Chess South Africa Ratings Database

PLAYER PAGE

Personal

Janse Van Vuuren, J (Johan)

Chess SA id

1070154433

FIDE id

Date of birth

2007-08-03 (U20)

Gender

Male

Region

West Rand (GWR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1223.3	1225.9	1200	1200
Raw rating	1223.3	1225.9	1200	1200
Weighted rating	1223.3	1225.9	1200	1200
Weighted performance	0	0	0	0
Floor	723.3	725.9	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	160.4	159.8	165.8	165.8
Highest rating	1256 2023-09-01	1333.3 2023-09-01	1208.2 2023-04-01	1200 2018-10-01
Highest raw rating	1223.3 2024-02-01	1225.9 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1223.3 2025-08-01	1225.9 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1256 2023-09-01	1333.3 2023-09-01	1208.2 2023-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1223.3	1225.9	1200	1200
Analysis
Rating	1223.3	1225.9	1200	1200
Raw rating	1223.3	1225.9	1200	1200
Weighted rating	1223.3	1225.9	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	723.3	725.9	700	700
Max/Min rating change allowed	160.4	159.8	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	1223.3	1225.9	1200	1200
New weighted rating	1223.3	1225.9	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1223.3	1225.9	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1223.3	1225.9	1200	1200
New K-factor	36	36	36	36
New floor	723.3	725.9	700	700

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

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	West Rand (GWR)
Province	Gauteng (GT)
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	11	6	54.55	38.6	1225.1	1263.7
Standard	5	3	60	85	1249	1334
Rapid	6	3	50	0	1205.2	1205.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1223.3	1225.9	1200	1200
2025-09-30	1223.3	1225.9	1200	1200
2025-09-01	1223.3	1225.9	1200	1200
2025-08-01	1223.3	1225.9	1200	1200
2025-07-01	1223.3	1225.9	1200	1200
2025-06-01	1223.3	1225.9	1200	1200
2025-05-01	1223.3	1225.9	1200	1200
2025-04-01	1223.3	1225.9	1200	1200
2025-03-01	1223.3	1225.9	1200	1200
2025-02-01	1223.3	1225.9	1200	1200
2025-01-01	1223.3	1225.9	1200	1200
2024-12-01	1223.3	1225.9	1200	1200
2024-11-01	1223.3	1225.9	1200	1200
2024-10-01	1223.3	1225.9	1200	1200
2024-09-01	1223.3	1225.9	1200	1200
2024-08-01	1223.3	1225.9	1200	1200
2024-07-01	1223.3	1225.9	1200	1200
2024-09-01	1223.3	1225.9	1200	1200
2024-05-01	1223.3	1225.9	1200	1200
2024-04-01	1223.3	1225.9	1200	1200
2024-03-01	1223.3	1225.9	1200	1200
2024-02-01	1223.3	1225.9	1200	1200
2024-01-01	1223.3	1225.9	1200	1200
2023-12-01	1223.3	1225.9	1200	1200

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	2023 West Rand Trials (U18)	2023-09-09	2023-09-09	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
2	NWU Super 16 2023 (B)	2023-04-21	2023-04-21	Rapid	Gert Sibande (MGS)	7	6	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2023 West Rand Trials				Tournament 2023 West Rand Trials
		date 2023-09-09	rnd 3	type Standard	result 1	date 2023-09-09	rnd 5	type Standard	result 0.5
		Opponent Idehen, M (Michael)				Opponent Ngakane, T (Tuelo)
2	2	Tournament NWU Super 16 2023				Tournament 2023 West Rand Trials
		date 2023-04-21	rnd 7	type Rapid	result 0.5	date 2023-09-09	rnd 1	type Standard	result 0.5
		Opponent Andrews, J (Jason)				Opponent Johnson, Z (Zunaid)
3	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 1	type Rapid	result 0.5	date 2023-04-21	rnd 2	type Rapid	result 1
		Opponent Watermeyer, L (Liane)				Opponent Badenhorst, A (Angelo)

#	Games	Start				End
1	3	Tournament 2023 West Rand Trials				Tournament 2023 West Rand Trials
		date 2023-09-09	rnd 3	type Standard	result 1	date 2023-09-09	rnd 5	type Standard	result 0.5
		Opponent Idehen, M (Michael)				Opponent Ngakane, T (Tuelo)
2	1	Tournament 2023 West Rand Trials				Tournament 2023 West Rand Trials
		date 2023-09-09	rnd 1	type Standard	result 0.5	date 2023-09-09	rnd 1	type Standard	result 0.5
		Opponent Johnson, Z (Zunaid)				Opponent Johnson, Z (Zunaid)

#	Games	Start				End
1	2	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 1	type Rapid	result 0.5	date 2023-04-21	rnd 2	type Rapid	result 1
		Opponent Watermeyer, L (Liane)				Opponent Badenhorst, A (Angelo)
2	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 7	type Rapid	result 0.5	date 2023-04-21	rnd 7	type Rapid	result 0.5
		Opponent Andrews, J (Jason)				Opponent Andrews, J (Jason)
3	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 5	type Rapid	result 1
		Opponent Pretorius, X (Xuan)				Opponent Pretorius, X (Xuan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2023 West Rand Trials				Tournament 2023 West Rand Trials
		date 2023-09-09	rnd 3	type Standard	result 1	date 2023-09-09	rnd 4	type Standard	result 1
		Opponent Idehen, M (Michael)				Opponent Mohlala, T (Tshepang)
2	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 5	type Rapid	result 1
		Opponent Pretorius, X (Xuan)				Opponent Pretorius, X (Xuan)
3	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 2	type Rapid	result 1	date 2023-04-21	rnd 2	type Rapid	result 1
		Opponent Badenhorst, A (Angelo)				Opponent Badenhorst, A (Angelo)

#	Games	Start				End
1	2	Tournament 2023 West Rand Trials				Tournament 2023 West Rand Trials
		date 2023-09-09	rnd 3	type Standard	result 1	date 2023-09-09	rnd 4	type Standard	result 1
		Opponent Idehen, M (Michael)				Opponent Mohlala, T (Tshepang)

#	Games	Start				End
1	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 5	type Rapid	result 1	date 2023-04-21	rnd 5	type Rapid	result 1
		Opponent Pretorius, X (Xuan)				Opponent Pretorius, X (Xuan)
2	1	Tournament NWU Super 16 2023				Tournament NWU Super 16 2023
		date 2023-04-21	rnd 2	type Rapid	result 1	date 2023-04-21	rnd 2	type Rapid	result 1
		Opponent Badenhorst, A (Angelo)				Opponent Badenhorst, A (Angelo)

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	Johnson ,Z (Zunaid)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Johnson ,Z (Zunaid)	1	1191.3	1191.3	1	1187	1191.3	0	0	0	0	0	0
2	Ngakane ,T (Tuelo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Ngakane ,T (Tuelo)	1	1509.7	1509.7	1	1500.9	1509.7	0	0	0	0	0	0
3	Pauwels ,P (Piper)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Pauwels ,P (Piper)	1	1144.2	719.2	1	1135.6	719.2	0	0	0	0	0	0
4	Idehen ,M (Michael)	1	1	425	1	1	425	0	0	0	0	0	0
4	Idehen ,M (Michael)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Mohlala ,T (Tshepang)	1	1	425	1	1	425	0	0	0	0	0	0
5	Mohlala ,T (Tshepang)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Pretorius ,X (Xuan)	1	1	425	0	0	0	1	1	425	0	0	0
6	Pretorius ,X (Xuan)	1	1195.9	1620.9	0	0	0	1	1200	1620.9	0	0	0
7	Badenhorst ,A (Angelo)	1	1	425	0	0	0	1	1	425	0	0	0
7	Badenhorst ,A (Angelo)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Andrews ,J (Jason)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
8	Andrews ,J (Jason)	1	1235.4	1235.4	0	0	0	1	1200	1235.4	0	0	0
9	Coetzee ,D (Dyllin)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Coetzee ,D (Dyllin)	1	1200	775	0	0	0	1	1200	775	0	0	0
10	Gwitima ,B (Barney)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Gwitima ,B (Barney)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Janse Van Vuuren, J (Johan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms