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Player:  Douwe Walta  Age: 77
KNDB-rating on 1-7-2023: 671
Highest KNDB-rating ever: 709
Average KNDB-rating all time: 657 
Virtual KNDB-rating : 678 Toernooibase Dammen

Strongest win in last 10 years by
Douwe Walta (662):
12-01-2017 Dirk van Roozelaar (893)
(Provincial Teamcompetition Overijssel)
Toernooibase Dammen Weakest loss in last 10 years by
Douwe Walta (698):
05-11-2018 Wim Slendebroek (601)
(Provincial Teamcompetition Overijssel)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
th 07-09-2023  Clubcompetition DC Dronten  Bert Schoonhoven  782 1-1-111 0.35 0.7
fr 15-09-2023  Clubcompetition DC Dronten  Gabi Maduro  976 1-0-305 0.14 0.29
fr 06-10-2023  Clubcompetition DC Dronten  Siep Hamster  952 1-0-281 0.16 0.33
fr 20-10-2023  Clubcompetition DC Dronten  Joop Kip  1010 1-0-339 0.12 0.24
fr 10-11-2023  Clubcompetition DC Dronten  Aart Hanekamp  705 1-0-34 0.45 0.9
mo 20-11-2023  Provincial Teamcompetition Overijssel  Harm de Jong  799 1-1-128 0.33 0.65
fr 24-11-2023  Clubcompetition DC Dronten  Paul Kruik  742 1-1-71 0.4 0.8
fr 01-12-2023  Clubcompetition DC Dronten  Wim Broekman  966 1-0-295 0.15 0.3
th 14-12-2023  Provincial Teamcompetition Overijssel  Marcel Zandbergen  525 1-2146 0.7 1.39
th 11-01-2024  Clubcompetition DC Dronten  Anne Bouwer  782 1-2-111 0.35 0.7
th 18-01-2024  Clubcompetition DC Dronten  Aart Hanekamp  705 1-0-34 0.45 0.9
th 25-01-2024  Clubcompetition DC Dronten  Nico Maduro  853 1-1-182 0.26 0.52
fr 02-02-2024  Clubcompetition DC Dronten  Willem de Zwijger  831 1-0-160 0.29 0.58
tu 20-02-2024  Provincial Teamcompetition Overijssel  Albert-Jan Plakmeijer  639 1-132 0.54 1.09
fr 23-02-2024  Clubcompetition DC Dronten  Aart Hanekamp  705 1-1-34 0.45 0.9
fr 23-02-2024  Clubcompetition DC Dronten  Hennie de Ruijter  954 1-0-283 0.16 0.32
fr 01-03-2024  Clubcompetition DC Dronten  Wiebren de Vries  1022 1-0-351 0.11 0.22
fr 08-03-2024  Clubcompetition DC Dronten  Aart Hanekamp  705 1-2-34 0.45 0.9
fr 05-04-2024  Clubcompetition DC Dronten  Siep Hamster  952 1-0-281 0.16 0.33
fr 12-04-2024  Clubcompetition DC Dronten  Joop Kip  1010 1-0-339 0.12 0.24
fr 26-04-2024  Clubcompetition DC Dronten  Paul Kruik  742 1-2-71 0.4 0.8
 Total:21-1413.1
 Correctionfactor:7.5 (105 g.)
 Calculation:14-13.1 x7.5=6.72
 Virtual rating: 678
 Aver.rating: 827 Perc.:0.33Diff.: -123
 TPR: 827 +-123 704