Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Tonder, J (Jana)

Chess SA id

2180324578

FIDE id

Date of birth

2018-04-07 (U8)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1196	1197.5	1195.6	1200
Raw rating	1188.2	1193.9	1181	1200
Weighted rating	1196	1197.5	1195.6	1200
Weighted performance	0	0	0	0
Floor	699.9	699.9	699.9	700
K-factor	40	40	40	40
Min/Max rating change allowed	168.6	167.3	170.4	165.8
Highest rating	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05
Highest raw rating	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05
Highest weighted rating	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05	1199.9 2025-08-05
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.8	-0.4	-1.3	0
New rating	1195.3	1197.1	1194.3	1200
Analysis
Rating	1196	1197.5	1195.6	1200
Raw rating	1188.2	1193.9	1181	1200
Weighted rating	1196	1197.5	1195.6
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	699.9	699.9	699.9	700
Max/Min rating change allowed	168.6	167.3	170.4	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	1188.2	1193.9	1181	1200
New weighted rating	1195.3	1197.1	1194.3	1200
New weighted performance	0	0	0	0
Temp new rating	1195.3	1197.1	1194.3	1200
Temp new rating +/-	-0.8	-0.4	-1.3	0
Final new rating +/-	-0.8	-0.4	-1.3	0
New rating	1195.3	1197.1	1194.3	1200
New K-factor	40	40	40	36
New floor	699.9	699.9	699.9	700

Item	Main	Standard	Rapid
	0	0	0
	11	6	5
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	11	6	5

Games since
	Main 11	Standard 6		Rapid 5		Blitz 0
Gender	Female
Age group	U8
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U8	-1		-1		-1
U8 Female	-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	11	5	45.45	-38.6	1200.3	1161.6
Standard	6	3	50	0	1194.3	1194.3
Rapid	5	2	40	-85	1207.4	1122.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	5	45.45	-38.6	1200.3	1161.6
Standard	6	3	50	0	1194.3	1194.3
Rapid	5	2	40	-85	1207.4	1122.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1188.2	1193.9	1181	1200
2025-09-30	1188.2	1193.9	1181	1200
2025-09-01	1171.2	1178.3	1181	1200
2025-08-01	1200	1200	1200	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	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

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	Western Cape Schools - Top Schools 2025 (U9 Girls)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	3	Yes	Analysis
2	Curro Chess Open Rapid 2025 (U8)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
3	Cape Town Metro North Top Schools 2025 (U9+U11 Girls)	2025-08-02	2025-08-02	Standard	Cape Town (WCT)	3	1	0	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U9 Girls)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	3	Yes	Analysis
2	Curro Chess Open Rapid 2025 (U8)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	5	2	Yes	Analysis
3	Cape Town Metro North Top Schools 2025 (U9+U11 Girls)	2025-08-02	2025-08-02	Standard	Cape Town (WCT)	3	1	0	Yes	Analysis

#	Games	Start				End
1	2	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Press, B (Bella)				Opponent Fourie, L (Lilly Ann)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-06	rnd 3	type Standard	result 1
		Opponent Koppies, U (Unako)				Opponent Koppies, U (Unako)
3	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 6	type Rapid	result 1
		Opponent Varadharajan, T (Theeran)				Opponent Varadharajan, T (Theeran)

#	Games	Start				End
1	2	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Press, B (Bella)				Opponent Fourie, L (Lilly Ann)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-06	rnd 3	type Standard	result 1
		Opponent Koppies, U (Unako)				Opponent Koppies, U (Unako)

#	Games	Start				End
1	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 6	type Rapid	result 1
		Opponent Varadharajan, T (Theeran)				Opponent Varadharajan, T (Theeran)
2	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Keita, B (Bakary)				Opponent Keita, B (Bakary)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Press, B (Bella)				Opponent Fourie, L (Lilly Ann)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-06	rnd 3	type Standard	result 1
		Opponent Koppies, U (Unako)				Opponent Koppies, U (Unako)
3	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 6	type Rapid	result 1
		Opponent Varadharajan, T (Theeran)				Opponent Varadharajan, T (Theeran)

#	Games	Start				End
1	2	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Press, B (Bella)				Opponent Fourie, L (Lilly Ann)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-06	rnd 3	type Standard	result 1	date 2025-09-06	rnd 3	type Standard	result 1
		Opponent Koppies, U (Unako)				Opponent Koppies, U (Unako)

#	Games	Start				End
1	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 6	type Rapid	result 1	date 2025-08-23	rnd 6	type Rapid	result 1
		Opponent Varadharajan, T (Theeran)				Opponent Varadharajan, T (Theeran)
2	1	Tournament Curro Chess Open Rapid 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Keita, B (Bakary)				Opponent Keita, B (Bakary)

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	Koppies ,U (Unako)	1	1	425	1	1	425	0	0	0	0	0	0
1	Koppies ,U (Unako)	1	1199	1624	1	1198.9	1624	0	0	0	0	0	0
2	Press ,B (Bella)	1	1	425	1	1	425	0	0	0	0	0	0
2	Press ,B (Bella)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Tsobo ,L (Luminathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Tsobo ,L (Luminathi)	1	1268.2	843.2	1	1231.8	843.2	0	0	0	0	0	0
4	Braaf ,G (Gabriella)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Braaf ,G (Gabriella)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Fortuin ,M (Mia)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Fortuin ,M (Mia)	1	1160.6	735.6	1	1094	735.6	0	0	0	0	0	0
6	Fourie ,L (Lilly Ann)	1	1	425	1	1	425	0	0	0	0	0	0
6	Fourie ,L (Lilly Ann)	1	1138.3	1563.3	1	1134.3	1563.3	0	0	0	0	0	0
7	Ajmoodien ,Y (Yusuf)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Ajmoodien ,Y (Yusuf)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Keita ,B (Bakary)	1	1	425	0	0	0	1	1	425	0	0	0
8	Keita ,B (Bakary)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Varadharajan ,T (Theeran)	1	1	425	0	0	0	1	1	425	0	0	0
9	Varadharajan ,T (Theeran)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Malherbe ,A (Aasha)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Malherbe ,A (Aasha)	1	1213.2	788.2	0	0	0	1	1253.2	788.2	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Van Tonder, J (Jana)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms