Chess South Africa Ratings Database

PLAYER PAGE

Personal

Viljoen, J (Juan)

Chess SA id

1080155447

FIDE id

Date of birth

2008-07-11 (U18)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-05-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1230.2	1236	1200	1200
Raw rating	1230.2	1236	1200	1200
Weighted rating	1230.2	1236	1200	1200
Weighted performance	0	0	0	0
Floor	730.2	736	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.8	157.5	165.8	165.8
Highest rating	1296.4 2023-05-01	1295.5 2023-05-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1230.2 2024-02-01	1236 2024-02-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1230.2 2025-04-01	1236 2025-04-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1296.4 2023-05-01	1295.5 2023-05-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1230.2	1236	1200	1200
Analysis
Rating	1230.2	1236	1200	1200
Raw rating	1230.2	1236	1200	1200
Weighted rating	1230.2	1236	1200
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	730.2	736	700	700
Max/Min rating change allowed	158.8	157.5	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	1230.2	1236	1200	1200
New weighted rating	1230.2	1236	1200	1200
New weighted performance	0	0	0	0
Temp new rating	1230.2	1236	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1230.2	1236	1200	1200
New K-factor	36	36	36	36
New floor	730.2	736	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	10	10
	0	0
	0	0
History	10	10

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	10	6	60	85	1200.7	1285.7
Standard	10	6	60	85	1200.7	1285.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1230.2	1236	1200	1200
2025-09-30	1230.2	1236	1200	1200
2025-09-01	1230.2	1236	1200	1200
2025-08-01	1230.2	1236	1200	1200
2025-07-01	1230.2	1236	1200	1200
2025-06-01	1230.2	1236	1200	1200
2025-05-01	1230.2	1236	1200	1200
2025-04-01	1230.2	1236	1200	1200
2025-03-01	1230.2	1236	1200	1200
2025-02-01	1230.2	1236	1200	1200
2025-01-01	1230.2	1236	1200	1200
2024-12-01	1230.2	1236	1200	1200
2024-11-01	1230.2	1236	1200	1200
2024-10-01	1230.2	1236	1200	1200
2024-09-01	1230.2	1236	1200	1200
2024-08-01	1230.2	1236	1200	1200
2024-07-01	1230.2	1236	1200	1200
2024-09-01	1230.2	1236	1200	1200
2024-05-01	1230.2	1236	1200	1200
2024-04-01	1230.2	1236	1200	1200
2024-03-01	1230.2	1236	1200	1200
2024-02-01	1230.2	1236	1200	1200
2024-01-01	1230.2	1236	1200	1200
2023-12-01	1230.2	1236	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	D8 Schools Individuals 2023 (U15 Boys)	2023-05-20	2023-05-20	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
2	Gauteng Schools Individual Finals 2023 (U15 Boys)	2023-05-27	2023-05-27	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament D8 Schools Individuals 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-20	rnd 3	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Madigoe, M (Magabe)				Opponent Madlabane, N (Ntando)
2	2	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 2	type Standard	result 1	date 2023-05-27	rnd 3	type Standard	result 1
		Opponent Mohale, O (Oscar Matheola)				Opponent Rakgalakane, T (Thato)
3	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 5	type Standard	result 1	date 2023-05-27	rnd 5	type Standard	result 1
		Opponent Eziama, C (Chinonyelum Devine Favour)				Opponent Eziama, C (Chinonyelum Devine Favour)

#	Games	Start				End
1	3	Tournament D8 Schools Individuals 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-20	rnd 3	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Madigoe, M (Magabe)				Opponent Madlabane, N (Ntando)
2	2	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 2	type Standard	result 1	date 2023-05-27	rnd 3	type Standard	result 1
		Opponent Mohale, O (Oscar Matheola)				Opponent Rakgalakane, T (Thato)
3	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 5	type Standard	result 1	date 2023-05-27	rnd 5	type Standard	result 1
		Opponent Eziama, C (Chinonyelum Devine Favour)				Opponent Eziama, C (Chinonyelum Devine Favour)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament D8 Schools Individuals 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-20	rnd 3	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Madigoe, M (Magabe)				Opponent Madlabane, N (Ntando)
2	2	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 2	type Standard	result 1	date 2023-05-27	rnd 3	type Standard	result 1
		Opponent Mohale, O (Oscar Matheola)				Opponent Rakgalakane, T (Thato)
3	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 5	type Standard	result 1	date 2023-05-27	rnd 5	type Standard	result 1
		Opponent Eziama, C (Chinonyelum Devine Favour)				Opponent Eziama, C (Chinonyelum Devine Favour)

#	Games	Start				End
1	3	Tournament D8 Schools Individuals 2023				Tournament D8 Schools Individuals 2023
		date 2023-05-20	rnd 3	type Standard	result 1	date 2023-05-20	rnd 5	type Standard	result 1
		Opponent Madigoe, M (Magabe)				Opponent Madlabane, N (Ntando)
2	2	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 2	type Standard	result 1	date 2023-05-27	rnd 3	type Standard	result 1
		Opponent Mohale, O (Oscar Matheola)				Opponent Rakgalakane, T (Thato)
3	1	Tournament Gauteng Schools Individual Finals 2023				Tournament Gauteng Schools Individual Finals 2023
		date 2023-05-27	rnd 5	type Standard	result 1	date 2023-05-27	rnd 5	type Standard	result 1
		Opponent Eziama, C (Chinonyelum Devine Favour)				Opponent Eziama, C (Chinonyelum Devine Favour)

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	Radebe ,L (Lesedi)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Radebe ,L (Lesedi)	1	1215.3	790.3	1	1219.6	790.3	0	0	0	0	0	0
2	Tladi ,T (Thoriso)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Tladi ,T (Thoriso)	1	1228.2	803.2	1	1232.8	803.2	0	0	0	0	0	0
3	Mohale ,O (Oscar Matheola)	1	1	425	1	1	425	0	0	0	0	0	0
3	Mohale ,O (Oscar Matheola)	1	1163.4	1588.4	1	1152	1588.4	0	0	0	0	0	0
4	Eziama ,C (Chinonyelum Devine Favour)	1	1	425	1	1	425	0	0	0	0	0	0
4	Eziama ,C (Chinonyelum Devine Favour)	1	1200.3	1625.3	1	1200.4	1625.3	0	0	0	0	0	0
5	Maduna ,T (Tshegofatso)	1	1	425	1	1	425	0	0	0	0	0	0
5	Maduna ,T (Tshegofatso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Hlophe ,L (Luthando)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Hlophe ,L (Luthando)	1	1214.9	789.9	1	1215.1	789.9	0	0	0	0	0	0
7	Mehlomakhulu ,T (Thato)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Mehlomakhulu ,T (Thato)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Madigoe ,M (Magabe)	1	1	425	1	1	425	0	0	0	0	0	0
8	Madigoe ,M (Magabe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Rakgalakane ,T (Thato)	1	1	425	1	1	425	0	0	0	0	0	0
9	Rakgalakane ,T (Thato)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Madlabane ,N (Ntando)	1	1	425	1	1	425	0	0	0	0	0	0
10	Madlabane ,N (Ntando)	1	1184.7	1609.7	1	1181.6	1609.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Viljoen, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms