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
2025-09-30	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
2024-06-01	903.8	795.6	943.6	746
2024-08-01	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
2023-11-01	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	Davids ,R (Rafael)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Davids ,R (Rafael)	2	1110.2	685.2	0	0	0	2	979.7	685.2	0	0	0
3	Willemse ,LH (Lee-Handrio)	2	2	425	0	0	0	2	2	425	0	0	0
3	Willemse ,LH (Lee-Handrio)	2	503.6	928.6	0	0	0	2	506	928.6	0	0	0
4	Plaatjies ,B (Bjorn)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Plaatjies ,B (Bjorn)	1	798.1	373.1	1	756.8	373.1	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	Drury ,N (Nicholas)	1	1	425	1	1	425	0	0	0	0	0	0
6	Drury ,N (Nicholas)	1	549.3	974.3	1	547.8	974.3	0	0	0	0	0	0
7	Coetzee ,D (David)	1	1	425	1	1	425	0	0	0	0	0	0
7	Coetzee ,D (David)	1	1066.8	1491.8	1	1040.4	1491.8	0	0	0	0	0	0
8	Rosenburg ,W (Wagheed)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Rosenburg ,W (Wagheed)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	De Wet ,M (Malcolm)	1	1	425	1	1	425	0	0	0	0	0	0
9	De Wet ,M (Malcolm)	1	539.6	964.6	1	500	964.6	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

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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