Chess South Africa Ratings Database

PLAYER PAGE

Personal

Ngculana, Z (Zachuma)

Chess SA id

106066546

FIDE id

Date of birth

2006-03-14 (U20)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-02-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1188.6	1217.4	840.9	500
Raw rating	1188.6	1217.4	840.9	500
Weighted rating	1188.1	1216.3	839.7	500
Weighted performance	906.1	901.4	0	0
Floor	700.3	738.6	500	500
K-factor	36	36	40	40
Min/Max rating change allowed	168.5	161.8	276.6	449.5
Highest rating	1210.5 2023-08-01	1238.6 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1200.3 2024-02-01	1238.6 2024-02-01	840.9 2024-02-01	500 2024-02-01
Highest weighted rating	1200.3 2024-11-01	1238.6 2025-06-01	840.9 2024-11-01	500 2024-11-01
Highest weighted performance	1210.5 2023-08-01	1203.7 2023-08-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1188.6	1217.4	840.9	500
Analysis
Rating	1188.6	1217.4	840.9	500
Raw rating	1188.6	1217.4	840.9	500
Weighted rating	1188.1	1216.3	839.7
Weighted performance	906.1	901.4	0
K-factor	36	36	40	40
Floor	700.3	738.6	500	500
Max/Min rating change allowed	168.5	161.8	276.6	449.5
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	1188.6	1217.4	840.9	500
New weighted rating	1188	1216.3	840.9	500
New weighted performance	898.5	893.9	0	0
Temp new rating	1188.6	1217.4	840.9	500
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1188.6	1217.4	840.9	500
New K-factor	36	36	40	40
New floor	700.3	738.6	500	500

Item	Main	Standard
	0	0
	0	0
	5	5
	15	15
	0	0
	0	0
History	103	103

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
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	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	74	37	50	0	1040.8	1040.8
Standard	74	37	50	0	1040.8	1040.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1188.6	1217.4	840.9	500
2025-09-30	1188.6	1217.4	840.9	500
2025-09-01	1188.6	1217.4	840.9	500
2025-08-01	1188.6	1217.4	840.9	500
2025-07-01	1188.6	1217.4	840.9	500
2025-06-01	1188.6	1217.4	840.9	500
2025-05-01	1188.3	1217.3	840.9	500
2025-04-01	1187.9	1217	840.9	500
2025-03-01	1187.3	1216.5	840.9	500
2025-02-01	1186.9	1215.8	840.9	500
2025-01-01	1186.9	1213.4	840.9	500
2024-12-01	1186.9	1213.4	840.9	500
2024-11-01	1186.9	1213.4	840.9	500
2024-10-01	1186.9	1213.4	840.9	500
2024-09-01	1186.9	1213.4	840.9	500
2024-08-01	1186.9	1213.4	840.9	500
2024-07-01	1186.9	1213.4	840.9	500
2024-09-01	1186.9	1213.4	840.9	500
2024-05-01	1186.9	1213.4	840.9	500
2024-04-01	1186.9	1213.4	840.9	500
2024-03-01	1186.9	1213.4	840.9	500
2024-02-01	1200.3	1238.6	840.9	500
2024-01-01	1200.3	1238.6	840.9	500
2023-12-01	1200.3	1238.6	500	500

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	Grey College Team Championship 2024 (B)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
2	4th BC HS Trials 2023 (U18A-Adult)	2023-08-26	2023-08-26	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	Grey College Team Championship 2023 (B)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	4	Yes	Analysis
4	Senior Vikings 2023 (U18A)	2023-02-11	2023-02-11	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
5	Buffalo City Trials 3 of 5 2019 (U14A)	2019-04-13	2019-04-13	Standard	Buffalo City (EBC)	5	5	1	Yes	Analysis
6	Buffalo City Trials 1 of 5 2019 (U14)	2019-02-09	2019-02-09	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
7	South African Junior Team Championships 2018 (U14E)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
8	5th Vikings League 2018 (A)	2018-11-01	2018-11-01	Standard	Buffalo City (EBC)	5	4	0.5	Yes	Analysis
9	4th Vikings League 208 (B)	2018-10-18	2018-10-18	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
10	Swiss Vikings vs South Park 1st 2018	2018-09-01	2018-09-01	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
11	Buffalo Open 29 September 2018	2018-09-29	2018-09-29	Standard	Buffalo City (EBC)	5	4	2	Yes	Analysis
12	1st Border Vikings Chess League 2018 (B)	2018-07-28	2018-07-28	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
13	5th Buffalo Trials 2018 (U14A)	2018-05-26	2018-05-26	Standard	Buffalo City (EBC)	5	4	1	Yes	Analysis
14	2nd Buffalo Trials 2018 (U14A)	2018-03-17	2018-03-17	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
15	Buffalo City 1st Chess Trials 2018 (U14B)	2018-02-17	2018-02-17	Standard	Buffalo City (EBC)	5	5	3.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-17	rnd 1	type Standard	result 1	date 2018-02-17	rnd 4	type Standard	result 1
		Opponent Nel, C (Christiaan)				Opponent Matayo, L (Liyema)
2	3	Tournament Senior Vikings 2023				Tournament 4th BC HS Trials 2023
		date 2023-02-11	rnd 5	type Standard	result 1	date 2023-08-26	rnd 2	type Standard	result 1
		Opponent Peter, K (Kamvalethu)				Opponent Mabhera, J (Jedidiah)
3	3	Tournament Grey College Team Championship 2023				Tournament Grey College Team Championship 2023
		date 2023-02-03	rnd 1	type Standard	result 1	date 2023-02-03	rnd 3	type Standard	result 1
		Opponent Jacobs, C (Christine)				Opponent Brown, X (Xavier)

#	Games	Start				End
1	4	Tournament Buffalo City 1st Chess Trials 2018				Tournament Buffalo City 1st Chess Trials 2018
		date 2018-02-17	rnd 1	type Standard	result 1	date 2018-02-17	rnd 4	type Standard	result 1
		Opponent Nel, C (Christiaan)				Opponent Matayo, L (Liyema)
2	3	Tournament Senior Vikings 2023				Tournament 4th BC HS Trials 2023
		date 2023-02-11	rnd 5	type Standard	result 1	date 2023-08-26	rnd 2	type Standard	result 1
		Opponent Peter, K (Kamvalethu)				Opponent Mabhera, J (Jedidiah)
3	3	Tournament Grey College Team Championship 2023				Tournament Grey College Team Championship 2023
		date 2023-02-03	rnd 1	type Standard	result 1	date 2023-02-03	rnd 3	type Standard	result 1
		Opponent Jacobs, C (Christine)				Opponent Brown, X (Xavier)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Senior Vikings 2023				Tournament 4th BC HS Trials 2023
		date 2023-02-11	rnd 5	type Standard	result 1	date 2023-08-26	rnd 2	type Standard	result 1
		Opponent Peter, K (Kamvalethu)				Opponent Mabhera, J (Jedidiah)
2	3	Tournament Grey College Team Championship 2023				Tournament Grey College Team Championship 2023
		date 2023-02-03	rnd 1	type Standard	result 1	date 2023-02-03	rnd 3	type Standard	result 1
		Opponent Jacobs, C (Christine)				Opponent Brown, X (Xavier)
3	3	Tournament 1st Border Vikings Chess League 2018				Tournament 1st Border Vikings Chess League 2018
		date 2018-07-28	rnd 1	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Mlungwan, E (Emihle)				Opponent Dove, M (Megan)

#	Games	Start				End
1	3	Tournament Senior Vikings 2023				Tournament 4th BC HS Trials 2023
		date 2023-02-11	rnd 5	type Standard	result 1	date 2023-08-26	rnd 2	type Standard	result 1
		Opponent Peter, K (Kamvalethu)				Opponent Mabhera, J (Jedidiah)
2	3	Tournament Grey College Team Championship 2023				Tournament Grey College Team Championship 2023
		date 2023-02-03	rnd 1	type Standard	result 1	date 2023-02-03	rnd 3	type Standard	result 1
		Opponent Jacobs, C (Christine)				Opponent Brown, X (Xavier)
3	3	Tournament 1st Border Vikings Chess League 2018				Tournament 1st Border Vikings Chess League 2018
		date 2018-07-28	rnd 1	type Standard	result 1	date 2018-07-28	rnd 3	type Standard	result 1
		Opponent Mlungwan, E (Emihle)				Opponent Dove, M (Megan)

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	Matayo ,L (Liyema)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Matayo ,L (Liyema)	3	946	946	3	948.8	946	0	0	0	0	0	0
2	Chang ,S (Samuel)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Chang ,S (Samuel)	2	1042.3	617.3	2	1038.9	617.3	0	0	0	0	0	0
3	Becker ,M (Matthew)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Becker ,M (Matthew)	2	1144.3	719.3	2	1137.8	719.3	0	0	0	0	0	0
4	Pafa ,A (Aqhama)	2	1	0	2	1	0	0	0	0	0	0	0
4	Pafa ,A (Aqhama)	2	1157.2	1157.2	2	1150.8	1157.2	0	0	0	0	0	0
5	Jikijela ,A (Anisha)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Jikijela ,A (Anisha)	2	1032.6	607.6	2	1007	607.6	0	0	0	0	0	0
6	Nel ,C (Christiaan)	2	1	0	2	1	0	0	0	0	0	0	0
6	Nel ,C (Christiaan)	2	1132.1	1132.1	2	1118.8	1132.1	0	0	0	0	0	0
7	Dove ,M (Megan)	2	1	0	2	1	0	0	0	0	0	0	0
7	Dove ,M (Megan)	2	1016.6	1016.6	2	1009.5	1016.6	0	0	0	0	0	0
8	Gwababa ,L (Langa)	2	1	0	2	1	0	0	0	0	0	0	0
8	Gwababa ,L (Langa)	2	1031.7	1031.7	2	1048.2	1031.7	0	0	0	0	0	0
9	Smith ,A (Andre)	1	1	425	1	1	425	0	0	0	0	0	0
9	Smith ,A (Andre)	1	1137.2	1562.2	1	1125.6	1562.2	0	0	0	0	0	0
10	John ,R (Ruben)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	John ,R (Ruben)	1	1294.3	869.3	1	1269.4	869.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Ngculana, Z (Zachuma)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms