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Player:  Hans Berkers 
Age: 77
KNDB-rating on 1-7-2020: 1203
Highest KNDB-rating ever: 1333
Average KNDB-rating all time: 1242 
Virtual KNDB-rating : 1197
     .
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 19-09-2020  Dutch Teampcompetition KNDB  Harry Velraeds  1129 1-174 0.6 1.2
sa 03-10-2020  Dutch Teampcompetition KNDB  Gerrit de Bruijn  1221 1-0-18 0.47 0.95
 Total:2-12.15
 Correctionfactor:5 (268 g.)
 Calculation:1-2.15 x5=-5.77
 Virtual rating: 1197
 Aver.rating: 1175 Perc.:0.25Diff.: -193
 TPR:
* official KNDB-rating can be not the same as virtual rating because of new iRp-check