Chess South Africa Ratings Database

PLAYER PAGE

Personal

Karsas, S (Sophia)

Chess SA id

2140301262

FIDE id

Date of birth

2014-03-05 (U12)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-16

Personal details last changed

1900-01-01

Junior GPX Games

58.6

Junior GPX Points

1141.4

Item	Main	Standard	Rapid	Blitz
Rating	1328.5	1312	1121.7	1200
Raw rating	1232.1	1244.2	1100.9	1200
Weighted rating	1148.8	1151.8	1121.7	1200
Weighted performance	1328.5	1312	1004.8	0
Floor	732.1	744.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.4	155.7	191	165.8
Highest rating	1328.5 2025-09-30	1312 2025-09-30	1200 2024-11-01	1200 2024-04-01
Highest raw rating	1232.1 2025-09-30	1244.2 2025-09-30	1200 2024-03-01	1200 2024-04-01
Highest weighted rating	1200 2024-11-01	1200 2024-04-01	1200 2024-11-01	1200 2024-04-01
Highest weighted performance	1328.5 2025-09-30	1312 2025-09-30	1200 2024-12-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	15.1	-2.5	0
New rating	1328	1327.1	1119.2	1200
Analysis
Rating	1328.5	1312	1121.7	1200
Raw rating	1232.1	1244.2	1100.9	1200
Weighted rating	1148.8	1151.8	1121.7
Weighted performance	1328.5	1312	1004.8
K-factor	36	36	36	36
Floor	732.1	744.2	700	700
Max/Min rating change allowed	158.4	155.7	191	165.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1232.1	1244.2	1100.9	1200
New weighted rating	1155.4	1159.2	1119.2	1200
New weighted performance	1328	1327.1	1004.4	0
Temp new rating	1328	1327.1	1119.2	1200
Temp new rating +/-	-0.5	15.1	-2.5	0
Final new rating +/-	-0.5	15.1	-2.5	0
New rating	1328	1327.1	1119.2	1200
New K-factor	36	36	36	36
New floor	732.1	744.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	59	43	16
	64	42	22
	0	0	0
	0	0	0
	0	0	0
History	123	85	38

Games since
	Main 123	Standard 85		Rapid 38		Blitz 0
Gender	Female
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2902		978		151
Female	569		191		34
U12	437		147		23
U12 Female	120		43		5
Standard
	RSA		Province		Region
Overall	2941		1055		141
Female	600		208		27
U12	428		159		23
U12 Female	118		46		6
Rapid
	RSA		Province		Region
Overall	1866		302		105
Female	458		74		46
U12	358		45		24
U12 Female	120		19		11
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	59	23.5	39.83	-86.4	1294	1207.6
Standard	43	18.5	43.02	-59.3	1288.7	1229.4
Rapid	16	5	31.25	-159.4	1308.4	1149
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	123	43.5	35.37	-124.4	1256.6	1132.2
Standard	85	30	35.29	-125	1262.6	1137.6
Rapid	38	13.5	35.53	-123	1243.3	1120.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1232.1	1244.2	1100.9	1200
2025-09-01	1203.4	1226.2	1100.9	1200
2025-08-01	1179.2	1175.6	1143.6	1200
2025-07-01	1179.2	1175.6	1143.6	1200
2025-06-01	1173.7	1175.6	1136.2	1200
2025-05-01	1170.8	1173	1136.2	1200
2025-04-01	1128.4	1129.8	1131.3	1200
2025-03-01	1129.1	1130.3	1131.3	1200
2025-02-01	1126.4	1127.2	1130.9	1200
2025-01-01	1035.2	1024.4	1100.8	1200
2024-12-01	1076.2	1068	1100.8	1200
2024-11-01	1076.2	1068	1100.8	1200
2024-10-01	1123.3	1121.6	1100.8	1200
2024-09-01	1146.2	1151.6	1100.8	1200
2024-08-01	1146.2	1151.6	1100.8	1200
2024-07-01	1086.1	1082.4	1100.8	1200
2024-06-01	1104.3	1118	1100.8	1200
2024-08-01	1104.3	1118	1100.8	1200
2024-04-01	1158.5	1200	1100.8	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
2	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
3	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
4	Ekurhuleni North Chess Club Open Tournament 2025 (D)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
5	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	1	Yes	Analysis
6	Ekurhuleni Trials 2025 (F)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
7	Chess Power House Youth Day Rapid 2025 (C)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
9	Chess Molecules Open Tournament 2025 (C)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
10	Benoni Primary School Cluster 12 April 2025 (U11 Girls)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	Ekurhuleni Chess Open 2025 (D)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
12	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
2	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
3	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
4	Ekurhuleni North Chess Club Open Tournament 2025 (D)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
5	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	1	Yes	Analysis
6	Ekurhuleni Trials 2025 (F)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
7	Chess Power House Youth Day Rapid 2025 (C)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
8	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
9	Chess Molecules Open Tournament 2025 (C)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
10	Benoni Primary School Cluster 12 April 2025 (U11 Girls)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	Ekurhuleni Chess Open 2025 (D)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
12	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
13	Gauteng Inter-Region at UJ 2024 (U12 Girls)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
14	CPH Boksburg Open 2024 (C)	2024-10-26	2024-10-26	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
15	Ekurhuleni North Chess Club Open Tournament 2024 (D)	2024-08-09	2024-08-09	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
16	Ekurhuleni Trails 2 2024 (U12)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
17	EN Chess Club Winter Open 2024 (D)	2024-06-29	2024-06-29	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
18	Chess Power House June Open 2024 (D)	2024-06-23	2024-06-23	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
19	Ekurhuleni Trails 1 2024 (U12)	2024-06-01	2024-06-01	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
20	JCC King David Linksfield Rapid 2024 (C)	2024-04-21	2024-04-21	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
21	Westwood Open 2024 (C)	2024-04-13	2024-04-13	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
22	Ekurhuleni Open 2024 (D)	2024-04-06	2024-04-06	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
23	Ekurhuleni North Chess Club Open Tournament 2024 (E)	2024-03-02	2024-03-02	Rapid	Ehlanzeni (MEN)	7	7	3	Yes	Analysis
24	CPH St Andrew's Rapid 2024 (C)	2024-03-30	2024-03-30	Rapid	Ekurhuleni (GE)	5	5	1	Yes	Analysis
25	Benoni Primary School Cluster Individuals 2024 (U11 Girls)	2024-03-09	2024-03-09	Rapid	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament East Rand Chess Club Open 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-09	rnd 4	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Beaton, M (Miah)				Opponent Smith, D (Deone)
2	3	Tournament Ekurhuleni Trials 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-05-24	rnd 5	type Standard	result 1	date 2025-06-16	rnd 2	type Rapid	result 1
		Opponent Cheng, A (Abigail)				Opponent Mpye, K (Karabo)
3	3	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 1	type Rapid	result 0.5	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Pretorius, A (Amore)				Opponent Theron, M (Milea)

#	Games	Start				End
1	4	Tournament East Rand Chess Club Open 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-09	rnd 4	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Beaton, M (Miah)				Opponent Smith, D (Deone)
2	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Witt, T (Tiara-Lee)				Opponent Mashita, B (Bohlale)
3	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Reveni, A (Amani)				Opponent Lin, J (Jasmine)

#	Games	Start				End
1	3	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 1	type Rapid	result 0.5	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Pretorius, A (Amore)				Opponent Theron, M (Milea)
2	2	Tournament Chess Power House Youth Day Rapid 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-06-16	rnd 1	type Rapid	result 1	date 2025-06-16	rnd 2	type Rapid	result 1
		Opponent Bestbier, L (Leane)				Opponent Mpye, K (Karabo)
3	2	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 2	type Rapid	result 1	date 2025-04-19	rnd 3	type Rapid	result 1
		Opponent Prasad, A (Aahaan)				Opponent Chetty, C (Carter)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Ekurhuleni Trials 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-05-24	rnd 5	type Standard	result 1	date 2025-06-16	rnd 2	type Rapid	result 1
		Opponent Cheng, A (Abigail)				Opponent Mpye, K (Karabo)
2	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Witt, T (Tiara-Lee)				Opponent Mashita, B (Bohlale)
3	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Makofane, O (Ofentse)				Opponent Smith, D (Deone)

#	Games	Start				End
1	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-16	rnd 5	type Standard	result 1
		Opponent De Witt, T (Tiara-Lee)				Opponent Mashita, B (Bohlale)
2	2	Tournament Ekurhuleni North Schools Teams 2025				Tournament Ekurhuleni North Schools Teams 2025
		date 2025-08-16	rnd 1	type Standard	result 1	date 2025-08-16	rnd 2	type Standard	result 1
		Opponent Makofane, O (Ofentse)				Opponent Smith, D (Deone)
3	2	Tournament Benoni Primary School Cluster 12 April 2025				Tournament Benoni Primary School Cluster 12 April 2025
		date 2025-04-12	rnd 3	type Standard	result 1	date 2025-04-12	rnd 4	type Standard	result 1
		Opponent Reveni, A (Amani)				Opponent Lin, J (Jasmine)

#	Games	Start				End
1	2	Tournament Chess Power House Youth Day Rapid 2025				Tournament Chess Power House Youth Day Rapid 2025
		date 2025-06-16	rnd 1	type Rapid	result 1	date 2025-06-16	rnd 2	type Rapid	result 1
		Opponent Bestbier, L (Leane)				Opponent Mpye, K (Karabo)
2	2	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 2	type Rapid	result 1	date 2025-04-19	rnd 3	type Rapid	result 1
		Opponent Prasad, A (Aahaan)				Opponent Chetty, C (Carter)
3	2	Tournament Benoni Primary School Cluster Individuals 2024				Tournament Benoni Primary School Cluster Individuals 2024
		date 2024-03-09	rnd 2	type Rapid	result 1	date 2024-03-09	rnd 3	type Rapid	result 1
		Opponent Erasmus, L (Liane)				Opponent Theron, M (Milea)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Mendonca ,N (Nelita)	7	2	-182.1	6	2	-141.7	1	0	-425	0	0	0
1	Mendonca ,N (Nelita)	7	1293.2	1111	6	1293.8	1151.5	1	1230.9	868.2	0	0	0
2	Khumalo ,ME (Musawenkosi Ethan)	6	0	-425	6	0	-425	0	0	0	0	0	0
2	Khumalo ,ME (Musawenkosi Ethan)	6	1364.6	939.6	6	1361.4	939.6	0	0	0	0	0	0
3	Beaton ,M (Miah)	6	4	141.7	4	3	212.5	2	1	0	0	0	0
3	Beaton ,M (Miah)	6	1239.9	1381.6	4	1270.1	1452.4	2	1200	1239.9	0	0	0
4	Venter ,L (Luan)	5	0	-425	4	0	-425	1	0	-425	0	0	0
4	Venter ,L (Luan)	5	1354.2	929.2	4	1320.8	929.2	1	1258.8	929.2	0	0	0
5	Sardinha ,S (Seveano)	4	1	-212.5	2	1	0	2	0	-425	0	0	0
5	Sardinha ,S (Seveano)	4	1189.9	977.4	2	1166.4	1189.9	2	1211.1	764.9	0	0	0
6	De Villiers ,A (Aryan Connor)	3	3	425	3	3	425	0	0	0	0	0	0
6	De Villiers ,A (Aryan Connor)	3	1201	1626	3	1192.9	1626	0	0	0	0	0	0
7	Mendonca ,M (Mark)	3	0	-425	3	0	-425	0	0	0	0	0	0
7	Mendonca ,M (Mark)	3	1367.9	942.9	3	1366.6	942.9	0	0	0	0	0	0
8	Van Dyk ,TM (Tayla Mila)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Van Dyk ,TM (Tayla Mila)	2	1363.3	938.3	2	1352.3	938.3	0	0	0	0	0	0
9	Jordaan ,M (Mikijl)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Jordaan ,M (Mikijl)	2	1310.2	885.2	2	1323.8	885.2	0	0	0	0	0	0
10	Potgieter ,L (Lienke)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Potgieter ,L (Lienke)	2	1161.6	736.6	2	1150.2	736.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Karsas, S (Sophia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms