Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, J (Jancu)

Chess SA id

109075165

FIDE id

Date of birth

2009-01-15 (U18)

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	908	908	758.8	758.8
Raw rating	908	908	758.8	758.8
Weighted rating	907.4	907.7	758.8	758.8
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	251.4	251.4	310.9	310.9
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	908 2024-02-01	908 2024-02-01	758.8 2024-02-01	758.8 2024-02-01
Highest weighted rating	908 2024-11-01	908 2024-11-01	758.8 2024-11-01	758.8 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	908	908	758.8	758.8
Analysis
Rating	908	908	758.8	758.8
Raw rating	908	908	758.8	758.8
Weighted rating	907.4	907.7	758.8
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	251.4	251.4	310.9	310.9
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	908	908	758.8	758.8
New weighted rating	907.8	907.9	758.8	758.8
New weighted performance	0	0	0	0
Temp new rating	908	908	758.8	758.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	908	908	758.8	758.8
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	151	146	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
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	21	14	66.67	141.7	728.5	870.2
Standard	21	14	66.67	141.7	728.5	870.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	908	908	758.8	758.8
2025-09-01	908	908	758.8	758.8
2025-08-01	908	908	758.8	758.8
2025-07-01	908	908	758.8	758.8
2025-06-01	908	908	758.8	758.8
2025-05-01	908	908	758.8	758.8
2025-04-01	908	908	758.8	758.8
2025-03-01	908	908	758.8	758.8
2025-02-01	908	908	758.8	758.8
2025-01-01	908	908	758.8	758.8
2024-12-01	908	908	758.8	758.8
2024-11-01	908	908	758.8	758.8
2024-10-01	908	908	758.8	758.8
2024-09-01	908	908	758.8	758.8
2024-08-01	908	908	758.8	758.8
2024-07-01	908	908	758.8	758.8
2024-06-01	908	908	758.8	758.8
2024-08-01	908	908	758.8	758.8
2024-04-01	908	908	758.8	758.8
2024-03-01	908	908	758.8	758.8
2024-02-01	908	908	758.8	758.8
2024-01-01	908	908	758.8	758.8
2023-12-01	851.2	880	758.8	758.8
2023-11-01	851.2	880	758.8	758.8

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 (D)	2018-03-24	2018-03-24	Standard	Bojanala Platina (NBR)	5	5	4.5	Yes	Analysis
2	Hoerskool Brits 2018 (U10)	2018-03-17	2018-03-17	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
3	Laerskool Vastrap 2018 (U10)	2018-02-03	2018-02-03	Standard	Bojanala Platina (NBR)	5	5	4	Yes	Analysis
4	South African Junior Team Championships 2017 (U10B)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	1.5	Yes	Analysis

#	Games	Start				End
1	7	Tournament Laerskool Vastrap 2018				Tournament Hoerskool Brits 2018
		date 2018-02-03	rnd 3	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Bredenkamp, G (Gunther)				Opponent Morkel, DJ (Douglas)
2	5	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 1	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 0.5
		Opponent Mokgethwa, O (Onthatile)				Opponent Wolmarans, CH (Cornelius)
3	2	Tournament South African Junior Team Championships 2017				Tournament Laerskool Vastrap 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-02-03	rnd 1	type Standard	result 1
		Opponent Coertse, J (Jaimi)				Opponent Sekhute, K (Khumo)

#	Games	Start				End
1	7	Tournament Laerskool Vastrap 2018				Tournament Hoerskool Brits 2018
		date 2018-02-03	rnd 3	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Bredenkamp, G (Gunther)				Opponent Morkel, DJ (Douglas)
2	5	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 1	type Standard	result 1	date 2018-03-24	rnd 5	type Standard	result 0.5
		Opponent Mokgethwa, O (Onthatile)				Opponent Wolmarans, CH (Cornelius)
3	2	Tournament South African Junior Team Championships 2017				Tournament Laerskool Vastrap 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-02-03	rnd 1	type Standard	result 1
		Opponent Coertse, J (Jaimi)				Opponent Sekhute, K (Khumo)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Laerskool Vastrap 2018				Tournament Hoerskool Brits 2018
		date 2018-02-03	rnd 3	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Bredenkamp, G (Gunther)				Opponent Morkel, DJ (Douglas)
2	4	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 1	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Mokgethwa, O (Onthatile)				Opponent Nel, JB (Janko)
3	2	Tournament South African Junior Team Championships 2017				Tournament Laerskool Vastrap 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-02-03	rnd 1	type Standard	result 1
		Opponent Coertse, J (Jaimi)				Opponent Sekhute, K (Khumo)

#	Games	Start				End
1	7	Tournament Laerskool Vastrap 2018				Tournament Hoerskool Brits 2018
		date 2018-02-03	rnd 3	type Standard	result 1	date 2018-03-17	rnd 4	type Standard	result 1
		Opponent Bredenkamp, G (Gunther)				Opponent Morkel, DJ (Douglas)
2	4	Tournament Laerskool Rustenburg 2018				Tournament Laerskool Rustenburg 2018
		date 2018-03-24	rnd 1	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Mokgethwa, O (Onthatile)				Opponent Nel, JB (Janko)
3	2	Tournament South African Junior Team Championships 2017				Tournament Laerskool Vastrap 2018
		date 2018-01-08	rnd 7	type Standard	result 1	date 2018-02-03	rnd 1	type Standard	result 1
		Opponent Coertse, J (Jaimi)				Opponent Sekhute, K (Khumo)

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	Nel ,JB (Janko Bruwer)	2	1	0	2	1	0	0	0	0	0	0	0
1	Nel ,JB (Janko Bruwer)	2	798.2	798.2	2	802.2	798.2	0	0	0	0	0	0
2	Bredenkamp ,G (Gunther)	1	1	425	1	1	425	0	0	0	0	0	0
2	Bredenkamp ,G (Gunther)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Letupu ,L (Lemogang)	1	1	425	1	1	425	0	0	0	0	0	0
3	Letupu ,L (Lemogang)	1	683.6	1108.6	1	683.6	1108.6	0	0	0	0	0	0
4	Molefinyane ,O (Omatla)	1	1	425	1	1	425	0	0	0	0	0	0
4	Molefinyane ,O (Omatla)	1	643.2	1068.2	1	643.2	1068.2	0	0	0	0	0	0
5	Sera ,G (Galaletsang)	1	1	425	1	1	425	0	0	0	0	0	0
5	Sera ,G (Galaletsang)	1	706.9	1131.9	1	724.8	1131.9	0	0	0	0	0	0
6	Morkel ,DJ (Douglas Jonathan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Morkel ,DJ (Douglas Jonathan)	1	1049.9	1474.9	1	1034.2	1474.9	0	0	0	0	0	0
7	Beelders ,A (Andrew)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Beelders ,A (Andrew)	1	628.8	628.8	1	628.8	628.8	0	0	0	0	0	0
8	Strong ,D (Davida)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Strong ,D (Davida)	1	686.4	261.4	1	686.4	261.4	0	0	0	0	0	0
9	Jansen Van Vuuren ,C (Christopher)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Jansen Van Vuuren ,C (Christopher)	1	739	314	1	739	314	0	0	0	0	0	0
10	Coertse ,J (Jaimi)	1	1	425	1	1	425	0	0	0	0	0	0
10	Coertse ,J (Jaimi)	1	756.4	1181.4	1	756.4	1181.4	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

Jacobs, J (Jancu)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms