Chess South Africa Ratings Database

PLAYER PAGE

Personal

Onyemah, I (Ifeoma)

Chess SA id

2110107817

FIDE id

Date of birth

2011-06-24 (U16)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-29

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1105.2	1097.4	1221.6	1200
Raw rating	1105.2	1097.4	1221.6	1200
Weighted rating	1105.2	1097.4	1221.6	1200
Weighted performance	324.4	322.1	0	0
Floor	700	700	721.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	189.8	191.9	160.8	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1292.5 2019-05-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1221.6 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1221.6 2025-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1292.5 2019-05-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1105.2	1097.4	1221.6	1200
Analysis
Rating	1105.2	1097.4	1221.6	1200
Raw rating	1105.2	1097.4	1221.6	1200
Weighted rating	1105.2	1097.4	1221.6
Weighted performance	324.4	322.1	0
K-factor	36	36	36	36
Floor	700	700	721.6	700
Max/Min rating change allowed	189.8	191.9	160.8	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	1105.2	1097.4	1221.6	1200
New weighted rating	1105.2	1097.4	1221.6	1200
New weighted performance	324	321.7	0	0
Temp new rating	1105.2	1097.4	1221.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1105.2	1097.4	1221.6	1200
New K-factor	36	36	36	36
New floor	700	700	721.6	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	87	82	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	87	30.5	35.06	-127	1180	1052.9
Standard	82	27.5	33.54	-139.9	1178.5	1038.6
Rapid	5	3	60	85	1203.1	1288.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1105.2	1097.4	1221.6	1200
2025-09-01	1105.2	1097.4	1221.6	1200
2025-08-01	1105.2	1097.4	1221.6	1200
2025-07-01	1105.2	1097.4	1221.6	1200
2025-06-01	1105.2	1097.4	1221.6	1200
2025-05-01	1105.2	1097.4	1221.6	1200
2025-04-01	1105.2	1097.4	1221.6	1200
2025-03-01	1105.2	1097.4	1221.6	1200
2025-02-01	1105.2	1097.4	1221.6	1200
2025-01-01	1105.2	1097.4	1221.6	1200
2024-12-01	1105.2	1097.4	1221.6	1200
2024-11-01	1105.2	1097.4	1221.6	1200
2024-10-01	1105.2	1097.4	1221.6	1200
2024-09-01	1105.2	1097.4	1221.6	1200
2024-08-01	1105.2	1097.4	1221.6	1200
2024-07-01	1105.2	1097.4	1221.6	1200
2024-06-01	1105.2	1097.4	1221.6	1200
2024-08-01	1105.2	1097.4	1221.6	1200
2024-04-01	1105.2	1097.4	1221.6	1200
2024-03-01	1105.2	1097.4	1221.6	1200
2024-02-01	1105.2	1097.4	1221.6	1200
2024-01-01	1105.2	1097.4	1221.6	1200
2023-12-01	1105.2	1097.4	1221.6	1200
2023-11-01	1105.2	1097.4	1221.6	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JNW Club - Bryanston Open1 2020 (E)	2020-02-01	2020-02-01	Standard	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
2	Chessnuts 1 - 29 February 2020 (Knights)	2020-02-29	2020-02-29	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
3	2019 Wild Card Chess Championship (U10 Girls)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
4	2019 South African Junior Team Championships (U10 Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	6	2	Yes	Analysis
5	Chessnuts November Tournament 2019 (Pawns)	2019-11-08	2019-11-08	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis
6	GJM vs GE Inter Region 2019 (U10B)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
7	2019 Gauteng School League Finals (U9 Open)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
8	JNW Club - Maragon Open 2019 (E)	2019-08-03	2019-08-03	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
9	2019 Alekhine Open (E)	2019-08-09	2019-08-09	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
10	JHB Metro Closed 2019 (U10)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	2.5	Yes	Analysis
11	JNW Club - Hoerskool Linden 2019 (E)	2019-06-15	2019-06-15	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
12	Fonties Challange 2019 (U9)	2019-06-08	2019-06-08	Standard	Johannesburg Metro (GJM)	5	5	1	Yes	Analysis
13	The Metro Open 2019 (Cadets)	2019-05-25	2019-05-25	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	Gauteng D9 Finals 2019 (U9 Girls)	2019-05-18	2019-05-18	Rapid	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
15	JNW Club - Bryanston Open 1 2019 (U10)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	0.5	Yes	Analysis
16	Boksburg Open 2019 (D)	2019-01-19	2019-01-19	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
17	GoForChess Grayston Junior Chess Championship 2018 (U8)	2018-06-10	2018-06-10	Standard	Johannesburg Metro (GJM)	5	5	0.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2019 Alekhine Open				Tournament 2019 Gauteng School League Finals
		date 2019-08-09	rnd 4	type Standard	result 1	date 2019-08-23	rnd 2	type Standard	result 0.5
		Opponent Jansen Van Vuuren, J (Joshua)				Opponent Uwakata, SK (Samantha)
2	4	Tournament JHB Metro Closed 2019				Tournament JNW Club - Maragon Open 2019
		date 2019-07-28	rnd 4	type Standard	result 1	date 2019-08-03	rnd 1	type Standard	result 1
		Opponent Mhambi, N (Njabulo)				Opponent Van Der Sandt, I (Iliana)
3	3	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 3	type Rapid	result 1
		Opponent Dai, T (Talucia)				Opponent Motloutsi, L (Lilly)

#	Games	Start				End
1	4	Tournament 2019 Alekhine Open				Tournament 2019 Gauteng School League Finals
		date 2019-08-09	rnd 4	type Standard	result 1	date 2019-08-23	rnd 2	type Standard	result 0.5
		Opponent Jansen Van Vuuren, J (Joshua)				Opponent Uwakata, SK (Samantha)
2	4	Tournament JHB Metro Closed 2019				Tournament JNW Club - Maragon Open 2019
		date 2019-07-28	rnd 4	type Standard	result 1	date 2019-08-03	rnd 1	type Standard	result 1
		Opponent Mhambi, N (Njabulo)				Opponent Van Der Sandt, I (Iliana)
3	2	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Lovett, S (Saffron)				Opponent Smit, A (Anika)

#	Games	Start				End
1	3	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 3	type Rapid	result 1
		Opponent Dai, T (Talucia)				Opponent Motloutsi, L (Lilly)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 3	type Rapid	result 1
		Opponent Dai, T (Talucia)				Opponent Motloutsi, L (Lilly)
2	2	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Lovett, S (Saffron)				Opponent Smit, A (Anika)
3	2	Tournament GJM vs GE Inter Region 2019				Tournament Chessnuts November Tournament 2019
		date 2019-10-05	rnd 5	type Standard	result 1	date 2019-11-08	rnd 1	type Standard	result 1
		Opponent Maharaj, A (Arya)				Opponent Eustace, H (Holly)

#	Games	Start				End
1	2	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 1	type Standard	result 1	date 2020-01-04	rnd 2	type Standard	result 1
		Opponent Lovett, S (Saffron)				Opponent Smit, A (Anika)
2	2	Tournament GJM vs GE Inter Region 2019				Tournament Chessnuts November Tournament 2019
		date 2019-10-05	rnd 5	type Standard	result 1	date 2019-11-08	rnd 1	type Standard	result 1
		Opponent Maharaj, A (Arya)				Opponent Eustace, H (Holly)
3	2	Tournament JHB Metro Closed 2019				Tournament JHB Metro Closed 2019
		date 2019-07-28	rnd 4	type Standard	result 1	date 2019-07-28	rnd 5	type Standard	result 1
		Opponent Mhambi, N (Njabulo)				Opponent Vendidandi, CK (Chaitanya Kartik)

#	Games	Start				End
1	3	Tournament Gauteng D9 Finals 2019				Tournament Gauteng D9 Finals 2019
		date 2019-05-18	rnd 1	type Rapid	result 1	date 2019-05-18	rnd 3	type Rapid	result 1
		Opponent Dai, T (Talucia)				Opponent Motloutsi, L (Lilly)

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	Gough ,R (Rowan)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Gough ,R (Rowan)	3	1143.3	718.3	3	1137.3	718.3	0	0	0	0	0	0
2	Botha ,A (Andrea)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
2	Botha ,A (Andrea)	3	1145.9	862.5	3	1137.1	862.5	0	0	0	0	0	0
3	Chauke ,N (Nosipho)	2	1	0	2	1	0	0	0	0	0	0	0
3	Chauke ,N (Nosipho)	2	1232.1	1232.1	2	1227.9	1232.1	0	0	0	0	0	0
4	Bothma ,J (Jaculene)	2	1	0	2	1	0	0	0	0	0	0	0
4	Bothma ,J (Jaculene)	2	927.7	927.7	2	898.5	927.7	0	0	0	0	0	0
5	Lovett ,S (Saffron)	2	1	0	2	1	0	0	0	0	0	0	0
5	Lovett ,S (Saffron)	2	1167	1167	2	1146.2	1167	0	0	0	0	0	0
6	Chen ,Y (Youlin)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Chen ,Y (Youlin)	2	1254.5	829.5	2	1258.1	829.5	0	0	0	0	0	0
7	Li ,Y (Yangyang)	2	2	425	2	2	425	0	0	0	0	0	0
7	Li ,Y (Yangyang)	2	960.3	1385.3	2	930.8	1385.3	0	0	0	0	0	0
8	Deysel ,H (Hannah)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Deysel ,H (Hannah)	2	1114.9	689.9	2	1102.8	689.9	0	0	0	0	0	0
9	Maharaj ,A (Arya)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Maharaj ,A (Arya)	2	1154	1366.5	2	1140.7	1366.5	0	0	0	0	0	0
10	Van Der Sandt ,I (Iliana)	2	1	0	2	1	0	0	0	0	0	0	0
10	Van Der Sandt ,I (Iliana)	2	1175.6	1175.6	2	1156.5	1175.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Onyemah, I (Ifeoma)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms