Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ogunjiofor, AJ (Asinobi Jeffrey)

Chess SA id

106057377

FIDE id

Date of birth

2006-04-09 (U20)

Gender

Male

Region

Ehlanzeni (MEN)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1592.8	1593.9	932.9	842.2
Raw rating	1576.5	1574.4	932.9	842.2
Weighted rating	1592.8	1593.9	932	842.2
Weighted performance	1336.6	1336.4	0	0
Floor	1108.6	1112.8	500	500
K-factor	28	28	40	40
Min/Max rating change allowed	97	97.3	242.6	276.1
Highest rating	1608.6 2024-08-01	1612.8 2024-08-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1608.6 2024-08-01	1612.8 2024-08-01	932.9 2024-02-01	842.2 2024-02-01
Highest weighted rating	1592.8 2025-09-30	1594 2025-08-01	932.9 2024-11-01	842.2 2024-11-01
Highest weighted performance	1605 2023-07-01	1602.4 2023-07-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.7	-0.8	0	0
New rating	1592.1	1593.1	932.9	842.2
Analysis
Rating	1592.8	1593.9	932.9	842.2
Raw rating	1576.5	1574.4	932.9	842.2
Weighted rating	1592.8	1593.9	932
Weighted performance	1336.6	1336.4	0
K-factor	28	28	40	40
Floor	1108.6	1112.8	500	500
Max/Min rating change allowed	97	97.3	242.6	276.1
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	1576.5	1574.4	932.9	842.2
New weighted rating	1592.1	1593.1	932.6	842.2
New weighted performance	1336	1335.9	0	0
Temp new rating	1592.1	1593.1	932.9	842.2
Temp new rating +/-	-0.7	-0.8	0	0
Final new rating +/-	-0.7	-0.8	0	0
New rating	1592.1	1593.1	932.9	842.2
New K-factor	28	28	40	40
New floor	1108.6	1112.8	500	500

Item	Main	Standard
	0	0
	7	7
	5	5
	37	37
	21	21
	5	5
History	304	304

Games since
	Main 16	Standard 16		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Ehlanzeni (MEN)
Province	Mpumalanga (MP)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-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	7	3	42.86	-60.7	1491.6	1430.9
Standard	7	3	42.86	-60.7	1491.6	1430.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	195	135.5	69.49	165.6	1181.4	1347
Standard	195	135.5	69.49	165.6	1181.4	1347
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1576.5	1574.4	932.9	842.2
2025-09-01	1593	1594	932.9	842.2
2025-08-01	1593	1594	932.9	842.2
2025-07-01	1593	1593.8	932.9	842.2
2025-06-01	1593	1593.8	932.9	842.2
2025-05-01	1593	1593.8	932.9	842.2
2025-04-01	1608.6	1612.8	932.9	842.2
2025-03-01	1608.6	1612.8	932.9	842.2
2025-02-01	1608.6	1612.8	932.9	842.2
2025-01-01	1608.6	1612.8	932.9	842.2
2024-12-01	1608.6	1612.8	932.9	842.2
2024-11-01	1608.6	1612.8	932.9	842.2
2024-10-01	1608.6	1612.8	932.9	842.2
2024-09-01	1608.6	1612.8	932.9	842.2
2024-08-01	1608.6	1612.8	932.9	842.2
2024-07-01	1556.5	1551.4	932.9	842.2
2024-06-01	1556.5	1551.4	932.9	842.2
2024-08-01	1556.5	1551.4	932.9	842.2
2024-04-01	1556.5	1551.4	932.9	842.2
2024-03-01	1556.5	1551.4	932.9	842.2
2024-02-01	1556.5	1551.4	932.9	842.2
2024-01-01	1556.5	1551.4	932.9	842.2
2023-12-01	1556.5	1551.4	842.2	842.2
2023-11-01	1572.6	1569.3	842.2	842.2

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 Centurion Chess Open Tournament (B)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	3	1	Yes	Analysis
2	Mpumalanga Open Chess Championship 2025 (A)	2025-04-19	2025-04-19	Standard	Ehlanzeni (MEN)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Centurion Chess Open Tournament (B)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	3	1	Yes	Analysis
2	Mpumalanga Open Chess Championship 2025 (A)	2025-04-19	2025-04-19	Standard	Ehlanzeni (MEN)	5	4	2	Yes	Analysis
3	2024 Chess Unlimited Invitational (Section 3)	2024-07-06	2024-07-06	Standard	Ehlanzeni (MEN)	5	5	5	Yes	Analysis
4	Mbombela Chess Club Annual 2023 (U18)	2023-12-02	2023-12-02	Standard	Nelson Mandela Bay (ENM)	5	4	2.5	Yes	Analysis
5	Trac N4 Mbombela Chess Tournament 2023 (Open)	2023-09-09	2023-09-09	Standard	Ehlanzeni (MEN)	5	5	3	Yes	Analysis
6	White River Primary 2023 (U20)	2023-07-21	2023-07-21	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
7	Interhigh 2023 (U19)	2023-07-29	2023-07-29	Standard	Ehlanzeni (MEN)	5	4	3.5	Yes	Analysis
8	Robbies 2023 (U20)	2023-05-11	2023-05-11	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
9	Oikos Chess Tournament 2023 (U20)	2023-03-11	2023-03-11	Standard	Ehlanzeni (MEN)	5	4	4	Yes	Analysis
10	Uplands Chess Tournament 2023 (U20)	2023-02-25	2023-02-25	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
11	Penryn Chess Tournament 2023 (U20)	2023-02-11	2023-02-11	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
12	2022 South African Junior Team Chess Championships (U18 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	2	Yes	Analysis
13	White River Primary 2022 (U20)	2022-07-30	2022-07-30	Standard	Ehlanzeni (MEN)	5	5	3.5	Yes	Analysis
14	Rob Ferreira Chess Tournament 2022 (U20)	2022-05-07	2022-05-07	Standard	Ehlanzeni (MEN)	5	5	5	Yes	Analysis
15	Uplands Chess Tournament 2022 (U18)	2022-02-26	2022-02-26	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
16	Chess Unlimited 1 2021 (U16)	2021-10-23	2021-10-23	Standard	Ehlanzeni (MEN)	5	5	5	Yes	Analysis
17	Bergvlam Tournament 2020 (U20)	2020-03-14	2020-03-14	Standard	Ehlanzeni (MEN)	5	5	5	Yes	Analysis
18	Chess Unlimited Leap Year Tournament 2020 (Open)	2020-02-29	2020-02-29	Standard	Ehlanzeni (MEN)	5	5	2	Yes	Analysis
19	Uplands 2020 (U18)	2020-01-25	2020-01-25	Standard	Ehlanzeni (MEN)	5	4	3	Yes	Analysis
20	2019 South African Junior Team Championships (U14A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
21	Ehlanzeni Open 2019 (B)	2019-07-19	2019-07-21	Standard	Ehlanzeni (MEN)	5	4	1	Yes	Analysis
22	De Goede Top 10 2019 (U14)	2019-07-03	2019-07-03	Standard	Ehlanzeni (MEN)	5	5	3.5	Yes	Analysis
23	Barberton Primary 2019 (U14)	2019-07-27	2019-07-27	Standard	Ehlanzeni (MEN)	5	5	4.5	Yes	Analysis
24	Rob Ferreira 2019 (A)	2019-04-06	2019-04-06	Standard	Ehlanzeni (MEN)	5	5	3.5	Yes	Analysis
25	Curro Open 2019 (U14)	2019-04-12	2019-04-12	Standard	Ehlanzeni (MEN)	5	5	4.5	Yes	Analysis
26	Uplands Open Age 2019 (U14)	2019-03-09	2019-03-09	Standard	Ehlanzeni (MEN)	5	5	5	Yes	Analysis
27	Penryn Age Open 2019 (U14)	2019-02-09	2019-02-09	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
28	Chess Unlimited Open 2019 (A)	2019-01-26	2019-01-26	Standard	Ehlanzeni (MEN)	5	5	2	Yes	Analysis
29	South African Junior Team Championships 2018 (U14B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3.5	Yes	Analysis
30	Nelpsruit Prestige 2018 (C)	2018-09-14	2018-09-15	Standard	Ehlanzeni (MEN)	6	6	0.5	Yes	Analysis
31	De Goede Top 20 Closed 2018 (U14 Open)	2018-08-18	2018-08-18	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
32	Malelane Primary 2018 (U14 Open)	2018-07-21	2018-07-21	Standard	Ehlanzeni (MEN)	5	5	3.5	Yes	Analysis
33	Lowveld Open 2018 (B)	2018-07-28	2018-07-28	Standard	Ehlanzeni (MEN)	5	5	4.5	Yes	Analysis
34	Curro Age Open 2018 (U14 Open)	2018-05-12	2018-05-12	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
35	Penryn Age Open 2018 (U14 Boys)	2018-04-21	2018-04-21	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
36	Uplands College Open (B)	2018-03-03	2018-03-03	Standard	Ehlanzeni (MEN)	5	5	4	Yes	Analysis
37	Sabie Primary 2018 (B)	2018-03-10	2018-03-10	Standard	Ehlanzeni (MEN)	5	5	3	Yes	Analysis
38	Rob Ferreira Hoerskool Open 2018 (B)	2018-03-17	2018-03-17	Standard	Ehlanzeni (MEN)	5	5	4.5	Yes	Analysis
39	South African Junior Team Championships 2017 (U12B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	2	Yes	Analysis

#	Games	Start				End
1	13	Tournament Chess Unlimited Leap Year Tournament 2020				Tournament Uplands Chess Tournament 2022
		date 2020-02-29	rnd 5	type Standard	result 1	date 2022-02-26	rnd 2	type Standard	result 1
		Opponent Duvenhage, AM (Adriaan)				Opponent Khoza, A (Andile)
2	11	Tournament Uplands Chess Tournament 2022				Tournament White River Primary 2022
		date 2022-02-26	rnd 4	type Standard	result 1	date 2022-07-30	rnd 4	type Standard	result 0.5
		Opponent Bencini, J (Joel)				Opponent Mattheus, D (Dylan)
3	10	Tournament Uplands Chess Tournament 2023				Tournament Robbies 2023
		date 2023-02-25	rnd 4	type Standard	result 1	date 2023-05-11	rnd 4	type Standard	result 1
		Opponent Khoza, A (Andile)				Opponent Dube, O (Olwethu)

#	Games	Start				End
1	13	Tournament Chess Unlimited Leap Year Tournament 2020				Tournament Uplands Chess Tournament 2022
		date 2020-02-29	rnd 5	type Standard	result 1	date 2022-02-26	rnd 2	type Standard	result 1
		Opponent Duvenhage, AM (Adriaan)				Opponent Khoza, A (Andile)
2	11	Tournament Uplands Chess Tournament 2022				Tournament White River Primary 2022
		date 2022-02-26	rnd 4	type Standard	result 1	date 2022-07-30	rnd 4	type Standard	result 0.5
		Opponent Bencini, J (Joel)				Opponent Mattheus, D (Dylan)
3	10	Tournament Uplands Chess Tournament 2023				Tournament Robbies 2023
		date 2023-02-25	rnd 4	type Standard	result 1	date 2023-05-11	rnd 4	type Standard	result 1
		Opponent Khoza, A (Andile)				Opponent Dube, O (Olwethu)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	13	Tournament Chess Unlimited Leap Year Tournament 2020				Tournament Uplands Chess Tournament 2022
		date 2020-02-29	rnd 5	type Standard	result 1	date 2022-02-26	rnd 2	type Standard	result 1
		Opponent Duvenhage, AM (Adriaan)				Opponent Khoza, A (Andile)
2	10	Tournament Uplands Chess Tournament 2023				Tournament Robbies 2023
		date 2023-02-25	rnd 4	type Standard	result 1	date 2023-05-11	rnd 4	type Standard	result 1
		Opponent Khoza, A (Andile)				Opponent Dube, O (Olwethu)
3	10	Tournament Uplands Chess Tournament 2022				Tournament White River Primary 2022
		date 2022-02-26	rnd 4	type Standard	result 1	date 2022-07-30	rnd 3	type Standard	result 1
		Opponent Bencini, J (Joel)				Opponent Manana, K (Khanya)

#	Games	Start				End
1	13	Tournament Chess Unlimited Leap Year Tournament 2020				Tournament Uplands Chess Tournament 2022
		date 2020-02-29	rnd 5	type Standard	result 1	date 2022-02-26	rnd 2	type Standard	result 1
		Opponent Duvenhage, AM (Adriaan)				Opponent Khoza, A (Andile)
2	10	Tournament Uplands Chess Tournament 2023				Tournament Robbies 2023
		date 2023-02-25	rnd 4	type Standard	result 1	date 2023-05-11	rnd 4	type Standard	result 1
		Opponent Khoza, A (Andile)				Opponent Dube, O (Olwethu)
3	10	Tournament Uplands Chess Tournament 2022				Tournament White River Primary 2022
		date 2022-02-26	rnd 4	type Standard	result 1	date 2022-07-30	rnd 3	type Standard	result 1
		Opponent Bencini, J (Joel)				Opponent Manana, K (Khanya)

No games found.

#	Games	Start				End

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	Van Heerden ,J (Joshua)	13	8.5	130.8	13	8.5	130.8	0	0	0	0	0	0
1	Van Heerden ,J (Joshua)	13	1355.3	1486.1	13	1355.3	1486.1	0	0	0	0	0	0
2	Dube ,O (Olwethu)	8	5	106.2	8	5	106.2	0	0	0	0	0	0
2	Dube ,O (Olwethu)	8	1214.4	1320.6	8	1207.4	1320.6	0	0	0	0	0	0
3	Mattheus ,D (Dylan)	6	4.5	212.5	6	4.5	212.5	0	0	0	0	0	0
3	Mattheus ,D (Dylan)	6	1358.5	1571	6	1365.4	1571	0	0	0	0	0	0
4	Jameson ,A (Alen)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
4	Jameson ,A (Alen)	5	1276.3	1106.3	5	1281.3	1106.3	0	0	0	0	0	0
5	Ogunjiofor ,O (Onyinye)	4	4	425	4	4	425	0	0	0	0	0	0
5	Ogunjiofor ,O (Onyinye)	4	1400.6	1825.6	4	1397.2	1825.6	0	0	0	0	0	0
6	Douglass ,NW (Nathan)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
6	Douglass ,NW (Nathan)	4	861.3	1073.8	4	869.7	1073.8	0	0	0	0	0	0
7	Khoza ,A (Andile)	3	3	425	3	3	425	0	0	0	0	0	0
7	Khoza ,A (Andile)	3	1216.5	1641.5	3	1218.3	1641.5	0	0	0	0	0	0
8	Ashara ,P (Prajeet)	3	3	425	3	3	425	0	0	0	0	0	0
8	Ashara ,P (Prajeet)	3	1082.1	1507.1	3	1070.5	1507.1	0	0	0	0	0	0
9	Onwusaka ,G (Gift)	3	0	-425	3	0	-425	0	0	0	0	0	0
9	Onwusaka ,G (Gift)	3	1252.6	827.6	3	1259.3	827.6	0	0	0	0	0	0
10	Ogunjiofor ,CJ (Chinedu Jeremy)	3	3	425	3	3	425	0	0	0	0	0	0
10	Ogunjiofor ,CJ (Chinedu Jeremy)	3	1260.7	1685.7	3	1254.6	1685.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Ogunjiofor, AJ (Asinobi Jeffrey)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms