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

1664

Performance

 

Yes

Count for rating

OK

Analysis

TournamentHostTypeRndsStartRatingGmsScr%DpAORPRatKWeSWeRpmPRpmTRpmCFRReason
2017 South African Closed Chess Championships (Women) 11 2017/12/09 1555 11 5.5 50.0 0 1664.4 1664 25 4.00 1.50 37.5 0.0 37.5 OK

Opponents

RndDateOpponentRatingTitleFedColResWeSWeKRpmCFRReason
1 2017/12/09 Van Niekerk, RJ (Robyn) 1578 0 0.47 -0.47 25 -11.8 OK
2 2017/12/10 Frick, D (Denise) 1792 WIM 1 0.20 0.80 25 20.0 OK
3 2017/12/11 Grobbelaar, J (Jacqui) 1482 WPM 0 0.60 -0.60 25 -15.0 OK
4 2017/12/12 Van Zyl, C (Charlize) 1654 WIM ½ 0.36 0.14 25 3.5 OK
5 2017/12/13 Joubert, D (Dantelle) 1603 WFM ½ 0.43 0.07 25 1.8 OK
6 2017/12/14 February, JN (Jesse) 1856 WIM 0 0.15 -0.15 25 -3.8 OK
7 2017/12/15 Van Niekerk, MC (Megan) 1582 1 0.46 0.54 25 13.5 OK
8 2017/12/16 Oberholzer, M (Marni) 1563 ½ 0.49 0.01 25 0.3 OK
9 2017/12/17 Laubscher, A (Anzel) 1830 WIM 1 0.17 0.83 25 20.8 OK
10 2017/12/18 Fisher, M (Michelle) 1784 WCM 1 0.21 0.79 25 19.8 OK
11 2017/12/19 Marais, N (Nina) 1584 WUM 0 0.46 -0.46 25 -11.5 OK