CHESS SA Ratings Database

Player tournament rating analysis

Player

Modi, S (Sonia)

[203023610] from Johannesburg Metro (GJM)
1555

Rating

Standard

+37.5

Rating change

K = 25.0

1664

Performance

 

Yes

Count for rating

OK

Full Analysis

Item Desctiption
Tournament 2017 South African Closed Chess Championships (Women)
Grand Prix tournament
Tournament format Swiss
Rating type Standard
National/FIDE rated National
Host region Western Province (WP)
Tournament id 20172218
Tournament group id 20172215
Start 2017/12/09
End 2017/12/19
Rated 2017/12/19
Rating 1555
Rated games 11
Rated score 5.5
Rated percent 50.0
Rated Dp 0
Rated average opponent rating 1664.36
Rated performance 1664
Rated expected score (We) 4.00
Rated score difference (Score-We) 1.50
K-factor 25.0
Temporary rating change 37.5
Penalties 0.0
TOTAL RATING CHANGE 37.5
Count for rating OK
Total rated games with White and Black 0
Default wins 0
Default losses (possible penalties) 0
Byes 0
Tournament rank 11
Final position (single) 7
Final position (shared) 7

Opponents

RndDateOpponentRatingTitleFedColResWeSWeKRpmCFRReason
1 2017/12/09 Van Niekerk, RJ (Robyn) 1578 0 0.47 -0.47 25.0 -11.8 OK
2 2017/12/10 Frick, D (Denise) 1792 WIM 1 0.20 0.80 25.0 20.0 OK
3 2017/12/11 Grobbelaar, J (Jacqui) 1482 WPM 0 0.60 -0.60 25.0 -15.0 OK
4 2017/12/12 Van Zyl, C (Charlize) 1654 WIM ½ 0.36 0.14 25.0 3.5 OK
5 2017/12/13 Joubert, D (Dantelle) 1603 WFM ½ 0.43 0.07 25.0 1.8 OK
6 2017/12/14 February, JN (Jesse) 1856 WIM 0 0.15 -0.15 25.0 -3.8 OK
7 2017/12/15 Van Niekerk, MC (Megan) 1582 1 0.46 0.54 25.0 13.5 OK
8 2017/12/16 Oberholzer, M (Marni) 1563 ½ 0.49 0.01 25.0 0.3 OK
9 2017/12/17 Laubscher, A (Anzel) 1830 WIM 1 0.17 0.83 25.0 20.8 OK
10 2017/12/18 Fisher, M (Michelle) 1784 WCM 1 0.21 0.79 25.0 19.8 OK
11 2017/12/19 Marais, N (Nina) 1584 WUM 0 0.46 -0.46 25.0 -11.5 OK