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Player: 
 Harm Wiersma 
Age:
 65
Rating on 1-7-2018: 
 1522
Highest rating ever:
 1612
Average rating all time:
 1536
     .
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
sa 15-09-2018  Dutch Teamcompetition KNDB  Thijs van den Broek  1326 1-2196 0.75 1.51
sa 29-09-2018  Dutch Teamcompetition KNDB  Sven Winkel  1410 1-2112 0.65 1.3
sa 13-10-2018  Dutch Teamcompetition KNDB  Arwin Lammers  1184 1-2338 0.88 1.76
sa 27-10-2018  Dutch Teamcompetition KNDB  Johan Sterrenburg  1392 1-2130 0.68 1.35
sa 10-11-2018  Dutch Teamcompetition KNDB  GĂ©rard Jansen  1486 1-136 0.55 1.1
sa 24-11-2018  Dutch Teamcompetition KNDB  Pieter Steijlen  1422 1-2100 0.64 1.27
sa 08-12-2018  Dutch Teamcompetition KNDB  Zainal Palmans  1366 1-2156 0.71 1.41
sa 19-01-2019  Dutch Teamcompetition KNDB  Peter Kort  1256 1-2266 0.82 1.65
 Total:8-1511.36
 Correctionfactor:5 (444 g.)
 Calculation:15-11.36 x5=18.18
 Virtual rating: 1540
 Aver.rating: 1355 Perc.:0.94Diff.: 438
 TPR:
* official KNDB-rating can be not the same as virtual rating because of new iRp-check