Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, S (Sian)

Chess SA id

1160308610

FIDE id

Date of birth

2016-04-14 (U10)

Gender

Male

Region

Gert Sibande (MGS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1197.3	1200	1197.5	1200
Raw rating	1197.3	1200	1197.5	1200
Weighted rating	1185.3	1200	1175.9	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	166.5	165.8	166.4	165.8
Highest rating	1200 2024-08-01	1200 2024-10-01	1200 2024-08-01	1200 2024-10-01
Highest raw rating	1200 2024-08-01	1200 2024-10-01	1200 2024-08-01	1200 2024-10-01
Highest weighted rating	1200 2024-08-01	1200 2024-10-01	1200 2024-08-01	1200 2024-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-10-01	1200 2024-12-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1197.3	1200	1197.5	1200
Analysis
Rating	1197.3	1200	1197.5	1200
Raw rating	1197.3	1200	1197.5	1200
Weighted rating	1185.3	1200	1175.9
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	166.5	165.8	166.4	165.8
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	1197.3	1200	1197.5	1200
New weighted rating	1186.1	1200	1177.2	1200
New weighted performance	0	0	0	0
Temp new rating	1197.3	1200	1197.5	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1197.3	1200	1197.5	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Rapid
	0	0
	5	5
	10	10
	0	0
	0	0
	0	0
History	15	15

Games since
	Main 15	Standard 0		Rapid 15		Blitz 0
Gender	Male
Age group	U10
Region	Gert Sibande (MGS)
Province	Mpumalanga (MP)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	5	3	60	85	1200	1285
Standard	0	0	0	0	0	0
Rapid	5	3	60	85	1200	1285
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	15	6.5	43.33	-56.7	1200	1143.3
Standard	0	0	0	0	0	0
Rapid	15	6.5	43.33	-56.7	1200	1143.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1197.3	1200	1197.5	1200
2025-09-01	1197.3	1200	1197.5	1200
2025-08-01	1185.6	1200	1176	1200
2025-07-01	1185.6	1200	1176	1200
2025-06-01	1185.6	1200	1176	1200
2025-05-01	1185.6	1200	1176	1200
2025-04-01	1185.6	1200	1176	1200
2025-03-01	1185.6	1200	1176	1200
2025-02-01	1184.5	1200	1174.2	1200
2025-01-01	1164	1200	1140	1200
2024-12-01	1164	1200	1140	1200
2024-11-01	1164	1200	1140	1200
2024-10-01	1164	1200	1140	1200
2024-09-01	1164	1200	1140	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rookies Tournament Secunda 2025 (U9)	2025-08-08	2025-08-08	Rapid	Gert Sibande (MGS)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Rookies Tournament Secunda 2025 (U9)	2025-08-08	2025-08-08	Rapid	Gert Sibande (MGS)	5	5	3	Yes	Analysis
2	Top Schools Gert Sibande 2024 (U9)	2024-08-16	2024-08-16	Rapid	Gert Sibande (MGS)	5	5	1	Yes	Analysis
3	Govan Mbeki 2024 (U9)	2024-08-02	2024-08-02	Rapid	Gert Sibande (MGS)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 1	type Rapid	result 1	date 2025-08-08	rnd 2	type Rapid	result 1
		Opponent Mbuli, K (Kwanda)				Opponent Kunene, A (Ayanda)
2	2	Tournament Govan Mbeki 2024				Tournament Govan Mbeki 2024
		date 2024-08-02	rnd 4	type Rapid	result 1	date 2024-08-02	rnd 5	type Rapid	result 0.5
		Opponent Koopman, K (Kieron)				Opponent Rikhotse, M (Milani)
3	1	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 4	type Rapid	result 1	date 2025-08-08	rnd 4	type Rapid	result 1
		Opponent Hamman, D (Danie)				Opponent Hamman, D (Danie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 1	type Rapid	result 1	date 2025-08-08	rnd 2	type Rapid	result 1
		Opponent Mbuli, K (Kwanda)				Opponent Kunene, A (Ayanda)
2	2	Tournament Govan Mbeki 2024				Tournament Govan Mbeki 2024
		date 2024-08-02	rnd 4	type Rapid	result 1	date 2024-08-02	rnd 5	type Rapid	result 0.5
		Opponent Koopman, K (Kieron)				Opponent Rikhotse, M (Milani)
3	1	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 4	type Rapid	result 1	date 2025-08-08	rnd 4	type Rapid	result 1
		Opponent Hamman, D (Danie)				Opponent Hamman, D (Danie)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 1	type Rapid	result 1	date 2025-08-08	rnd 2	type Rapid	result 1
		Opponent Mbuli, K (Kwanda)				Opponent Kunene, A (Ayanda)
2	1	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 4	type Rapid	result 1	date 2025-08-08	rnd 4	type Rapid	result 1
		Opponent Hamman, D (Danie)				Opponent Hamman, D (Danie)
3	1	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 2	type Rapid	result 1	date 2024-08-16	rnd 2	type Rapid	result 1
		Opponent Zwane, Z (Zimiso)				Opponent Zwane, Z (Zimiso)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 1	type Rapid	result 1	date 2025-08-08	rnd 2	type Rapid	result 1
		Opponent Mbuli, K (Kwanda)				Opponent Kunene, A (Ayanda)
2	1	Tournament Rookies Tournament Secunda 2025				Tournament Rookies Tournament Secunda 2025
		date 2025-08-08	rnd 4	type Rapid	result 1	date 2025-08-08	rnd 4	type Rapid	result 1
		Opponent Hamman, D (Danie)				Opponent Hamman, D (Danie)
3	1	Tournament Top Schools Gert Sibande 2024				Tournament Top Schools Gert Sibande 2024
		date 2024-08-16	rnd 2	type Rapid	result 1	date 2024-08-16	rnd 2	type Rapid	result 1
		Opponent Zwane, Z (Zimiso)				Opponent Zwane, Z (Zimiso)

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	Booysen ,E (Eli)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	Booysen ,E (Eli)	2	1200	775	0	0	0	2	1200	775	0	0	0
2	Landsberg ,R (Rebecca)	2	0	-425	0	0	0	2	0	-425	0	0	0
2	Landsberg ,R (Rebecca)	2	1200	775	0	0	0	2	1200	775	0	0	0
3	Dhlamini ,G (Gugulethu)	1	1	425	0	0	0	1	1	425	0	0	0
3	Dhlamini ,G (Gugulethu)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
4	Kunene ,A (Ayanda)	1	1	425	0	0	0	1	1	425	0	0	0
4	Kunene ,A (Ayanda)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
5	Hamman ,D (Danie)	1	1	425	0	0	0	1	1	425	0	0	0
5	Hamman ,D (Danie)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Mbuli ,K (Kwanda)	1	1	425	0	0	0	1	1	425	0	0	0
6	Mbuli ,K (Kwanda)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	Bisshoff ,R (Ruben)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Bisshoff ,R (Ruben)	1	1200	775	0	0	0	1	1200	775	0	0	0
8	Thandolwethu ,M (Macucwa)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Thandolwethu ,M (Macucwa)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Meyer ,M (Marco)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Meyer ,M (Marco)	1	1200	775	0	0	0	1	1200	775	0	0	0
10	Koopman ,K (Kieron)	1	1	425	0	0	0	1	1	425	0	0	0
10	Koopman ,K (Kieron)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Jacobs, S (Sian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms