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Player:  Gerard de Groot  Age: 58
KNDB-rating on 1-7-2023: 1266
Highest KNDB-rating ever: 1288
Average KNDB-rating all time: 1231 
Virtual KNDB-rating : 1246 Toernooibase Dammen

Strongest win in last 10 years by
Gerard de Groot (1237):
19-09-2020 Mark Deurloo (1361)
(Dutch Teamcompetition KNDB)
Toernooibase Dammen Weakest loss in last 10 years by
Gerard de Groot (1252):
05-10-2019 Rinus Kromhout (1053)
(Dutch Teamcompetition KNDB)

FMJD-rating: 2162
Highest FMJD-rating ever: 2223
Average FMJD-rating all time: 2180
(Graphics FMJD-rating in period
KNDB-rating)

 Highest Historical
Toernooibaserating on 01-01-1988:  1251 D
     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 09-09-2023  Dutch Teamcompetition KNDB  Arie van de Weteringh Azn.  1370 1-1-104 0.36 0.72
tu 12-09-2023  Provincial Teamcompetition Zuid-Holland  Erik Maijenburg  1150 1-0116 0.66 1.32
sa 23-09-2023  Dutch Teamcompetition KNDB  Gera Hol  999 1-2267 0.82 1.65
sa 14-10-2023  Dutch Teamcompetition KNDB  Erik Maijenburg  1150 1-1116 0.66 1.32
sa 04-11-2023  Dutch Teamcompetition KNDB  Fabian Snijder  1157 1-1109 0.65 1.3
sa 18-11-2023  Dutch Teamcompetition KNDB  Johan Wiering  1367 1-0-101 0.36 0.72
tu 21-11-2023  Provincial Teamcompetition Zuid-Holland  Koos van Amerongen  1365 1-0-99 0.36 0.73
sa 02-12-2023  Dutch Teamcompetition KNDB  Jan-Maarten Koorn  965 1-2301 0.85 1.71
sa 06-01-2024  Dutch Teamcompetition KNDB  Marinus Willemsen  1116 1-1150 0.7 1.4
sa 17-02-2024  Dutch Teamcompetition KNDB  Viktoriya Motrichko  1373 1-1-107 0.35 0.71
tu 27-02-2024  Provincial Teamcompetition Zuid-Holland  Jan van der Star  1309 1-0-43 0.44 0.88
sa 02-03-2024  Dutch Teamcompetition KNDB  Jasper Hengefeld  1030 1-1236 0.8 1.59
th 07-03-2024  Provincial Teamcompetition Zuid-Holland  Steven den Hollander  1285 1-1-19 0.47 0.95
 Total:13-1114.98
 Correctionfactor:5 (518 g.)
 Calculation:11-14.98 x5=-19.90
 Virtual rating: 1246
 Aver.rating: 1203 Perc.:0.42Diff.: -55
 TPR: 1203 +-55 1148