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Player:  Jan Bosch  Age: 77
KNDB-rating on 1-7-2023: 873
Highest KNDB-rating ever: 1105
Average KNDB-rating all time: 931 
Virtual KNDB-rating : 869 Toernooibase Dammen

Strongest win in last 10 years by
Jan Bosch (899):
28-01-2016 Theo Slütter (959)
(Provincial Teamcompetition Gelderland)
Toernooibase Dammen Weakest loss in last 10 years by
Jan Bosch (899):
10-11-2015 Jan von Kann (630)
(Provincial Teamcompetition Gelderland)		     
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
th 28-09-2023  Provincial Teamcompetition Gelderland  Jur van Ginkel  962 1-0-89 0.38 0.76
 Total:1-00.76
 Correctionfactor:5 (189 g.)
 Calculation:0-0.76 x5=-3.78
 Virtual rating: 869
 Aver.rating: 918 Perc.:0.25Diff.: -193
 TPR: