Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, DJ (David Jacobus)

Chess SA id

106045973

FIDE id

Date of birth

2006-01-04 (U20)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-03-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1004	983.9	1010.4	1010.4
Raw rating	1004	983.9	1010.4	1010.4
Weighted rating	1003.9	983.9	1010.4	1010.4
Weighted performance	0	0	0	0
Floor	529.6	529.6	510.4	510.4
K-factor	40	40	40	40
Min/Max rating change allowed	219.2	225.6	217.2	217.2
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	1029.6 2018-02-01	1029.6 2018-02-01	1010.4 2024-02-01	1010.4 2024-02-01
Highest weighted rating	1029.6 2024-11-01	1029.6 2024-11-01	1010.4 2024-11-01	1010.4 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1004	983.9	1010.4	1010.4
Analysis
Rating	1004	983.9	1010.4	1010.4
Raw rating	1004	983.9	1010.4	1010.4
Weighted rating	1003.9	983.9	1010.4
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	529.6	529.6	510.4	510.4
Max/Min rating change allowed	219.2	225.6	217.2	217.2
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	1004	983.9	1010.4	1010.4
New weighted rating	1004	983.9	1010.4	1010.4
New weighted performance	0	0	0	0
Temp new rating	1004	983.9	1010.4	1010.4
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1004	983.9	1010.4	1010.4
New K-factor	40	40	40	40
New floor	529.6	529.6	510.4	510.4

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	251	239	5	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
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	12	7	58.33	70.8	866.3	937.1
Standard	12	7	58.33	70.8	866.3	937.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1004	983.9	1010.4	1010.4
2025-09-30	1004	983.9	1010.4	1010.4
2025-09-01	1004	983.9	1010.4	1010.4
2025-08-01	1004	983.9	1010.4	1010.4
2025-07-01	1004	983.9	1010.4	1010.4
2025-06-01	1004	983.9	1010.4	1010.4
2025-05-01	1004	983.9	1010.4	1010.4
2025-04-01	1004	983.9	1010.4	1010.4
2025-03-01	1004	983.9	1010.4	1010.4
2025-02-01	1004	983.9	1010.4	1010.4
2025-01-01	1004	983.9	1010.4	1010.4
2024-12-01	1004	983.9	1010.4	1010.4
2024-11-01	1004	983.9	1010.4	1010.4
2024-10-01	1004	983.9	1010.4	1010.4
2024-09-01	1004	983.9	1010.4	1010.4
2024-08-01	1004	983.9	1010.4	1010.4
2024-07-01	1004	983.9	1010.4	1010.4
2024-09-01	1004	983.9	1010.4	1010.4
2024-05-01	1004	983.9	1010.4	1010.4
2024-04-01	1004	983.9	1010.4	1010.4
2024-03-01	1004	983.9	1010.4	1010.4
2024-02-01	1004	983.9	1010.4	1010.4
2024-01-01	1004	983.9	1010.4	1010.4
2023-12-01	976.1	967.2	1010.4	1010.4

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	Laerskool Rustenburg 2018 (B)	2018-03-24	2018-03-24	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
2	South African Junior Team Championships 2017 (U12C)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5	Yes	Analysis

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Meyer, E (Ewald)				Opponent Matjomane, S (Sekwele)
2	2	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent De Beer, SJ (Stefanus)				Opponent Difotso, LR (Lebogang)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Visser, R (Ruan)				Opponent Visser, R (Ruan)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Meyer, E (Ewald)				Opponent Matjomane, S (Sekwele)
2	2	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent De Beer, SJ (Stefanus)				Opponent Difotso, LR (Lebogang)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Visser, R (Ruan)				Opponent Visser, R (Ruan)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Meyer, E (Ewald)				Opponent Matjomane, S (Sekwele)
2	2	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent De Beer, SJ (Stefanus)				Opponent Difotso, LR (Lebogang)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Visser, R (Ruan)				Opponent Visser, R (Ruan)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-05	rnd 3	type Standard	result 1	date 2018-01-06	rnd 5	type Standard	result 1
		Opponent Meyer, E (Ewald)				Opponent Matjomane, S (Sekwele)
2	2	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 4	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 1
		Opponent De Beer, SJ (Stefanus)				Opponent Difotso, LR (Lebogang)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-01-08	rnd 7	type Standard	result 1
		Opponent Visser, R (Ruan)				Opponent Visser, R (Ruan)

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	Attwell ,R (Rowan)	1	1	425	1	1	425	0	0	0	0	0	0
1	Attwell ,R (Rowan)	1	671.8	1096.8	1	671.8	1096.8	0	0	0	0	0	0
2	Ferreira ,JC (John-Claud)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Ferreira ,JC (John-Claud)	1	844.6	419.6	1	855	419.6	0	0	0	0	0	0
3	Van Blomestein ,M (Matthew)	1	1	425	1	1	425	0	0	0	0	0	0
3	Van Blomestein ,M (Matthew)	1	651.8	1076.8	1	651.8	1076.8	0	0	0	0	0	0
4	Naude ,M (Marlo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Naude ,M (Marlo)	1	895.1	470.1	1	906.7	470.1	0	0	0	0	0	0
5	Visser ,R (Ruan)	1	1	425	1	1	425	0	0	0	0	0	0
5	Visser ,R (Ruan)	1	655.4	1080.4	1	655.4	1080.4	0	0	0	0	0	0
6	Meyer ,E (Ewald)	1	1	425	1	1	425	0	0	0	0	0	0
6	Meyer ,E (Ewald)	1	1228.7	1653.7	1	1228.7	1653.7	0	0	0	0	0	0
7	Masike ,O (Olerato)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Masike ,O (Olerato)	1	813.6	388.6	1	813.2	388.6	0	0	0	0	0	0
8	De Beer ,SJ (Stefanus)	1	1	425	1	1	425	0	0	0	0	0	0
8	De Beer ,SJ (Stefanus)	1	831.3	1256.3	1	836.8	1256.3	0	0	0	0	0	0
9	Difotso ,LR (Lebogang Rotondwa)	1	1	425	1	1	425	0	0	0	0	0	0
9	Difotso ,LR (Lebogang Rotondwa)	1	843.1	1268.1	1	848.4	1268.1	0	0	0	0	0	0
10	Govender ,R (Reolan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Govender ,R (Reolan)	1	911	486	1	911	486	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

De Villiers, DJ (David Jacobus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms