Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, J (Joshua)

Chess SA id

106068749

FIDE id

Date of birth

2006-11-05 (U20)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-05-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1115.7	999.6	1134	1180
Raw rating	1115.7	999.6	1134	1180
Weighted rating	1115.7	999.6	1134	1177.9
Weighted performance	209.8	0	0	0
Floor	615.7	502.8	634	680
K-factor	40	40	40	40
Min/Max rating change allowed	187	220.6	182.2	170.6
Highest rating	1200 2018-02-01	1200 2018-02-01	1243 2018-05-01	1200 2024-02-01
Highest raw rating	1115.7 2024-02-01	1002.8 2019-04-01	1134 2024-02-01	1180 2024-02-01
Highest weighted rating	1115.7 2024-11-01	1002.8 2024-11-01	1134 2024-11-01	1180 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1243 2018-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1115.7	999.6	1134	1180
Analysis
Rating	1115.7	999.6	1134	1180
Raw rating	1115.7	999.6	1134	1180
Weighted rating	1115.7	999.6	1134
Weighted performance	209.8	0	0
K-factor	40	40	40	40
Floor	615.7	502.8	634	680
Max/Min rating change allowed	187	220.6	182.2	170.6
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	1115.7	999.6	1134	1180
New weighted rating	1115.7	999.6	1134	1179.3
New weighted performance	209.4	0	0	0
Temp new rating	1115.7	999.6	1134	1180
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1115.7	999.6	1134	1180
New K-factor	40	40	40	40
New floor	615.7	502.8	634	680

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	118	70	48

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	33	19	57.58	64.4	1139.8	1204.2
Standard	13	6.5	50	0	1118.2	1118.2
Rapid	20	12.5	62.5	106.2	1153.8	1260.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1115.7	999.6	1134	1180
2025-09-01	1115.7	999.6	1134	1180
2025-08-01	1115.7	999.6	1134	1180
2025-07-01	1115.7	999.6	1134	1180
2025-06-01	1115.7	999.6	1134	1180
2025-05-01	1115.7	999.6	1134	1180
2025-04-01	1115.7	999.6	1134	1180
2025-03-01	1115.7	999.6	1134	1180
2025-02-01	1115.7	999.6	1134	1180
2025-01-01	1115.7	999.6	1134	1180
2024-12-01	1115.7	999.6	1134	1180
2024-11-01	1115.7	999.6	1134	1180
2024-10-01	1115.7	999.6	1134	1180
2024-09-01	1115.7	999.6	1134	1180
2024-08-01	1115.7	999.6	1134	1180
2024-07-01	1115.7	999.6	1134	1180
2024-06-01	1115.7	999.6	1134	1180
2024-08-01	1115.7	999.6	1134	1180
2024-04-01	1115.7	999.6	1134	1180
2024-03-01	1115.7	999.6	1134	1180
2024-02-01	1115.7	999.6	1134	1180
2024-01-01	1115.7	999.6	1134	1180
2023-12-01	1115.7	999.6	1134	974
2023-11-01	1115.7	999.6	1134	974

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	Western Cape Schools Individuals 2019 (U13 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	2	Yes	Analysis
2	Rhenish Primary Chess Tournament 2019 (U14)	2019-05-11	2019-05-11	Rapid	Cape Winelands (WCW)	7	7	4.5	Yes	Analysis
3	Cape Winelands Schools Closed 2019 (U13 Boys)	2019-03-16	2019-03-17	Standard	Cape Winelands (WCW)	7	7	4.5	Yes	Analysis
4	CW Schools Open 2019 (U13 Boys)	2019-02-02	2019-02-02	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
5	Rhenish Primary Chess Tournament 2018 (U14)	2018-05-12	2018-05-12	Rapid	Cape Winelands (WCW)	7	7	4	Yes	Analysis

#	Games	Start				End
1	5	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 2	type Standard	result 1	date 2019-03-17	rnd 6	type Standard	result 1
		Opponent Benvenuto, O (Oscar)				Opponent De Wet, M (Malcolm)
2	3	Tournament Rhenish Primary Chess Tournament 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-05-11	rnd 3	type Rapid	result 1	date 2019-05-11	rnd 5	type Rapid	result 1
		Opponent Dzama, A (Anesu)				Opponent Mabaso, I (Inathi)
3	3	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 4	type Rapid	result 1	date 2018-05-12	rnd 6	type Rapid	result 1
		Opponent Londt, A (Alex)				Opponent Narain, A (Arul)

#	Games	Start				End
1	5	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 2	type Standard	result 1	date 2019-03-17	rnd 6	type Standard	result 1
		Opponent Benvenuto, O (Oscar)				Opponent De Wet, M (Malcolm)
2	1	Tournament Western Cape Schools Individuals 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-05-19	rnd 6	type Standard	result 1	date 2019-05-19	rnd 6	type Standard	result 1
		Opponent Groenewald, R (Randuaan)				Opponent Groenewald, R (Randuaan)
3	1	Tournament Western Cape Schools Individuals 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-05-18	rnd 1	type Standard	result 1	date 2019-05-18	rnd 1	type Standard	result 1
		Opponent Koen, I (Ian)				Opponent Koen, I (Ian)

#	Games	Start				End
1	3	Tournament Rhenish Primary Chess Tournament 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-05-11	rnd 3	type Rapid	result 1	date 2019-05-11	rnd 5	type Rapid	result 1
		Opponent Dzama, A (Anesu)				Opponent Mabaso, I (Inathi)
2	3	Tournament CW Schools Open 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-02-02	rnd 5	type Rapid	result 1	date 2019-05-11	rnd 1	type Rapid	result 1
		Opponent Badenhorst, S (Stephan)				Opponent Sterley, B (Boaz)
3	3	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 4	type Rapid	result 1	date 2018-05-12	rnd 6	type Rapid	result 1
		Opponent Londt, A (Alex)				Opponent Narain, A (Arul)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 4	type Rapid	result 1	date 2018-05-12	rnd 6	type Rapid	result 1
		Opponent Londt, A (Alex)				Opponent Narain, A (Arul)
2	2	Tournament Rhenish Primary Chess Tournament 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-05-11	rnd 7	type Rapid	result 1	date 2019-05-18	rnd 1	type Standard	result 1
		Opponent Phongoma, L (Lisakhanya)				Opponent Koen, I (Ian)
3	2	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-17	rnd 5	type Standard	result 1	date 2019-03-17	rnd 6	type Standard	result 1
		Opponent Jefthas, Z (Zairon)				Opponent De Wet, M (Malcolm)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-17	rnd 5	type Standard	result 1	date 2019-03-17	rnd 6	type Standard	result 1
		Opponent Jefthas, Z (Zairon)				Opponent De Wet, M (Malcolm)
2	2	Tournament Cape Winelands Schools Closed 2019				Tournament Cape Winelands Schools Closed 2019
		date 2019-03-16	rnd 2	type Standard	result 1	date 2019-03-16	rnd 3	type Standard	result 1
		Opponent Benvenuto, O (Oscar)				Opponent Rennie, D (David)
3	1	Tournament Western Cape Schools Individuals 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-05-19	rnd 6	type Standard	result 1	date 2019-05-19	rnd 6	type Standard	result 1
		Opponent Groenewald, R (Randuaan)				Opponent Groenewald, R (Randuaan)

#	Games	Start				End
1	3	Tournament CW Schools Open 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-02-02	rnd 5	type Rapid	result 1	date 2019-05-11	rnd 1	type Rapid	result 1
		Opponent Badenhorst, S (Stephan)				Opponent Sterley, B (Boaz)
2	3	Tournament Rhenish Primary Chess Tournament 2018				Tournament Rhenish Primary Chess Tournament 2018
		date 2018-05-12	rnd 4	type Rapid	result 1	date 2018-05-12	rnd 6	type Rapid	result 1
		Opponent Londt, A (Alex)				Opponent Narain, A (Arul)
3	1	Tournament Rhenish Primary Chess Tournament 2019				Tournament Rhenish Primary Chess Tournament 2019
		date 2019-05-11	rnd 7	type Rapid	result 1	date 2019-05-11	rnd 7	type Rapid	result 1
		Opponent Phongoma, L (Lisakhanya)				Opponent Phongoma, L (Lisakhanya)

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	Rennie ,D (David)	1	1	425	1	1	425	0	0	0	0	0	0
1	Rennie ,D (David)	1	1103.1	1528.1	1	662	1528.1	0	0	0	0	0	0
2	Benn ,E (Ethan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Benn ,E (Ethan)	1	998.1	998.1	1	872.4	998.1	0	0	0	0	0	0
3	Opperman ,E (Eldon)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Opperman ,E (Eldon)	1	806.4	381.4	1	864.4	381.4	0	0	0	0	0	0
4	Van Tonder ,W (Wium)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Van Tonder ,W (Wium)	1	1215.3	790.3	1	1136.4	790.3	0	0	0	0	0	0
5	Benvenuto ,O (Oscar)	1	1	425	1	1	425	0	0	0	0	0	0
5	Benvenuto ,O (Oscar)	1	1092.9	1517.9	1	1074.8	1517.9	0	0	0	0	0	0
6	Jefthas ,Z (Zairon)	1	1	425	1	1	425	0	0	0	0	0	0
6	Jefthas ,Z (Zairon)	1	1138.5	1563.5	1	1200	1563.5	0	0	0	0	0	0
7	Van Zyl ,R (Rigter)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Van Zyl ,R (Rigter)	1	1208.2	783.2	1	1083.8	783.2	0	0	0	0	0	0
8	Groenewald ,R (Randuaan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Groenewald ,R (Randuaan)	1	1215.2	1640.2	1	1219.2	1640.2	0	0	0	0	0	0
9	Kula ,A (Akhona)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
9	Kula ,A (Akhona)	1	1153.1	1153.1	0	0	0	1	1210.9	1153.1	0	0	0
10	Matiwani ,A (Akhanya)	1	1	425	0	0	0	1	1	425	0	0	0
10	Matiwani ,A (Akhanya)	1	1169.7	1594.7	0	0	0	1	1141.6	1594.7	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 (Joshua)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms