Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Zyl, J (Jackobus)

Chess SA id

103068725

FIDE id

Date of birth

2003-04-02 (Adult)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-04-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	921.5	864.7	959.1	864.7
Raw rating	921.5	864.7	959.1	864.7
Weighted rating	921.5	864.7	959.1	864.7
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	246.6	267.4	233.7	267.4
Highest rating	1225.2 2023-04-01	1200 2024-02-01	1212.2 2023-04-01	1200 2024-02-01
Highest raw rating	921.5 2024-02-01	864.7 2024-02-01	959.1 2024-02-01	864.7 2024-02-01
Highest weighted rating	921.5 2024-11-01	864.7 2024-11-01	959.1 2024-11-01	864.7 2024-11-01
Highest weighted performance	1225.2 2023-04-01	1200 2024-02-01	1212.2 2023-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	921.5	864.7	959.1	864.7
Analysis
Rating	921.5	864.7	959.1	864.7
Raw rating	921.5	864.7	959.1	864.7
Weighted rating	921.5	864.7	959.1
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	246.6	267.4	233.7	267.4
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	921.5	864.7	959.1	864.7
New weighted rating	921.5	864.7	959.1	864.7
New weighted performance	0	0	0	0
Temp new rating	921.5	864.7	959.1	864.7
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	921.5	864.7	959.1	864.7
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	6	0	6
	0	0	0
	0	0	0
History	42	26	16

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	6	3	50	0	1280.5	1280.5
Standard	0	0	0	0	0	0
Rapid	6	3	50	0	1280.5	1280.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	921.5	864.7	959.1	864.7
2025-09-30	921.5	864.7	959.1	864.7
2025-09-01	921.5	864.7	959.1	864.7
2025-08-01	921.5	864.7	959.1	864.7
2025-07-01	921.5	864.7	959.1	864.7
2025-06-01	921.5	864.7	959.1	864.7
2025-05-01	921.5	864.7	959.1	864.7
2025-04-01	921.5	864.7	959.1	864.7
2025-03-01	921.5	864.7	959.1	864.7
2025-02-01	921.5	864.7	959.1	864.7
2025-01-01	921.5	864.7	959.1	864.7
2024-12-01	921.5	864.7	959.1	864.7
2024-11-01	921.5	864.7	959.1	864.7
2024-10-01	921.5	864.7	959.1	864.7
2024-09-01	921.5	864.7	959.1	864.7
2024-08-01	921.5	864.7	959.1	864.7
2024-07-01	921.5	864.7	959.1	864.7
2024-09-01	921.5	864.7	959.1	864.7
2024-05-01	921.5	864.7	959.1	864.7
2024-04-01	921.5	864.7	959.1	864.7
2024-03-01	921.5	864.7	959.1	864.7
2024-02-01	921.5	864.7	959.1	864.7
2024-01-01	921.5	864.7	959.1	864.7
2023-12-01	921.5	864.7	959.1	864.7

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	Hermanus Rapid 2023 (B)	2023-04-22	2023-04-22	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 6	type Rapid	result 1
		Opponent Hlanzela, M (Milani)				Opponent Badenhorst, A (Allen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 6	type Rapid	result 1
		Opponent Hlanzela, M (Milani)				Opponent Badenhorst, A (Allen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 6	type Rapid	result 1
		Opponent Hlanzela, M (Milani)				Opponent Badenhorst, A (Allen)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Hermanus Rapid 2023				Tournament Hermanus Rapid 2023
		date 2023-04-22	rnd 4	type Rapid	result 1	date 2023-04-22	rnd 6	type Rapid	result 1
		Opponent Hlanzela, M (Milani)				Opponent Badenhorst, A (Allen)

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	Stander ,D (Divan)	1	0	-425	0	0	0	1	0	-425	0	0	0
1	Stander ,D (Divan)	1	1303.4	878.4	0	0	0	1	1185.6	878.4	0	0	0
2	Badenhorst ,A (Allen)	1	1	425	0	0	0	1	1	425	0	0	0
2	Badenhorst ,A (Allen)	1	1137.7	1562.7	0	0	0	1	1141.8	1562.7	0	0	0
3	Alves ,J (Jade)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Alves ,J (Jade)	1	1313	888	0	0	0	1	1256.4	888	0	0	0
4	Hlanzela ,M (Milani)	1	1	425	0	0	0	1	1	425	0	0	0
4	Hlanzela ,M (Milani)	1	1287.1	1712.1	0	0	0	1	1155.6	1712.1	0	0	0
5	Pretorius ,S (Sonya)	1	1	425	0	0	0	1	1	425	0	0	0
5	Pretorius ,S (Sonya)	1	1162	1587	0	0	0	1	1165.2	1587	0	0	0
6	Ntontelo ,K (Khazimla)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Ntontelo ,K (Khazimla)	1	1479.8	1054.8	0	0	0	1	1316.6	1054.8	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Van Zyl, J (Jackobus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms