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Player: 
 Harm Wiersma 
Age:
 66
Rating on 1-7-2019: 
 1540
Highest rating ever:
 1612
Average rating all time:
 1536
     .
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 05-10-2019  Dutch Teamcompetition KNDB  Macodou NDiaye  1492 1-148 0.57 1.13
sa 19-10-2019  Dutch Teamcompetition KNDB  Alexander Shvartsman  1540 1-10 0.5 1
 Total:2-22.13
 Correctionfactor:5 (455 g.)
 Calculation:2-2.13 x5=-0.67
 Virtual rating: 1539
 Aver.rating: 1516 Perc.:0.5Diff.: 0
 TPR:
* official KNDB-rating can be not the same as virtual rating because of new iRp-check