Chess South Africa Ratings Database

PLAYER PAGE

Personal

Janse Van Vuuren, D (Demicke)

Chess SA id

2150145699

FIDE id

Date of birth

2015-01-02 (U12)

Gender

Female

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1197.6

Item	Main	Standard	Rapid	Blitz
Rating	1151.7	1144.7	1200	1200
Raw rating	1146.4	1141.7	1200	1200
Weighted rating	1151.7	1144.7	1200	1200
Weighted performance	1060.5	1063	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	179	180.2	165.8	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.3	0	0
New rating	1151.7	1145	1200	1200
Analysis
Rating	1151.7	1144.7	1200	1200
Raw rating	1146.4	1141.7	1200	1200
Weighted rating	1151.7	1144.7	1200
Weighted performance	1060.5	1063	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	179	180.2	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	1146.4	1141.7	1200	1200
New weighted rating	1151.7	1145	1200	1200
New weighted performance	1053.8	1056.3	0	0
Temp new rating	1151.7	1145	1200	1200
Temp new rating +/-	0	0.3	0	0
Final new rating +/-	0	0.3	0	0
New rating	1151.7	1145	1200	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard
	0	0
	16	16
	0	0
	5	5
	4	4
	0	0
History	25	25

Games since
	Main 16	Standard 16		Rapid 0		Blitz 0
Gender	Female
Age group	U12
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	16	7	43.75	-53.1	1232.7	1179.5
Standard	16	7	43.75	-53.1	1232.7	1179.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	25	9.5	38	-102	1220.6	1118.6
Standard	25	9.5	38	-102	1220.6	1118.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1146.4	1141.7	1200	1200
2025-09-30	1168.2	1165.8	1200	1200
2025-09-01	1168.2	1165.8	1200	1200
2025-08-01	1178	1177.1	1200	1200
2025-07-01	1178	1177.1	1200	1200
2025-06-01	1178	1177.1	1200	1200
2025-05-01	1139.7	1129.2	1200	1200
2025-04-01	1139.7	1129.2	1200	1200
2025-03-01	1139.7	1129.2	1200	1200
2025-02-01	1139.7	1129.2	1200	1200
2025-01-01	1138.3	1127.6	1200	1200
2024-12-01	1138.3	1127.6	1200	1200
2024-11-01	1138.3	1127.6	1200	1200
2024-10-01	1138.3	1127.6	1200	1200
2024-09-01	1138.3	1127.6	1200	1200
2024-08-01	1138.3	1127.6	1200	1200
2024-07-01	1138.3	1127.6	1200	1200
2024-09-01	1138.3	1127.6	1200	1200
2024-05-01	1138.3	1127.6	1200	1200
2024-04-01	1138.3	1127.6	1200	1200
2024-03-01	1138.3	1127.6	1200	1200
2024-02-01	1138.3	1127.6	1200	1200
2024-01-01	1138.3	1127.6	1200	1200
2023-12-01	1138.3	1127.6	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	2025 Gauteng Top Schools Teams (U13 Girls)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2025 Gauteng Schools Provincial Individual Chess Championship (U11 Girls)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
3	D5 Teams 2025 (U13 Girls)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	3	3	1	Yes	Analysis
4	D5 Anker 2025 (U11 Girls)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	4	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Gauteng Top Schools Teams (U13 Girls)	2025-08-29	2025-08-29	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
2	2025 Gauteng Schools Provincial Individual Chess Championship (U11 Girls)	2025-09-27	2025-09-27	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
3	D5 Teams 2025 (U13 Girls)	2025-08-16	2025-08-16	Standard	Ekurhuleni (GE)	3	3	1	Yes	Analysis
4	D5 Anker 2025 (U11 Girls)	2025-05-17	2025-05-17	Standard	Ekurhuleni (GE)	5	4	3	Yes	Analysis
5	2023 Gauteng Top Schools (U13 Girls)	2023-08-18	2023-08-18	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
6	2022 Gauteng Schools Team Championships (U9 Open)	2022-08-27	2022-08-27	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament D5 Anker 2025				Tournament D5 Anker 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-05-17	rnd 5	type Standard	result 1
		Opponent Jacobie, M (Megan)				Opponent Herbst, D (Delanie)
2	1	Tournament 2025 Gauteng Schools Provincial Individual Chess Championship				Tournament 2025 Gauteng Schools Provincial Individual Chess Championship
		date 2025-09-27	rnd 4	type Standard	result 1	date 2025-09-27	rnd 4	type Standard	result 1
		Opponent Krige, G (Grace)				Opponent Krige, G (Grace)
3	1	Tournament 2025 Gauteng Top Schools Teams				Tournament 2025 Gauteng Top Schools Teams
		date 2025-08-29	rnd 5	type Standard	result 1	date 2025-08-29	rnd 5	type Standard	result 1
		Opponent Khumalo, R (Reanetse)				Opponent Khumalo, R (Reanetse)

#	Games	Start				End
1	3	Tournament D5 Anker 2025				Tournament D5 Anker 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-05-17	rnd 5	type Standard	result 1
		Opponent Jacobie, M (Megan)				Opponent Herbst, D (Delanie)
2	1	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Ebersohn, C (Chrisne)				Opponent Ebersohn, C (Chrisne)
3	1	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-18	rnd 5	type Standard	result 1	date 2023-08-18	rnd 5	type Standard	result 1
		Opponent Mabote, T (Tshegofatso)				Opponent Mabote, T (Tshegofatso)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament D5 Anker 2025				Tournament D5 Anker 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-05-17	rnd 5	type Standard	result 1
		Opponent Jacobie, M (Megan)				Opponent Herbst, D (Delanie)
2	1	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Ebersohn, C (Chrisne)				Opponent Ebersohn, C (Chrisne)
3	1	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-18	rnd 5	type Standard	result 1	date 2023-08-18	rnd 5	type Standard	result 1
		Opponent Mabote, T (Tshegofatso)				Opponent Mabote, T (Tshegofatso)

#	Games	Start				End
1	3	Tournament D5 Anker 2025				Tournament D5 Anker 2025
		date 2025-05-17	rnd 3	type Standard	result 1	date 2025-05-17	rnd 5	type Standard	result 1
		Opponent Jacobie, M (Megan)				Opponent Herbst, D (Delanie)
2	1	Tournament D5 Teams 2025				Tournament D5 Teams 2025
		date 2025-08-16	rnd 3	type Standard	result 1	date 2025-08-16	rnd 3	type Standard	result 1
		Opponent Ebersohn, C (Chrisne)				Opponent Ebersohn, C (Chrisne)
3	1	Tournament 2023 Gauteng Top Schools				Tournament 2023 Gauteng Top Schools
		date 2023-08-18	rnd 5	type Standard	result 1	date 2023-08-18	rnd 5	type Standard	result 1
		Opponent Mabote, T (Tshegofatso)				Opponent Mabote, T (Tshegofatso)

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	Ebersohn ,C (Chrisne)	2	1	0	2	1	0	0	0	0	0	0	0
1	Ebersohn ,C (Chrisne)	2	1236.4	1236.4	2	1243	1236.4	0	0	0	0	0	0
2	Sithole ,O (Onthatile)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Sithole ,O (Onthatile)	1	1231	806	1	1238	806	0	0	0	0	0	0
3	Khumalo ,R (Reanetse)	1	1	425	1	1	425	0	0	0	0	0	0
3	Khumalo ,R (Reanetse)	1	1200.4	1625.4	1	1200.3	1625.4	0	0	0	0	0	0
4	Maloka ,B (Bohlale)	1	1	425	1	1	425	0	0	0	0	0	0
4	Maloka ,B (Bohlale)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Pieters ,I (Imrich)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Pieters ,I (Imrich)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Mofokeng ,L (Lesedi)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Mofokeng ,L (Lesedi)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
7	Opperman ,J (Jordan)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Opperman ,J (Jordan)	1	1194.9	769.9	1	1190.4	769.9	0	0	0	0	0	0
8	Haupfleish ,I (Isabella)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Haupfleish ,I (Isabella)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Belle ,U (Unathi)	1	1	425	1	1	425	0	0	0	0	0	0
9	Belle ,U (Unathi)	1	1211.6	1636.6	1	1216.1	1636.6	0	0	0	0	0	0
10	Pretorius ,S (Stefan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Pretorius ,S (Stefan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

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PLAYER PAGE

Personal

Janse Van Vuuren, D (Demicke)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms