Chess South Africa Ratings Database

PLAYER PAGE

Personal

Viljoen, D (Dian)

Chess SA id

1120142192

FIDE id

Date of birth

2012-03-06 (U14)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-01

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1410.9

Item	Main	Standard	Rapid	Blitz
Rating	1430.3	1426.7	1200	1200
Raw rating	1430.3	1426.7	1200	1200
Weighted rating	1414.4	1406.3	1200	1200
Weighted performance	1212.5	1210.7	0	0
Floor	970.9	967.2	700	700
K-factor	32	32	36	36
Min/Max rating change allowed	119.4	120	165.8	165.8
Highest rating	1470.9 2024-03-01	1467.2 2024-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1470.9 2024-03-01	1467.2 2024-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1470.9 2024-09-01	1467.2 2024-09-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1459.2 2023-10-01	1452.2 2023-10-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1430.3	1426.7	1200	1200
Analysis
Rating	1430.3	1426.7	1200	1200
Raw rating	1430.3	1426.7	1200	1200
Weighted rating	1414.4	1406.3	1200
Weighted performance	1212.5	1210.7	0
K-factor	32	32	36	36
Floor	970.9	967.2	700	700
Max/Min rating change allowed	119.4	120	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	1430.3	1426.7	1200	1200
New weighted rating	1415	1407.4	1200	1200
New weighted performance	1212	1210.2	0	0
Temp new rating	1430.3	1426.7	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1430.3	1426.7	1200	1200
New K-factor	32	32	36	36
New floor	970.9	967.2	700	700

Item	Main	Standard
	0	0
	5	5
	29	29
	34	34
	9	9
	0	0
History	77	77

Games since
	Main 38	Standard 38		Rapid 0		Blitz 0
Gender	Male
Age group	U14
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	1782		138		22
Male	1480		119		19
U14	282		17		2
U14 Male	213		14		2
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	5	4.5	90	340	1263.2	1603.2
Standard	5	4.5	90	340	1263.2	1603.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	77	50	64.94	126.9	1215.5	1342.4
Standard	77	50	64.94	126.9	1215.5	1342.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1430.3	1426.7	1200	1200
2025-09-01	1430.3	1426.7	1200	1200
2025-08-01	1430.3	1426.7	1200	1200
2025-07-01	1430.3	1426.7	1200	1200
2025-06-01	1430.3	1426.7	1200	1200
2025-05-01	1430.3	1426.7	1200	1200
2025-04-01	1430.3	1426.7	1200	1200
2025-03-01	1430.3	1426.7	1200	1200
2025-02-01	1399.3	1387.7	1200	1200
2025-01-01	1342.7	1325.4	1200	1200
2024-12-01	1339.7	1321.9	1200	1200
2024-11-01	1339.7	1321.9	1200	1200
2024-10-01	1339.7	1321.9	1200	1200
2024-09-01	1387.2	1366.7	1200	1200
2024-08-01	1387.2	1366.7	1200	1200
2024-07-01	1462.9	1457.3	1200	1200
2024-06-01	1462.9	1457.3	1200	1200
2024-08-01	1462.9	1457.3	1200	1200
2024-04-01	1462.9	1457.3	1200	1200
2024-03-01	1470.9	1467.2	1200	1200
2024-02-01	1459.2	1452.2	1200	1200
2024-01-01	1459.2	1452.2	1200	1200
2023-12-01	1459.2	1452.2	1200	1200
2023-11-01	1459.2	1452.2	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	DR KK Volkies 2025 (U14)	2025-02-01	2025-02-01	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	DR KK Volkies 2025 (U14)	2025-02-01	2025-02-01	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis
2	Gauteng Inter-Region at UJ 2024 (U14 Candidates)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
3	DR KKD Mooirivier Trials 2024 (U14)	2024-09-14	2024-09-14	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
4	DR KKD Curro Agegroup 2024 (U14)	2024-08-31	2024-08-31	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
5	DR KK Gimmies 2024 (B)	2024-07-13	2024-07-13	Standard	Dr Kenneth Kaunda (NWP)	5	4	0	Yes	Analysis
6	DR KKD Ferdies Mar 2024 (D)	2024-03-02	2024-03-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
7	DR KKD Curro Feb 2024 (U14)	2024-02-10	2024-02-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
8	DR KKD Trials 2023 (U12)	2023-09-02	2023-09-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
9	2023 Thomas Lechelele North West Open (C)	2023-09-15	2023-09-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	5	Yes	Analysis
10	DR Kenneth Kaunda Volkies 29 Jul 2023 (C)	2023-10-29	2023-10-29	Standard	Dr Kenneth Kaunda (NWP)	5	4	3	Yes	Analysis
11	Dr Kenneth Kaunda Volkies 2023 (D)	2023-06-10	2023-06-10	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
12	Dr KKD Curro 2023 (U10+U12)	2023-05-13	2023-05-13	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
13	DR Kenneth Kaunda Curro 2023 (D)	2023-04-22	2023-04-22	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
14	Dr. Kenneth Kaunda Saamtrek 2023 (U12)	2023-02-04	2023-02-04	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis
15	Dr. KKD Volkskool 2022 (U14)	2022-08-20	2022-08-20	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
16	Bailie Park Potchefstroom 2022 (U12)	2022-04-06	2022-04-06	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis

#	Games	Start				End
1	11	Tournament DR KKD Trials 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-09-02	rnd 2	type Standard	result 1	date 2023-10-29	rnd 3	type Standard	result 1
		Opponent Pope, K (Kathryn Alison)				Opponent Molefe, HT (His-Eminennce Tshenolo)
2	9	Tournament Dr. KKD Volkskool 2022				Tournament DR Kenneth Kaunda Curro 2023
		date 2022-08-20	rnd 5	type Standard	result 1	date 2023-04-22	rnd 3	type Standard	result 1
		Opponent Van Reede Van Oudtshoorn, C (Conrad)				Opponent Van Jaarsveld, G (Gian)
3	5	Tournament DR KK Volkies 2025				Tournament DR KK Volkies 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Harding, A (Aiden)				Opponent Jansen Van Vuuren, C (Cilliers)

#	Games	Start				End
1	11	Tournament DR KKD Trials 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-09-02	rnd 2	type Standard	result 1	date 2023-10-29	rnd 3	type Standard	result 1
		Opponent Pope, K (Kathryn Alison)				Opponent Molefe, HT (His-Eminennce Tshenolo)
2	9	Tournament Dr. KKD Volkskool 2022				Tournament DR Kenneth Kaunda Curro 2023
		date 2022-08-20	rnd 5	type Standard	result 1	date 2023-04-22	rnd 3	type Standard	result 1
		Opponent Van Reede Van Oudtshoorn, C (Conrad)				Opponent Van Jaarsveld, G (Gian)
3	5	Tournament DR KK Volkies 2025				Tournament DR KK Volkies 2025
		date 2025-02-01	rnd 1	type Standard	result 1	date 2025-02-01	rnd 5	type Standard	result 1
		Opponent Harding, A (Aiden)				Opponent Jansen Van Vuuren, C (Cilliers)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	11	Tournament DR KKD Trials 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-09-02	rnd 2	type Standard	result 1	date 2023-10-29	rnd 3	type Standard	result 1
		Opponent Pope, K (Kathryn Alison)				Opponent Molefe, HT (His-Eminennce Tshenolo)
2	7	Tournament Dr. Kenneth Kaunda Saamtrek 2023				Tournament DR Kenneth Kaunda Curro 2023
		date 2023-02-04	rnd 2	type Standard	result 1	date 2023-04-22	rnd 3	type Standard	result 1
		Opponent Brits, M (Marica)				Opponent Van Jaarsveld, G (Gian)
3	4	Tournament DR Kenneth Kaunda Volkies 29 Jul 2023				Tournament DR KKD Curro Feb 2024
		date 2023-10-29	rnd 5	type Standard	result 1	date 2024-02-10	rnd 3	type Standard	result 1
		Opponent Gouws, C (Christiaan)				Opponent De Kock, E (Ewin)

#	Games	Start				End
1	11	Tournament DR KKD Trials 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-09-02	rnd 2	type Standard	result 1	date 2023-10-29	rnd 3	type Standard	result 1
		Opponent Pope, K (Kathryn Alison)				Opponent Molefe, HT (His-Eminennce Tshenolo)
2	7	Tournament Dr. Kenneth Kaunda Saamtrek 2023				Tournament DR Kenneth Kaunda Curro 2023
		date 2023-02-04	rnd 2	type Standard	result 1	date 2023-04-22	rnd 3	type Standard	result 1
		Opponent Brits, M (Marica)				Opponent Van Jaarsveld, G (Gian)
3	4	Tournament DR Kenneth Kaunda Volkies 29 Jul 2023				Tournament DR KKD Curro Feb 2024
		date 2023-10-29	rnd 5	type Standard	result 1	date 2024-02-10	rnd 3	type Standard	result 1
		Opponent Gouws, C (Christiaan)				Opponent De Kock, E (Ewin)

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	Ellis ,S (Suane)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
1	Ellis ,S (Suane)	4	1170.7	958.2	4	1173.1	958.2	0	0	0	0	0	0
2	Molefe ,HT (His-Eminennce Tshenolo)	4	4	425	4	4	425	0	0	0	0	0	0
2	Molefe ,HT (His-Eminennce Tshenolo)	4	1175	1600	4	1169.6	1600	0	0	0	0	0	0
3	Jordaan ,M (Marco)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Jordaan ,M (Marco)	3	1230.9	1372.6	3	1231.8	1372.6	0	0	0	0	0	0
4	Harding ,A (Aiden)	2	2	425	2	2	425	0	0	0	0	0	0
4	Harding ,A (Aiden)	2	1168.8	1593.8	2	1160.8	1593.8	0	0	0	0	0	0
5	Welgemoed ,E (Ethan)	2	1	0	2	1	0	0	0	0	0	0	0
5	Welgemoed ,E (Ethan)	2	1203	1203	2	1197.7	1203	0	0	0	0	0	0
6	Van Jaarsveld ,G (Gian)	2	2	425	2	2	425	0	0	0	0	0	0
6	Van Jaarsveld ,G (Gian)	2	1188.2	1613.2	2	1184.9	1613.2	0	0	0	0	0	0
7	Schoeman ,J (Juandre)	2	1	0	2	1	0	0	0	0	0	0	0
7	Schoeman ,J (Juandre)	2	1264.8	1264.8	2	1271.6	1264.8	0	0	0	0	0	0
8	Els ,P (Paul)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Els ,P (Paul)	2	1246.8	821.8	2	1245.7	821.8	0	0	0	0	0	0
9	Grobbelaar ,H (Hannes)	2	2	425	2	2	425	0	0	0	0	0	0
9	Grobbelaar ,H (Hannes)	2	1204	1629	2	1206.3	1629	0	0	0	0	0	0
10	Labuschagne ,E (Edrich)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
10	Labuschagne ,E (Edrich)	2	1466.7	1254.2	2	1460.6	1254.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Viljoen, D (Dian)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms