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![]() Player: Gerwin Kolkman KNDB-rating on 1-7-2024: 0 Highest KNDB-rating ever: 1073 Average KNDB-rating all time: 996 Virtual KNDB-rating : 0 Strongest win in last 10 years by Gerwin Kolkman (1015): 11-06-2015 Gert Bosker (1222) (Summertournament Assen) Gerwin Kolkman (1027): 19-09-2015 Tom Westhof (932) (Dutch Teamcompetition KNDB) ![]() Toernooibaserating on 01-01-2010: 1013 D |