Chess South Africa Ratings Database

PLAYER PAGE

Personal

Onyekwere, V (Vivian)

Chess SA id

2090157258

FIDE id

Date of birth

2009-11-27 (U18)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

37.4

Junior GPX Points

1304.5

Item	Main	Standard	Rapid	Blitz
Rating	1334	1336	1188.8	1200
Raw rating	1324.1	1336	1188.8	1200
Weighted rating	1212.7	1226	1169.3	1200
Weighted performance	1334	1321.5	1024.4	0
Floor	824.1	836	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	138.9	136.6	168.5	165.8
Highest rating	1334 2025-11-01	1336 2025-11-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1324.1 2025-11-01	1336 2025-11-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1244.4 2018-10-01	1243.4 2024-06-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1334 2025-11-01	1321.5 2025-11-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-8	0	0	0
New rating	1326	1336	1188.8	1200
Analysis
Rating	1334	1336	1188.8	1200
Raw rating	1324.1	1336	1188.8	1200
Weighted rating	1212.7	1226	1169.3
Weighted performance	1334	1321.5	1024.4
K-factor	36	36	36	36
Floor	824.1	836	700	700
Max/Min rating change allowed	138.9	136.6	168.5	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	1324.1	1336	1188.8	1200
New weighted rating	1223.1	1235.5	1171.8	1200
New weighted performance	1326	1313.6	1017.5	0
Temp new rating	1326	1336	1188.8	1200
Temp new rating +/-	-8	0	0	0
Final new rating +/-	-8	0	0	0
New rating	1326	1336	1188.8	1200
New K-factor	36	36	36	36
New floor	824.1	836	700	700

Item	Main	Standard	Rapid
	0	0	0
	32	27	5
	19	10	9
	19	5	14
	0	0	0
	0	0	0
History	70	42	28

Games since
	Main 56	Standard 37		Rapid 19		Blitz 0
Gender	Female
Age group	U18
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2912		993		164
Female	558		200		42
U18	446		170		28
U18 Female	73		30		8
Standard
	RSA		Province		Region
Overall	2815		1025		149
Female	531		191		29
U18	455		180		24
U18 Female	66		26		5
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	32	17	53.12	26.6	1326.7	1353.3
Standard	27	14.5	53.7	31.5	1327.6	1359.1
Rapid	5	2.5	50	0	1322	1322
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	70	32.5	46.43	-30.4	1279.9	1249.5
Standard	42	20	47.62	-20.2	1317.7	1297.5
Rapid	28	12.5	44.64	-45.5	1223.2	1177.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1324.1	1336	1188.8	1200
2025-09-30	1245.2	1240.6	1188.8	1200
2025-09-01	1251.8	1243.8	1188.8	1200
2025-08-01	1244.4	1243.4	1188.8	1200
2025-07-01	1244.4	1243.4	1188.8	1200
2025-06-01	1244.4	1243.4	1188.8	1200
2025-05-01	1206.9	1201.7	1188.8	1200
2025-04-01	1189.2	1201.7	1176.3	1200
2025-03-01	1189.2	1201.7	1176.3	1200
2025-02-01	1189.2	1201.5	1176.3	1200
2025-01-01	1189.2	1197.4	1176.3	1200
2024-12-01	1185.1	1194.9	1176.3	1200
2024-11-01	1185.1	1194.9	1176.3	1200
2024-10-01	1138.1	1194.9	1096.4	1200
2024-09-01	1138.1	1194.9	1096.4	1200
2024-08-01	1138.1	1194.9	1096.4	1200
2024-07-01	1138.1	1194.9	1096.4	1200
2024-09-01	1173.4	1209.7	1143.9	1200
2024-05-01	1173.4	1209.7	1143.9	1200
2024-04-01	1173.4	1209.7	1143.9	1200
2024-03-01	1173.4	1209.7	1143.9	1200
2024-02-01	1173.4	1209.7	1143.9	1200
2024-01-01	1173.4	1209.7	1143.9	1200
2023-12-01	1173.4	1209.7	1143.9	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	2025 Gauteng Top Schools Teams (U19 Girls)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
2	St Peters College Sports & Cultural Festival 2025	2025-09-19	2025-09-20	Standard	Johannesburg Metro (GJM)	6	4	2	Yes	Analysis
3	Tshwane Chess Club Clash 2025 (Ladies)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
4	Ekurhuleni Trials 2025 (C)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	Moja Chess Extravaganza 2025 (Ladies)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	9	4.5	Yes	Analysis
6	Chess Molecules Open Tournament 2025 (B)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U19 Girls)	2025-08-30	2025-08-30	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
2	St Peters College Sports & Cultural Festival 2025	2025-09-19	2025-09-20	Standard	Johannesburg Metro (GJM)	6	4	2	Yes	Analysis
3	Tshwane Chess Club Clash 2025 (Ladies)	2025-09-13	2025-09-13	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
4	Ekurhuleni Trials 2025 (C)	2025-07-26	2025-07-26	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
5	Moja Chess Extravaganza 2025 (Ladies)	2025-04-26	2025-05-01	Standard	Johannesburg Metro (GJM)	9	9	4.5	Yes	Analysis
6	Chess Molecules Open Tournament 2025 (B)	2025-04-19	2025-04-19	Rapid	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
7	Gauteng Inter-Region at UJ 2024 (U18 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
8	Gauteng Top Schools 2024 (U15 Girls)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	4	Yes	Analysis
9	Chess Molecules Open Chess Tournament 2024 (High School Girls)	2024-06-15	2024-06-15	Rapid	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis
10	Ekurhuleni Trails 1 2024 (U16)	2024-06-01	2024-06-01	Standard	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
11	Chess is My Lifestyle 2023 (High School Girls)	2023-12-09	2023-12-09	Rapid	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
12	Chess Molecules Rapid 2023 (High School Girls)	2023-09-23	2023-09-23	Rapid	Ekurhuleni (GE)	5	4	2	Yes	Analysis
13	2023 Gauteng Top Schools (U15 Girls)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
14	Chess Molecules 16 June Tournament 2023 (High School Girls)	2023-06-16	2023-06-16	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis

#	Games	Start				End
1	5	Tournament 2025 Gauteng Top Schools Teams				Tournament 2025 Gauteng Top Schools Teams
		date 2025-08-30	rnd 1	type Standard	result 1	date 2025-08-30	rnd 5	type Standard	result 1
		Opponent Kodisang, C (Chantelle)				Opponent Hingorani, R (Ridhima)
2	4	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-29	rnd 6	type Standard	result 1	date 2025-05-01	rnd 9	type Standard	result 1
		Opponent Pathan, Z (Zaarah)				Opponent Kekana, L (Letsatsi)
3	4	Tournament Chess Molecules Open Chess Tournament 2024				Tournament Gauteng Top Schools 2024
		date 2024-06-15	rnd 5	type Rapid	result 0.5	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Kiruri, C (Cynthia)				Opponent Dube, M (Minenhle)

#	Games	Start				End
1	4	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-29	rnd 6	type Standard	result 1	date 2025-05-01	rnd 9	type Standard	result 1
		Opponent Pathan, Z (Zaarah)				Opponent Kekana, L (Letsatsi)
2	2	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Makomva, K (Kyla)				Opponent Nhuvunga, J (Jededia Trinity)
3	2	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-08	rnd 4	type Standard	result 0.5	date 2024-12-08	rnd 5	type Standard	result 1
		Opponent Acker, S (Steven)				Opponent Venter , J (James)

#	Games	Start				End
1	4	Tournament Chess Molecules Open Chess Tournament 2024				Tournament Gauteng Top Schools 2024
		date 2024-06-15	rnd 5	type Rapid	result 0.5	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Kiruri, C (Cynthia)				Opponent Dube, M (Minenhle)
2	2	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 4	type Rapid	result 1	date 2025-04-19	rnd 5	type Rapid	result 0.5
		Opponent Mbele, L (Londeka Zwelihle)				Opponent Ngwangwa, N (Nonhlanhla)
3	2	Tournament Chess is My Lifestyle 2023				Tournament Chess is My Lifestyle 2023
		date 2023-12-09	rnd 3	type Rapid	result 0.5	date 2023-12-09	rnd 4	type Rapid	result 1
		Opponent Kiruri, C (Cynthia)				Opponent Obioha, C (Chiwendu)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Khensani, F (Fulane)				Opponent Dube, M (Minenhle)
2	3	Tournament Chess Molecules 16 June Tournament 2023				Tournament 2023 Gauteng Top Schools
		date 2023-06-16	rnd 5	type Rapid	result 1	date 2023-08-19	rnd 2	type Standard	result 1
		Opponent Marongwe, A (Anotida)				Opponent Rammoneng, K (Kabelo)
3	2	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Makomva, K (Kyla)				Opponent Nhuvunga, J (Jededia Trinity)

#	Games	Start				End
1	2	Tournament Ekurhuleni Trials 2025				Tournament Ekurhuleni Trials 2025
		date 2025-07-26	rnd 2	type Standard	result 1	date 2025-07-26	rnd 3	type Standard	result 1
		Opponent Makomva, K (Kyla)				Opponent Nhuvunga, J (Jededia Trinity)
2	2	Tournament Moja Chess Extravaganza 2025				Tournament Moja Chess Extravaganza 2025
		date 2025-04-30	rnd 8	type Standard	result 1	date 2025-05-01	rnd 9	type Standard	result 1
		Opponent Conradie, I (Ingrid)				Opponent Kekana, L (Letsatsi)
3	2	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-19	rnd 1	type Standard	result 1	date 2023-08-19	rnd 2	type Standard	result 1
		Opponent Sibiya, T (Thandlowethu)				Opponent Rammoneng, K (Kabelo)

#	Games	Start				End
1	3	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 1	type Rapid	result 1	date 2024-10-05	rnd 3	type Rapid	result 1
		Opponent Khensani, F (Fulane)				Opponent Dube, M (Minenhle)
2	2	Tournament Chess Molecules 16 June Tournament 2023				Tournament Chess Molecules Rapid 2023
		date 2023-06-16	rnd 5	type Rapid	result 1	date 2023-09-23	rnd 1	type Rapid	result 1
		Opponent Marongwe, A (Anotida)				Opponent Kekane, T (Tshireketso)
3	1	Tournament Chess Molecules Open Tournament 2025				Tournament Chess Molecules Open Tournament 2025
		date 2025-04-19	rnd 4	type Rapid	result 1	date 2025-04-19	rnd 4	type Rapid	result 1
		Opponent Mbele, L (Londeka Zwelihle)				Opponent Mbele, L (Londeka Zwelihle)

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	Kekane ,T (Tshireketso)	2	2	425	1	1	425	1	1	425	0	0	0
1	Kekane ,T (Tshireketso)	2	1151	1576	1	1158.8	1576	1	1200	1576	0	0	0
2	Hunkin ,S (Sarah)	2	1	0	1	1	425	1	0	-425	0	0	0
2	Hunkin ,S (Sarah)	2	1200	1200	1	1200	1625	1	1200	775	0	0	0
3	Kiruri ,C (Cynthia)	2	1	0	0	0	0	2	1	0	0	0	0
3	Kiruri ,C (Cynthia)	2	1149	1149	0	0	0	2	1159.2	1149	0	0	0
4	Yalcoue ,Z (Zenebou)	2	1	0	0	0	0	2	1	0	0	0	0
4	Yalcoue ,Z (Zenebou)	2	1093.1	1093.1	0	0	0	2	1077.6	1093.1	0	0	0
5	Bennett ,J (Jemmah)	2	0	-425	0	0	0	2	0	-425	0	0	0
5	Bennett ,J (Jemmah)	2	1247.8	822.8	0	0	0	2	1224.9	822.8	0	0	0
6	Conradie ,I (Ingrid)	1	1	425	1	1	425	0	0	0	0	0	0
6	Conradie ,I (Ingrid)	1	1620.7	2045.7	1	1622.7	2045.7	0	0	0	0	0	0
7	Moodley ,DD (Dhivya Dhanam)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Moodley ,DD (Dhivya Dhanam)	1	1168.5	743.5	1	1166	743.5	0	0	0	0	0	0
8	Lovely ,J (Jake)	1	1	425	1	1	425	0	0	0	0	0	0
8	Lovely ,J (Jake)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Mihigo ,M (Marius)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Mihigo ,M (Marius)	1	1306.7	881.7	1	1336	881.7	0	0	0	0	0	0
10	Mashatola ,N (Nomvula Miriam)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Mashatola ,N (Nomvula Miriam)	1	1192	1192	1	1189.2	1192	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Onyekwere, V (Vivian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms