetition KNDB  Antonio Ramirez  956 1-11 0.5 1
 Total:11-107.92
 Correctionfactor:5 (327 g.)
 Calculation:10-7.92 x5=10.42
 Virtual rating: 967
 Aver.rating: 1065 Perc.:0.45Diff.: -32
 TPR: 1065 +-32 1033