CHESS SA Ratings Database

Player tournament rating analysis

Player

Van Der Westhuizen, D (Donald)

[101039600] from Tshwane (GTP)
1555

Rating

Standard

-3.5

Rating change

K = 25.0

1574

Performance

 

Yes

Count for rating

OK

Full Analysis

Item Desctiption
Tournament JCC Wits 2017 (A)
Grand Prix tournament
Tournament format Swiss
Rating type Standard
National/FIDE rated National
Host region Johannesburg Metro (GJM)
Tournament id 20171869
Tournament group id 20171866
Start 2017/09/10
End 2017/09/10
Rated 2017/09/14
Rating 1555
Rated games 3
Rated score 1.0
Rated percent 40.0
Rated Dp -72
Rated average opponent rating 1646.00
Rated performance 1574
Rated expected score (We) 1.14
Rated score difference (Score-We) -0.14
K-factor 25.0
Temporary rating change -3.5
Penalties 0.0
TOTAL RATING CHANGE -3.5
Count for rating OK
Total rated games with White and Black 0
Default wins 0
Default losses (possible penalties) 0
Byes 0
Tournament rank 34
Final position (single) 28
Final position (shared) 28

Opponents

RndDateOpponentRatingTitleFedColResWeSWeKRpmCFRReason
1 2017/09/10 Mnguni, JD (Jakob) 2160 0 0.02 -0.02 25.0 -0.5 OK
2 2017/09/10 Govender, Y (Yaduvir) 1163* 1 0.92 0.08 25.0 2.0 OK
3 2017/09/10 Levy, D (Darren) 1778U 0 0.22 -0.22 25.0 -5.5 Unrated opp excluded
4 2017/09/10 Maraba, M (Mahlatse) 1339U 1 0.78 0.22 25.0 5.5 Unrated opp excluded
5 2017/09/10 Tlale, T (Tshepang) 1797 WIM 0 0.20 -0.20 25.0 -5.0 OK