Chess South Africa Ratings Database

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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

2025-08-29

Personal details last changed

1900-01-01

Junior GPX Games

68.6

Junior GPX Points

1167.5

Item	Main	Standard	Rapid	Blitz
Rating	1352.6	1350.6	1119.2	1200
Raw rating	1261.1	1276.9	1100.9	1200
Weighted rating	1157.7	1161.8	1119.2	1200
Weighted performance	1352.6	1350.6	993	0
Floor	761.1	776.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	152	148.6	191	165.8
Highest rating	1352.6 2025-11-01	1350.6 2025-11-01	1200 2024-11-01	1200 2024-04-01
Highest raw rating	1261.1 2025-11-01	1276.9 2025-11-01	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	1352.6 2025-11-01	1350.6 2025-11-01	1200 2024-12-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-12.6	-11.4	-2.1	0
New rating	1340	1339.2	1117.1	1200
Analysis
Rating	1352.6	1350.6	1119.2	1200
Raw rating	1261.1	1276.9	1100.9	1200
Weighted rating	1157.7	1161.8	1119.2
Weighted performance	1352.6	1350.6	993
K-factor	36	36	36	36
Floor	761.1	776.9	700	700
Max/Min rating change allowed	152	148.6	191	165.8
Games	5	5	0	0
Score	2	2	0	0
Expected score	2.17	2.36	0	0
Score-Expected	-0.17	-0.36	0	0
Temp raw +/-	-6	-13	0	0
Final raw +/-	-6	-13	0	0
New raw rating	1255.1	1264	1100.9	1200
New weighted rating	1166	1170.4	1117.1	1200
New weighted performance	1340	1339.2	986.8	0
Temp new rating	1340	1339.2	1117.1	1200
Temp new rating +/-	-12.6	-11.4	-2.1	0
Final new rating +/-	-12.6	-11.4	-2.1	0
New rating	1340	1339.2	1117.1	1200
New K-factor	36	36	36	36
New floor	761.1	776.9	700	700

Item	Main	Standard	Rapid
	0	0	0
	64	48	16
	64	42	22
	0	0	0
	0	0	0
	0	0	0
History	128	90	38

Games since
	Main 128	Standard 90		Rapid 38		Blitz 0
Gender	Female
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2688		930		154
Female	490		174		34
U12	378		134		24
U12 Female	99		39		6
Standard
	RSA		Province		Region
Overall	2643		969		139
Female	491		179		28
U12	364		136		23
U12 Female	97		41		6
Rapid
	RSA		Province		Region
Overall	1908		321		106
Female	472		78		45
U12	378		53		26
U12 Female	123		19		10
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	64	27	42.19	-66.4	1292	1225.6
Standard	48	22	45.83	-35.4	1286.6	1251.2
Rapid	16	5	31.25	-159.4	1308.4	1149
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	128	47	36.72	-112.9	1257.1	1144.2
Standard	90	33.5	37.22	-108.6	1262.9	1154.3
Rapid	38	13.5	35.53	-123	1243.3	1120.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1261.1	1276.9	1100.9	1200
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
2024-09-01	1104.3	1118	1100.8	1200
2024-05-01	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

Comming soon.

Tournaments

History

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Power House October Open 2025 (C)	2025-10-25	2025-10-25	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Power House October Open 2025 (C)	2025-10-25	2025-10-25	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	2025 Gauteng Top Schools Teams (U11)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
3	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
4	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
5	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	Ekurhuleni North Chess Club Open Tournament 2025 (D)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
7	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	1	Yes	Analysis
8	Ekurhuleni Trials 2025 (F)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
9	Chess Power House Youth Day Rapid 2025 (C)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
10	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
11	Chess Molecules Open Tournament 2025 (C)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
12	Benoni Primary School Cluster 12 April 2025 (U11 Girls)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
13	Ekurhuleni Chess Open 2025 (D)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
14	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	Chess Power House October Open 2025 (C)	2025-10-25	2025-10-25	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
2	2025 Gauteng Top Schools Teams (U11)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
3	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
4	East Rand Chess Club Open 2025 (C)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
5	Ekurhuleni North Schools Teams 2025 (U11)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	5	5	4	Yes	Analysis
6	Ekurhuleni North Chess Club Open Tournament 2025 (D)	2025-08-09	2025-08-09	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
7	Benoni Primary School Cluster Teams 2025 (U11A)	2025-08-02	2025-08-02	Rapid	Ekurhuleni (GE)	7	6	1	Yes	Analysis
8	Ekurhuleni Trials 2025 (F)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
9	Chess Power House Youth Day Rapid 2025 (C)	2025-06-16	2025-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
10	Ekurhuleni Trials 2025 (F)	2025-05-24	2025-05-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
11	Chess Molecules Open Tournament 2025 (C)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
12	Benoni Primary School Cluster 12 April 2025 (U11 Girls)	2025-04-12	2025-04-12	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
13	Ekurhuleni Chess Open 2025 (D)	2025-03-15	2025-03-15	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
14	Ekurhuleni/Springs Open 025 (U12)	2025-02-22	2025-02-22	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
15	Gauteng Inter-Region at UJ 2024 (U12 Girls)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
16	CPH Boksburg Open 2024 (C)	2024-10-26	2024-10-26	Standard	Ekurhuleni (GE)	5	4	0	Yes	Analysis
17	Ekurhuleni North Chess Club Open Tournament 2024 (D)	2024-08-09	2024-08-09	Standard	Ekurhuleni (GE)	5	4	1	Yes	Analysis
18	Ekurhuleni Trails 2 2024 (U12)	2024-07-27	2024-07-27	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
19	EN Chess Club Winter Open 2024 (D)	2024-06-29	2024-06-29	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
20	Chess Power House June Open 2024 (D)	2024-06-23	2024-06-23	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
21	Ekurhuleni Trails 1 2024 (U12)	2024-06-01	2024-06-01	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
22	JCC King David Linksfield Rapid 2024 (C)	2024-04-21	2024-04-21	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
23	Westwood Open 2024 (C)	2024-04-13	2024-04-13	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
24	Ekurhuleni Open 2024 (D)	2024-04-06	2024-04-06	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
25	Ekurhuleni North Chess Club Open Tournament 2024 (E)	2024-03-02	2024-03-02	Rapid	Ehlanzeni (MEN)	7	7	3	Yes	Analysis
26	CPH St Andrew's Rapid 2024 (C)	2024-03-30	2024-03-30	Rapid	Ekurhuleni (GE)	5	5	1	Yes	Analysis
27	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	6	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	5	Tournament Ekurhuleni North Schools Teams 2025				Tournament 2025 Gauteng Top Schools Teams
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-08-29	rnd 3	type Standard	result 1
		Opponent De Witt, T (Tiara-Lee)				Opponent Makoni, T (Tariro Elijah)
3	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)

#	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	Potgieter ,L (Lienke)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Potgieter ,L (Lienke)	2	1161.6	736.6	2	1150.2	736.6	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	Shan ,J (Jing)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Shan ,J (Jing)	2	1236.4	811.4	2	1238.8	811.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Karsas, S (Sophia)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms