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Player:  Jan Lammers  Age: 73
KNDB-rating on 1-7-2023: 1173
Highest KNDB-rating ever: 1191
Average KNDB-rating all time: 1166 
Virtual KNDB-rating : 1173 Toernooibase Dammen

Strongest win in last 10 years by
Jan Lammers (1169):
28-01-2017 Steven den Hollander (1252)
(Semi finals Dutch Championship KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Jan Lammers (1191):
16-04-2018 Barbara Graas (1010)
(Dutch Open Championship veterans WSDV Wageningen)

FMJD-rating: 2066
Highest FMJD-rating ever: 2075
Average FMJD-rating all time: 2063
(Graphics FMJD-rating in period
KNDB-rating)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 09-09-2023  Dutch Teamcompetition KNDB  Marco de Koning  1196 1-1-23 0.47 0.94
sa 23-09-2023  Dutch Teamcompetition KNDB  Kees Pippel  1319 1-0-146 0.3 0.61
sa 14-10-2023  Dutch Teamcompetition KNDB  Guido Verhagen  1231 1-0-58 0.42 0.84
we 18-10-2023  Open Championship of ADG Amersfoort  Alexander Shvartsman  1564 1-0-391 0.09 0.17
we 18-10-2023  Open Championship of ADG Amersfoort  Lennart Bolks  842 1-1331 0.88 1.75
th 19-10-2023  Open Championship of ADG Amersfoort  Gerrit de Bruijn  1227 1-1-54 0.43 0.85
th 19-10-2023  Open Championship of ADG Amersfoort  Fabian Snijder  1157 1-116 0.52 1.04
fr 20-10-2023  Open Championship of ADG Amersfoort  Leo van der Laan  1161 1-212 0.52 1.03
fr 20-10-2023  Open Championship of ADG Amersfoort  Jan van de Veen  1139 1-134 0.55 1.1
sa 21-10-2023  Open Championship of ADG Amersfoort  Cor Westerveld  1190 1-1-17 0.48 0.95
sa 04-11-2023  Dutch Teamcompetition KNDB  Bram Kole jr.  994 1-2179 0.73 1.47
sa 18-11-2023  Dutch Teamcompetition KNDB  Bert Verton  1063 1-2110 0.65 1.3
sa 02-12-2023  Dutch Teamcompetition KNDB  Mari van Ballegooijen  1268 1-1-95 0.37 0.74
sa 20-01-2024  Dutch Teamcompetition KNDB  Rik Verboon  1374 1-0-201 0.24 0.48
sa 03-02-2024  Dutch Teamcompetition KNDB  Gé Berbee  915 1-2258 0.82 1.63
sa 02-03-2024  Dutch Teamcompetition KNDB  Fabian Snijder  1157 1-116 0.52 1.04
 Total:16-1615.95
 Correctionfactor:5 (433 g.)
 Calculation:16-15.95 x5=0.23
 Virtual rating: 1173
 Aver.rating: 1175 Perc.:0.5Diff.: 0
 TPR: 1175 +0 1175