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Player: 
 Andrew Tjon A Ong 
Age:
 57
Rating on 1-7-2019: 
 1302
Highest rating ever:
 1372
Average rating all time:
 1312
     .
DateTournamentOpponentRatGaPtR.diff.N.percN.pts
mo 08-07-2019  Bunschoten Open VPDB  Losseni Savané  1256 1-246 0.56 1.13
tu 09-07-2019  Bunschoten Open VPDB  Joop Briedé  929 1-2373 0.9 1.81
we 10-07-2019  Bunschoten Open VPDB  Henk Jonker  1092 1-2210 0.77 1.54
th 11-07-2019  Bunschoten Open VPDB  Jean Marc Ndjofang  1468 1-1-166 0.28 0.56
th 11-07-2019  Bunschoten Open VPDB  NDiaga Samb  1461 1-1-159 0.29 0.58
fr 12-07-2019  Bunschoten Open VPDB  Leopold Sekongo  1321 1-1-19 0.47 0.95
su 14-07-2019  RotterDamsOpen ZHDB  Hein van Winkel  1002 1-2300 0.85 1.71
mo 15-07-2019  RotterDamsOpen ZHDB  Berke Yiğittürk  1210 1-092 0.63 1.25
 Total:8-119.52
 Correctionfactor:5 (1948 g.)
 Calculation:11-9.52 x5=7.41
 Virtual rating: 1309
 Aver.rating: 1217 Perc.:0.69Diff.: 140
 TPR:
* official KNDB-rating can be not the same as virtual rating because of new iRp-check