Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jonck, W (Wihan)

Chess SA id

1150309369

FIDE id

Date of birth

2015-02-16 (U12)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-12

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

896.4

Item	Main	Standard	Rapid	Blitz
Rating	1177.1	1172.8	1200	1200
Raw rating	1177.1	1172.8	1200	1200
Weighted rating	1175.3	1170.7	1200	1200
Weighted performance	860.8	860.9	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	171.3	172.4	165.8	165.8
Highest rating	1200 2024-08-01	1200 2024-08-01	1200 2024-08-01	1200 2024-08-01
Highest raw rating	1200 2024-08-01	1200 2024-08-01	1200 2024-08-01	1200 2024-08-01
Highest weighted rating	1200 2024-08-01	1200 2024-08-01	1200 2024-08-01	1200 2024-08-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-08-01	1200 2024-08-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1177.1	1172.8	1200	1200
Analysis
Rating	1177.1	1172.8	1200	1200
Raw rating	1177.1	1172.8	1200	1200
Weighted rating	1175.3	1170.7	1200
Weighted performance	860.8	860.9	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	171.3	172.4	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	1177.1	1172.8	1200	1200
New weighted rating	1175	1170.3	1200	1200
New weighted performance	860.5	860.6	0	0
Temp new rating	1177.1	1172.8	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1177.1	1172.8	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	16	16
	11	11
	0	0
	0	0
	0	0
History	27	27

Games since
	Main 27	Standard 27		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	16	2	12.5	-318.8	1218.4	899.7
Standard	16	2	12.5	-318.8	1218.4	899.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	27	5.5	20.37	-251.9	1228.6	976.7
Standard	27	5.5	20.37	-251.9	1228.6	976.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1177.1	1172.8	1200	1200
2025-09-01	1177.1	1172.8	1200	1200
2025-08-01	1177.1	1172.8	1200	1200
2025-07-01	1177.1	1172.8	1200	1200
2025-06-01	1177.1	1172.8	1200	1200
2025-05-01	1174	1169	1200	1200
2025-04-01	1174.8	1169.9	1200	1200
2025-03-01	1176.5	1172	1200	1200
2025-02-01	1178.9	1174.9	1200	1200
2025-01-01	1150.9	1141.6	1200	1200
2024-12-01	1150.9	1141.6	1200	1200
2024-11-01	1150.9	1141.6	1200	1200
2024-10-01	1150.9	1141.6	1200	1200
2024-09-01	1150.9	1141.6	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	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	NMB 3rd Trials 2025 (U12)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	5	0.5	Yes	Analysis
2	NMB 2nd Trials 2025 (U12)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	1	Yes	Analysis
3	Pearson High Chess Festival 2025 (C)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	0.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	NMB 3rd Trials 2025 (U12)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	5	0.5	Yes	Analysis
2	NMB 2nd Trials 2025 (U12)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	1	Yes	Analysis
3	Pearson High Chess Festival 2025 (C)	2025-02-21	2025-02-22	Standard	Nelson Mandela Bay (ENM)	5	5	0.5	Yes	Analysis
4	NMBCU Trial 5 2024 (U8+U10)	2024-08-16	2024-08-17	Standard	Nelson Mandela Bay (ENM)	6	5	1.5	Yes	Analysis
5	NMB Open 2024 (C)	2024-08-03	2024-08-03	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis

#	Games	Start				End
1	1	Tournament NMB 3rd Trials 2025				Tournament NMB 3rd Trials 2025
		date 2025-04-12	rnd 5	type Standard	result 0.5	date 2025-04-12	rnd 5	type Standard	result 0.5
		Opponent Brown, Z (Zachery)				Opponent Brown, Z (Zachery)
2	1	Tournament NMB 2nd Trials 2025				Tournament NMB 2nd Trials 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Bezuidenhout, J (Jarrod)				Opponent Bezuidenhout, J (Jarrod)
3	1	Tournament Pearson High Chess Festival 2025				Tournament Pearson High Chess Festival 2025
		date 2025-02-22	rnd 3	type Standard	result 0.5	date 2025-02-22	rnd 3	type Standard	result 0.5
		Opponent Mrasi, S (Silobonile)				Opponent Mrasi, S (Silobonile)

#	Games	Start				End
1	1	Tournament NMB 3rd Trials 2025				Tournament NMB 3rd Trials 2025
		date 2025-04-12	rnd 5	type Standard	result 0.5	date 2025-04-12	rnd 5	type Standard	result 0.5
		Opponent Brown, Z (Zachery)				Opponent Brown, Z (Zachery)
2	1	Tournament NMB 2nd Trials 2025				Tournament NMB 2nd Trials 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Bezuidenhout, J (Jarrod)				Opponent Bezuidenhout, J (Jarrod)
3	1	Tournament Pearson High Chess Festival 2025				Tournament Pearson High Chess Festival 2025
		date 2025-02-22	rnd 3	type Standard	result 0.5	date 2025-02-22	rnd 3	type Standard	result 0.5
		Opponent Mrasi, S (Silobonile)				Opponent Mrasi, S (Silobonile)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament NMB 2nd Trials 2025				Tournament NMB 2nd Trials 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Bezuidenhout, J (Jarrod)				Opponent Bezuidenhout, J (Jarrod)
2	1	Tournament NMBCU Trial 5 2024				Tournament NMBCU Trial 5 2024
		date 2024-08-17	rnd 6	type Standard	result 1	date 2024-08-17	rnd 6	type Standard	result 1
		Opponent Mitchell, N (Nicholas)				Opponent Mitchell, N (Nicholas)
3	1	Tournament NMB Open 2024				Tournament NMB Open 2024
		date 2024-08-03	rnd 6	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 1
		Opponent Blouw, Z (Zubenathi)				Opponent Blouw, Z (Zubenathi)

#	Games	Start				End
1	1	Tournament NMB 2nd Trials 2025				Tournament NMB 2nd Trials 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Bezuidenhout, J (Jarrod)				Opponent Bezuidenhout, J (Jarrod)
2	1	Tournament NMBCU Trial 5 2024				Tournament NMBCU Trial 5 2024
		date 2024-08-17	rnd 6	type Standard	result 1	date 2024-08-17	rnd 6	type Standard	result 1
		Opponent Mitchell, N (Nicholas)				Opponent Mitchell, N (Nicholas)
3	1	Tournament NMB Open 2024				Tournament NMB Open 2024
		date 2024-08-03	rnd 6	type Standard	result 1	date 2024-08-03	rnd 6	type Standard	result 1
		Opponent Blouw, Z (Zubenathi)				Opponent Blouw, Z (Zubenathi)

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	Brown ,Z (Zachery)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
1	Brown ,Z (Zachery)	2	1202.5	990	2	1198	990	0	0	0	0	0	0
2	Abrahams ,L (Levi)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Abrahams ,L (Levi)	2	1195.4	982.9	2	1197.7	982.9	0	0	0	0	0	0
3	Sternberg ,N (Nicolas)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Sternberg ,N (Nicolas)	1	1250.5	825.5	1	1258.9	825.5	0	0	0	0	0	0
4	Cerfonteyn ,R (Raees)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Cerfonteyn ,R (Raees)	1	1353.9	928.9	1	1358.7	928.9	0	0	0	0	0	0
5	Ntsilatana ,Y (Yothando)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Ntsilatana ,Y (Yothando)	1	1269.7	844.7	1	1266.5	844.7	0	0	0	0	0	0
6	Blouw ,Z (Zubenathi)	1	1	425	1	1	425	0	0	0	0	0	0
6	Blouw ,Z (Zubenathi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Mitchell ,N (Nicholas)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mitchell ,N (Nicholas)	1	1225.3	1650.3	1	1217.3	1650.3	0	0	0	0	0	0
8	Dikana ,I (Inam)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Dikana ,I (Inam)	1	1199.8	774.8	1	1199.7	774.8	0	0	0	0	0	0
9	Njengele ,L (Lilitha)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Njengele ,L (Lilitha)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Verwey ,M (Malan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Verwey ,M (Malan)	1	1381	956	1	1414	956	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

Jonck, W (Wihan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms