Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, CJ (Christiaan)

Chess SA id

107049652

FIDE id

Date of birth

2007-03-07 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-02-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	903.8	795.6	943.6	746
Raw rating	903.8	795.6	943.6	746
Weighted rating	903.8	795.6	943.6	746
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	252.9	295	238.9	316.6
Highest rating	1200 2024-11-01	1200 2018-02-01	1200 2024-11-01	1200 2024-02-01
Highest raw rating	903.8 2024-02-01	795.6 2024-02-01	943.6 2024-02-01	746 2024-02-01
Highest weighted rating	903.8 2024-11-01	795.6 2024-11-01	943.6 2024-11-01	746 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2018-02-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	903.8	795.6	943.6	746
Analysis
Rating	903.8	795.6	943.6	746
Raw rating	903.8	795.6	943.6	746
Weighted rating	903.8	795.6	943.6
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	252.9	295	238.9	316.6
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	903.8	795.6	943.6	746
New weighted rating	903.8	795.6	943.6	746
New weighted performance	0	0	0	0
Temp new rating	903.8	795.6	943.6	746
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	903.8	795.6	943.6	746
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	95	56	39

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	24	14.5	60.42	88.5	936.4	1024.9
Standard	7	4	57.14	60.7	850.2	910.9
Rapid	17	10.5	61.76	100	971.9	1071.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	903.8	795.6	943.6	746
2025-09-30	903.8	795.6	943.6	746
2025-09-01	903.8	795.6	943.6	746
2025-08-01	903.8	795.6	943.6	746
2025-07-01	903.8	795.6	943.6	746
2025-06-01	903.8	795.6	943.6	746
2025-05-01	903.8	795.6	943.6	746
2025-04-01	903.8	795.6	943.6	746
2025-03-01	903.8	795.6	943.6	746
2025-02-01	903.8	795.6	943.6	746
2025-01-01	903.8	795.6	943.6	746
2024-12-01	903.8	795.6	943.6	746
2024-11-01	903.8	795.6	943.6	746
2024-10-01	903.8	795.6	943.6	746
2024-09-01	903.8	795.6	943.6	746
2024-08-01	903.8	795.6	943.6	746
2024-07-01	903.8	795.6	943.6	746
2024-09-01	903.8	795.6	943.6	746
2024-05-01	903.8	795.6	943.6	746
2024-04-01	903.8	795.6	943.6	746
2024-03-01	903.8	795.6	943.6	746
2024-02-01	903.8	795.6	943.6	746
2024-01-01	903.8	795.6	943.6	746
2023-12-01	903.8	795.6	943.6	746

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	CW Schools Open 2019 (U13 Boys)	2019-02-02	2019-02-02	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
2	Cape Winelands Schools Trials 1 2018 (U11 Boys)	2018-03-03	2018-03-03	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
3	Cape Winelands Schools Prestige 2018 (U11 Boys)	2018-03-24	2018-03-25	Standard	Cape Winelands (WCW)	7	7	4	Yes	Analysis
4	North Boland Trials 2018 (U11 Boys)	2018-02-17	2018-02-17	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2018				Tournament CW Schools Open 2019
		date 2018-03-25	rnd 7	type Standard	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Fortuin, R (Robin)				Opponent Isaacs, C (Chad-Lee)
2	3	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-03	rnd 5	type Rapid	result 1	date 2018-03-24	rnd 1	type Standard	result 1
		Opponent Jansen, C (Cheslin)				Opponent Drury, N (Nicholas)
3	3	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 3	type Rapid	result 1	date 2018-02-17	rnd 5	type Rapid	result 1
		Opponent Jansen, C (Cheslin)				Opponent Ismail, A (Amar)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 7	type Standard	result 1	date 2018-03-25	rnd 7	type Standard	result 1
		Opponent Fortuin, R (Robin)				Opponent Fortuin, R (Robin)
2	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 5	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Coetzee, D (David)				Opponent Coetzee, D (David)
3	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-03-24	rnd 3	type Standard	result 1
		Opponent De Wet, M (Malcolm)				Opponent De Wet, M (Malcolm)

#	Games	Start				End
1	4	Tournament Cape Winelands Schools Trials 1 2018				Tournament CW Schools Open 2019
		date 2018-03-03	rnd 5	type Rapid	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Jansen, C (Cheslin)				Opponent Isaacs, C (Chad-Lee)
2	3	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 3	type Rapid	result 1	date 2018-02-17	rnd 5	type Rapid	result 1
		Opponent Jansen, C (Cheslin)				Opponent Ismail, A (Amar)
3	2	Tournament CW Schools Open 2019				Tournament CW Schools Open 2019
		date 2019-02-02	rnd 5	type Rapid	result 0.5	date 2019-02-02	rnd 6	type Rapid	result 1
		Opponent Jefthas, Z (Zairon)				Opponent Louw, T (Tyrique)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2018				Tournament CW Schools Open 2019
		date 2018-03-25	rnd 7	type Standard	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Fortuin, R (Robin)				Opponent Isaacs, C (Chad-Lee)
2	3	Tournament Cape Winelands Schools Trials 1 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-03	rnd 5	type Rapid	result 1	date 2018-03-24	rnd 1	type Standard	result 1
		Opponent Jansen, C (Cheslin)				Opponent Drury, N (Nicholas)
3	3	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 3	type Rapid	result 1	date 2018-02-17	rnd 5	type Rapid	result 1
		Opponent Jansen, C (Cheslin)				Opponent Ismail, A (Amar)

#	Games	Start				End
1	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 7	type Standard	result 1	date 2018-03-25	rnd 7	type Standard	result 1
		Opponent Fortuin, R (Robin)				Opponent Fortuin, R (Robin)
2	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-25	rnd 5	type Standard	result 1	date 2018-03-25	rnd 5	type Standard	result 1
		Opponent Coetzee, D (David)				Opponent Coetzee, D (David)
3	1	Tournament Cape Winelands Schools Prestige 2018				Tournament Cape Winelands Schools Prestige 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-03-24	rnd 3	type Standard	result 1
		Opponent De Wet, M (Malcolm)				Opponent De Wet, M (Malcolm)

#	Games	Start				End
1	4	Tournament Cape Winelands Schools Trials 1 2018				Tournament CW Schools Open 2019
		date 2018-03-03	rnd 5	type Rapid	result 1	date 2019-02-02	rnd 2	type Rapid	result 1
		Opponent Jansen, C (Cheslin)				Opponent Isaacs, C (Chad-Lee)
2	3	Tournament North Boland Trials 2018				Tournament North Boland Trials 2018
		date 2018-02-17	rnd 3	type Rapid	result 1	date 2018-02-17	rnd 5	type Rapid	result 1
		Opponent Jansen, C (Cheslin)				Opponent Ismail, A (Amar)
3	1	Tournament CW Schools Open 2019				Tournament CW Schools Open 2019
		date 2019-02-02	rnd 6	type Rapid	result 1	date 2019-02-02	rnd 6	type Rapid	result 1
		Opponent Louw, T (Tyrique)				Opponent Louw, T (Tyrique)

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	Jansen ,C (Cheslin)	2	2	425	0	0	0	2	2	425	0	0	0
1	Jansen ,C (Cheslin)	2	1183.1	1608.1	0	0	0	2	1171.8	1608.1	0	0	0
2	Willemse ,LH (Lee-Handrio)	2	2	425	0	0	0	2	2	425	0	0	0
2	Willemse ,LH (Lee-Handrio)	2	503.6	928.6	0	0	0	2	506	928.6	0	0	0
3	Davids ,R (Rafael)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Davids ,R (Rafael)	2	1110.2	685.2	0	0	0	2	979.7	685.2	0	0	0
4	Drury ,N (Nicholas)	1	1	425	1	1	425	0	0	0	0	0	0
4	Drury ,N (Nicholas)	1	549.3	974.3	1	547.8	974.3	0	0	0	0	0	0
5	Fortuin ,R (Robin)	1	1	425	1	1	425	0	0	0	0	0	0
5	Fortuin ,R (Robin)	1	1162.3	1587.3	1	1200	1587.3	0	0	0	0	0	0
6	Coetzee ,D (David)	1	1	425	1	1	425	0	0	0	0	0	0
6	Coetzee ,D (David)	1	1066.8	1491.8	1	1040.4	1491.8	0	0	0	0	0	0
7	Rosenburg ,W (Wagheed)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Rosenburg ,W (Wagheed)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	De Wet ,M (Malcolm)	1	1	425	1	1	425	0	0	0	0	0	0
8	De Wet ,M (Malcolm)	1	539.6	964.6	1	500	964.6	0	0	0	0	0	0
9	Plaatjies ,B (Bjorn)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Plaatjies ,B (Bjorn)	1	798.1	373.1	1	756.8	373.1	0	0	0	0	0	0
10	Isaacs ,S (Sean-Patrick)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Isaacs ,S (Sean-Patrick)	1	635.2	210.2	1	635.2	210.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Jacobs, CJ (Christiaan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms