CHESS SA Ratings Database

Player tournament rating analysis

Player

Grobbelaar, J (Jacqui)

[294011237] from Tshwane (GTP)
1538

Rating

Standard

+21.5

Rating change

K = 25.0

1709

Performance

 

Yes

Count for rating

OK

Full Analysis

Item Desctiption
Tournament 2017 Arnold Classic (Gauteng Closed)
Grand Prix tournament
Tournament format Swiss
Rating type Standard
National/FIDE rated National
Host region Tshwane (GTP)
Tournament id 20170880
Tournament group id 20170876
Start 2017/05/03
End 2017/05/07
Rated 2017/05/16
Rating 1538
Rated games 7
Rated score 3.0
Rated percent 42.9
Rated Dp -50
Rated average opponent rating 1759.14
Rated performance 1709
Rated expected score (We) 2.14
Rated score difference (Score-We) 0.86
K-factor 25.0
Temporary rating change 21.5
Penalties 0.0
TOTAL RATING CHANGE 21.5
Count for rating OK
Total rated games with White and Black 0
Default wins 0
Default losses (possible penalties) 0
Byes 0
Tournament rank 9
Final position (single) 8
Final position (shared) 6

Opponents

RndDateOpponentRatingTitleFedColResWeSWeKRpmCFRReason
1 2017/05/03 Mfundisi, S (Sandile) 1757 1 0.22 0.78 25.0 19.5 OK
2 2017/05/04 Jere, D (Daniel) 2274* 0 0.00 0.00 25.0 0.0 OK
3 2017/05/05 Nelson, WJH (William) 1839 0 0.15 -0.15 25.0 -3.8 OK
4 2017/05/06 Klevansky, A (Aron) 1780 CM ½ 0.20 0.30 25.0 7.5 OK
5 2017/05/06 Laureles, R (Raymundo) 1325 0 0.77 -0.77 25.0 -19.3 OK
6 2017/05/07 Marx, I (Inge) 1591 WIM 1 0.43 0.57 25.0 14.3 OK
7 2017/05/07 Jacobs, CL (Cavan) 1632 ½ 0.37 0.13 25.0 3.3 OK