Surname or Chess SA id..
Chess SA Region AOC

PLAYER PAGE

Sonja Gretffrath

2100149930
Eden (WEG)
Personal
Main rating
Rating 1313.7
K-factor 36
Floor 824.2
Highest 1394 (2023-03-01)
Min/Max +/- allowed 126
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 952.6
Final +/- 0
New Rating
()
Rating 1313.7
K-factor 36
Floor 824.2
Highest 1394 (2023-03-01)
Min/Max +/- allowed 125.8
Standard rating
Rating 1303.2
K-factor 36
Floor 841.3
Highest 1389.2 (2023-03-01)
Min/Max +/- allowed 126.6
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 952.6
Final +/- 0
New Rating
()
Rating 1303.2
K-factor 36
Floor 841.3
Highest 1389.2 (2023-03-01)
Min/Max +/- allowed 126.6
Rapid rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Blitz rating
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Change
()
Games 0
Score 0
We 0
SWe 0
Temp +/- 0
Penalties 0
Weight perform 0
Final +/- 0
New Rating
()
Rating 1200
K-factor 36
Floor 700
Highest 1200 (2018-10-01)
Min/Max +/- allowed 165.8
Rating Graph
Tournaments
No tournaments found.
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
# Tournament Type Start End Host Rounds Rating Games Score Perform Rat+/- Details
1 Top Schools 2023 (U13) Standard 2023-07-29 2023-07-29 Eden (WEG) 5 1347.9 4 1.5 1291.8 0 Details
2 Western Cape PS Individuals 2023 (U13 Girls) Standard 2023-05-05 2023-05-06 Cape Town (WCT) 6 1324.2 6 2 1160.4 0 Details
3 Eden Trails 1 2023 (U13 Girls) Standard 2023-03-11 2023-03-11 Eden (WEG) 5 1279.1 5 4 1529 0 Details
4 George Chess Trials 3 2023 (U13 Girls) Standard 2023-02-25 2023-02-25 Eden (WEG) 5 1241.2 5 4 1553.6 0 Details
5 George Chess Trials 2 2023 (U13 Girls) Standard 2023-02-11 2023-02-11 Cape Town (WCT) 5 1241.2 5 2 1159.9 0 Details
6 George Topskole 2022 (O13) Standard 2022-07-30 2022-07-30 Eden (WEG) 5 1200 5 4 1417.9 0 Details
7 Eden Schools Closed Trials 1 2020 (U11 Girls) Standard 2020-03-07 2020-03-07 Eden (WEG) 5 1272.4 5 4 1509 0 Details
8 George Trial 3 2020 (U12) Standard 2020-02-22 2020-02-22 Eden (WEG) 5 1243 0 0 0 0 Details
9 George Trial 2 2020 (U12) Standard 2020-02-08 2020-02-08 Eden (WEG) 5 1243 5 4 1412.8 0 Details
10 George Trial 1 2020 (U12) Standard 2020-01-25 2020-01-25 Eden (WEG) 5 1220 5 3 1356.2 0 Details
11 Western Cape Schools Individuals 2019 (U9 Girls) Standard 2019-05-18 2019-05-19 Eden (WEG) 6 1236.4 6 3 1157.2 0 Details
12 Eden Trials 2 2019 (U10 Open) Standard 2019-04-13 2019-04-13 Eden (WEG) 5 1218.8 5 3 1311.3 0 Details
13 Eden Trials 1 2019 (U10 Open) Standard 2019-03-02 2019-03-02 Eden (WEG) 5 1224.8 5 2 1200.5 0 Details
14 George Trials 3 2019 (U10) Standard 2019-02-23 2019-02-23 Eden (WEG) 5 1200 4 2.5 1284 0 Details
15 George Trials 2 2019 (U10) Standard 2019-02-09 2019-02-09 Eden (WEG) 5 1200 5 3 1280.7 0 Details
Game statistics ( )
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics ()
Games 0
Wins 0
Draws 0
Losses 0
White 0
Black 0
White wins 0
Black wins 0
Score 0
Percent 0
Dp 0
AOR 0
Performance 0
Game statistics (History)
Games 70
Wins 41
Draws 2
Losses 27
White 38
Black 32
White wins 23
Black wins 18
Score 42
Percent 60
Dp 85
AOR 1241.6
Performance 1326.6
Rankings (Main)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Standard)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Rapid)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Rankings (Blitz)
National
Overall -1
Gender -1
Age group -1
Gender/Age -1
Provincial
Overall -1
Gender -1
Age group -1
Gender/Age -1
Regional
Overall -1
Gender -1
Age group -1
Gender/Age -1
Performance ( )
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance ()
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance (12 months)
Games 0
Score 0
Percent 0
Aor 0
Dp 0
Prat 0
Performance (History)
Games 70
Score 42
Percent 60
Aor 1241.6
Dp 85
Prat 1326.6
Top 5 opponents most often played
Type # Opponent Games White Black First tournament Last tournament Details
Overall 1 Douglas, C (Caitlin) 3 2 1 George Chess Trials 2 2023 (U13 Girls) Eden Trails 1 2023 (U13 Girls) Details
Overall 2 Gouws, G (Garlan) 3 2 1 Eden Schools Closed Trials 1 2020 (U11 Girls) George Chess Trials 3 2023 (U13 Girls) Details
Overall 3 Mpuru, M (Moyisi) 3 2 1 Eden Trails 1 2023 (U13 Girls) Top Schools 2023 (U13) Details
Overall 4 Booysen, L (Lukas) 2 0 2 Eden Trials 1 2019 (U10 Open) Top Schools 2023 (U13) Details
Overall 5 Van Zyl, C (Carli) 2 1 1 Eden Trials 1 2019 (U10 Open) Western Cape Schools Individuals 2019 (U9 Girls) Details
Standard 1 Douglas, C (Caitlin) 3 2 1 George Chess Trials 2 2023 (U13 Girls) Eden Trails 1 2023 (U13 Girls) Details
Standard 2 Gouws, G (Garlan) 3 2 1 Eden Schools Closed Trials 1 2020 (U11 Girls) George Chess Trials 3 2023 (U13 Girls) Details
Standard 3 Mpuru, M (Moyisi) 3 2 1 Eden Trails 1 2023 (U13 Girls) Top Schools 2023 (U13) Details
Standard 4 Booysen, L (Lukas) 2 0 2 Eden Trials 1 2019 (U10 Open) Top Schools 2023 (U13) Details
Standard 5 Kruger, R (Riasha) 2 0 2 Eden Schools Closed Trials 1 2020 (U11 Girls) George Chess Trials 3 2023 (U13 Girls) Details