Chess South Africa Ratings Database

PLAYER PAGE

Personal

Amachukwu, J (Joseph)

Chess SA id

1090158533

FIDE id

Date of birth

2009-04-07 (U18)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

57.7

Junior GPX Points

1349.7

Item	Main	Standard	Rapid	Blitz
Rating	1530.7	1524.1	1200	1200
Raw rating	1514.2	1509.7	1200	1200
Weighted rating	1402.6	1398.5	1200	1200
Weighted performance	1530.7	1524.1	0	0
Floor	1014.2	1009.7	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	106	106.7	165.8	165.8
Highest rating	1530.7 2025-09-30	1524.1 2025-09-30	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1514.2 2025-09-30	1509.7 2025-09-30	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1402.6 2025-09-30	1398.5 2025-09-30	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1530.7 2025-09-30	1524.1 2025-09-30	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.5	-0.5	0	0
New rating	1530.1	1523.6	1200	1200
Analysis
Rating	1530.7	1524.1	1200	1200
Raw rating	1514.2	1509.7	1200	1200
Weighted rating	1402.6	1398.5	1200
Weighted performance	1530.7	1524.1	0
K-factor	32	32	36	36
Floor	1014.2	1009.7	700	700
Max/Min rating change allowed	106	106.7	165.8	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	1514.2	1509.7	1200	1200
New weighted rating	1415.5	1411.4	1200	1200
New weighted performance	1530.1	1523.6	0	0
Temp new rating	1530.1	1523.6	1200	1200
Temp new rating +/-	-0.5	-0.5	0	0
Final new rating +/-	-0.5	-0.5	0	0
New rating	1530.1	1523.6	1200	1200
New K-factor	32	32	36	36
New floor	1014.2	1009.7	700	700

Item	Main	Standard	Blitz
	0	0	0
	59	50	9
	41	41	0
	5	5	0
	0	0	0
	0	0	0
History	105	96	9

Games since
	Main 100	Standard 91		Rapid 0		Blitz 9
Gender	Male
Age group	U18
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	1036		126		46
Male	903		113		40
U18	160		22		4
U18 Male	140		21		4
Standard
	RSA		Province		Region
Overall	1000		120		44
Male	869		106		38
U18	164		24		4
U18 Male	146		22		4
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	59	32.5	55.08	43.2	1397.3	1440.6
Standard	50	28	56	51	1403.2	1454.2
Rapid	0	0	0	0	0	0
Blitz	9	4.5	50	0	1364.9	1364.9
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	105	58.5	55.71	48.6	1356.4	1404.9
Standard	96	54	56.25	53.1	1355.6	1408.7
Rapid	0	0	0	0	0	0
Blitz	9	4.5	50	0	1364.9	1364.9

Date	Main	Standard	Rapid	Blitz
2025-09-30	1514.2	1509.7	1200	1200
2025-09-01	1482.3	1477.4	1200	1200
2025-08-01	1482.3	1477.4	1200	1200
2025-07-01	1416.7	1416.5	1200	1200
2025-06-01	1361.5	1355.6	1200	1200
2025-05-01	1378.6	1373.9	1200	1200
2025-04-01	1386.9	1385.3	1200	1200
2025-03-01	1370.5	1365.8	1200	1199.9
2025-02-01	1350	1340.2	1200	1199.6
2025-01-01	1382.8	1376.4	1200	1200
2024-12-01	1431.4	1427	1200	1200
2024-11-01	1431.4	1427	1200	1200
2024-10-01	1431.4	1427	1200	1200
2024-09-01	1414.5	1407.2	1200	1200
2024-08-01	1414.5	1407.2	1200	1200
2024-07-01	1440.8	1436	1200	1200
2024-06-01	1440.8	1436	1200	1200
2024-08-01	1285.5	1301.5	1200	1200
2024-04-01	1254.1	1267.3	1200	1200
2024-03-01	1168.6	1164.3	1200	1200
2024-02-01	1155.8	1147.4	1200	1200
2024-01-01	1155.8	1147.4	1200	1200
2023-12-01	1155.8	1147.4	1200	1200
2023-11-01	1155.8	1147.4	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	EC Closed 2025 (U18 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
2	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U18 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
3	NMBCU Closed 2025 (U18)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
4	NMBCU Trial 4 2025 (U18)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
5	Karen Ashworth 2025 (B)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
6	NMB 3rd Trials 2025 (U18)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
7	NMB 2nd Trials 2025 (U18)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
8	Pearson High Chess Festival 2025 (B)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	4	2.5	Yes	Analysis
9	NMBCU vs BCC Derby Chess Invitational 2025 (U16)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	1	Yes	Analysis
10	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	9	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (U18 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
2	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U18 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	4	Yes	Analysis
3	NMBCU Closed 2025 (U18)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
4	NMBCU Trial 4 2025 (U18)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
5	Karen Ashworth 2025 (B)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	2	Yes	Analysis
6	NMB 3rd Trials 2025 (U18)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
7	NMB 2nd Trials 2025 (U18)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
8	Pearson High Chess Festival 2025 (B)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	4	2.5	Yes	Analysis
9	NMBCU vs BCC Derby Chess Invitational 2025 (U16)	2025-01-10	2025-01-11	Standard	Nelson Mandela Bay (ENM)	5	5	1	Yes	Analysis
10	NMBCU vs BCC Derby Chess Invitational 2025 (Blitz Open A)	2025-01-12	2025-01-12	Blitz	Nelson Mandela Bay (ENM)	9	9	4.5	Yes	Analysis
11	Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Championship)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	7	2.5	Yes	Analysis
12	NMBCU Closed 2024 (U16)	2024-09-20	2024-09-21	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
13	NMBCU Trials 4 2024 (U16)	2024-07-12	2024-07-13	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
14	NMBCU Trial 3 2024 (U16)	2024-05-10	2024-05-11	Standard	Nelson Mandela Bay (ENM)	6	6	4.5	Yes	Analysis
15	NMBCU Trials 2 2024 (U16)	2024-04-12	2024-04-13	Standard	Nelson Mandela Bay (ENM)	6	6	4	Yes	Analysis
16	Madibaz Chess Tournament 2024 (B)	2024-03-01	2024-03-02	Standard	Nelson Mandela Bay (ENM)	5	4	4	Yes	Analysis
17	NMBCU Trials 1 2024 (U16)	2024-02-16	2024-02-16	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
18	NMBCU Trial 4 2023 (U16)	2023-07-28	2023-07-29	Standard	Nelson Mandela Bay (ENM)	5	5	1	Yes	Analysis

#	Games	Start				End
1	10	Tournament NMBCU Trials 2 2024				Tournament NMBCU Trials 4 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-07-12	rnd 1	type Standard	result 0.5
		Opponent Fogarty, S (Simon)				Opponent Gie, L (Luca)
2	7	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMB 2nd Trials 2025
		date 2025-01-12	rnd 9	type Blitz	result 0.5	date 2025-03-08	rnd 2	type Standard	result 0.5
		Opponent Reid, L (Liam)				Opponent Swart, R (Ruan)
3	7	Tournament NMBCU Trials 1 2024				Tournament NMBCU Trials 2 2024
		date 2024-02-16	rnd 6	type Standard	result 1	date 2024-04-13	rnd 2	type Standard	result 0.5
		Opponent Petzer, D (Dante)				Opponent Van Der Merwe, L (Lucas)

#	Games	Start				End
1	10	Tournament NMBCU Trials 2 2024				Tournament NMBCU Trials 4 2024
		date 2024-04-13	rnd 4	type Standard	result 1	date 2024-07-12	rnd 1	type Standard	result 0.5
		Opponent Fogarty, S (Simon)				Opponent Gie, L (Luca)
2	7	Tournament NMBCU Trials 1 2024				Tournament NMBCU Trials 2 2024
		date 2024-02-16	rnd 6	type Standard	result 1	date 2024-04-13	rnd 2	type Standard	result 0.5
		Opponent Petzer, D (Dante)				Opponent Van Der Merwe, L (Lucas)
3	6	Tournament Pearson High Chess Festival 2025				Tournament NMB 2nd Trials 2025
		date 2025-02-21	rnd 1	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 0.5
		Opponent April, E (Elethu)				Opponent Swart, R (Ruan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 6	type Blitz	result 1	date 2025-01-12	rnd 7	type Blitz	result 1
		Opponent Surmon, E (Ethan)				Opponent Mangcotywa, L (Lihle)
2	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 9	type Blitz	result 0.5	date 2025-01-12	rnd 9	type Blitz	result 0.5
		Opponent Reid, L (Liam)				Opponent Reid, L (Liam)
3	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 3	type Blitz	result 1	date 2025-01-12	rnd 3	type Blitz	result 1
		Opponent Bojana, S (Singisile)				Opponent Bojana, S (Singisile)

#	Games	Start				End
1	6	Tournament NMBCU Trials 1 2024				Tournament NMBCU Trials 2 2024
		date 2024-02-16	rnd 6	type Standard	result 1	date 2024-04-12	rnd 1	type Standard	result 1
		Opponent Petzer, D (Dante)				Opponent Solomon, S (Sandisiwe)
2	4	Tournament NMBCU Closed 2025				Tournament NMBCU Closed 2025
		date 2025-06-14	rnd 2	type Standard	result 1	date 2025-06-14	rnd 5	type Standard	result 1
		Opponent Freeman, N (Nicole)				Opponent Grigor, R (Ruan)
3	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 1	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Mayo, E (Esinaye)				Opponent Davids, T (Tristan)

#	Games	Start				End
1	6	Tournament NMBCU Trials 1 2024				Tournament NMBCU Trials 2 2024
		date 2024-02-16	rnd 6	type Standard	result 1	date 2024-04-12	rnd 1	type Standard	result 1
		Opponent Petzer, D (Dante)				Opponent Solomon, S (Sandisiwe)
2	4	Tournament NMBCU Closed 2025				Tournament NMBCU Closed 2025
		date 2025-06-14	rnd 2	type Standard	result 1	date 2025-06-14	rnd 5	type Standard	result 1
		Opponent Freeman, N (Nicole)				Opponent Grigor, R (Ruan)
3	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 1	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Mayo, E (Esinaye)				Opponent Davids, T (Tristan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 6	type Blitz	result 1	date 2025-01-12	rnd 7	type Blitz	result 1
		Opponent Surmon, E (Ethan)				Opponent Mangcotywa, L (Lihle)
2	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 3	type Blitz	result 1	date 2025-01-12	rnd 3	type Blitz	result 1
		Opponent Bojana, S (Singisile)				Opponent Bojana, S (Singisile)
3	1	Tournament NMBCU vs BCC Derby Chess Invitational 2025				Tournament NMBCU vs BCC Derby Chess Invitational 2025
		date 2025-01-12	rnd 1	type Blitz	result 1	date 2025-01-12	rnd 1	type Blitz	result 1
		Opponent George, V (Vijay)				Opponent George, V (Vijay)

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	Jaffray ,J (Joseph)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
1	Jaffray ,J (Joseph)	5	1528.5	1358.5	5	1522.7	1358.5	0	0	0	0	0	0
2	Dugmore ,D (Deacon)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
2	Dugmore ,D (Deacon)	4	1483.3	1164.6	4	1493.9	1164.6	0	0	0	0	0	0
3	Reid ,L (Liam)	4	2	0	3	1.5	0	0	0	0	1	0.5	0
3	Reid ,L (Liam)	4	1224.2	1224.2	3	1221	1224.2	0	0	0	1	1200	1224.2
4	Chipunza ,J (James)	3	0	-425	3	0	-425	0	0	0	0	0	0
4	Chipunza ,J (James)	3	1654.4	1229.4	3	1662.5	1229.4	0	0	0	0	0	0
5	Taljard ,J (Julian)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Taljard ,J (Julian)	2	1455.9	1243.4	2	1457.9	1243.4	0	0	0	0	0	0
6	April ,E (Elethu)	2	2	425	2	2	425	0	0	0	0	0	0
6	April ,E (Elethu)	2	1085.9	1510.9	2	1079.7	1510.9	0	0	0	0	0	0
7	Hall ,J (Joshua)	2	1	0	2	1	0	0	0	0	0	0	0
7	Hall ,J (Joshua)	2	1319.7	1319.7	2	1324.4	1319.7	0	0	0	0	0	0
8	Swart ,R (Ruan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
8	Swart ,R (Ruan)	2	1207.2	994.7	2	1207.9	994.7	0	0	0	0	0	0
9	Kipper ,W (Wolfgang)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
9	Kipper ,W (Wolfgang)	2	1447.4	1659.9	2	1452.1	1659.9	0	0	0	0	0	0
10	Boggenpoel ,C (Cole)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Boggenpoel ,C (Cole)	2	1255.2	1467.8	2	1252.8	1467.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Amachukwu, J (Joseph)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms