Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, M (Mishan)

Chess SA id

2090103577

FIDE id

Date of birth

2009-04-23 (U18)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1147.3	1107.2	1195.8	1068.4
Raw rating	1136.1	1098.7	1184.5	1068.4
Weighted rating	1147.3	1107.2	1195.8	1068.4
Weighted performance	910.4	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	181.6	191.6	169.5	200
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1	-0.7	-1	0
New rating	1146.3	1106.5	1194.8	1068.4
Analysis
Rating	1147.3	1107.2	1195.8	1068.4
Raw rating	1136.1	1098.7	1184.5	1068.4
Weighted rating	1147.3	1107.2	1195.8
Weighted performance	910.4	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	181.6	191.6	169.5	200
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	1136.1	1098.7	1184.5	1068.4
New weighted rating	1146.3	1106.5	1194.8	1068.4
New weighted performance	903.8	0	0	0
Temp new rating	1146.3	1106.5	1194.8	1068.4
Temp new rating +/-	-1	-0.7	-1	0
Final new rating +/-	-1	-0.7	-1	0
New rating	1146.3	1106.5	1194.8	1068.4
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	9	5	4	0
	0	0	0	0
	0	0	0	0
	17	12	5	0
	5	0	5	0
History	53	23	21	9

Games since
	Main 9	Standard 5		Rapid 4		Blitz 0
Gender	Female
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-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	9	2	22.22	-236.1	1362.8	1126.7
Standard	5	1	20	-255	1328.4	1073.4
Rapid	4	1	25	-212.5	1405.9	1193.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	53	19.5	36.79	-112.3	1221.9	1109.6
Standard	23	7	30.43	-166.3	1229	1062.7
Rapid	21	9.5	45.24	-40.5	1221.1	1180.6
Blitz	9	3	33.33	-141.7	1205.5	1063.8

Date	Main	Standard	Rapid	Blitz
2025-11-01	1136.1	1098.7	1184.5	1068.4
2025-09-30	1136.1	1098.7	1184.5	1068.4
2025-09-01	1151.6	1108.8	1184.5	1068.4
2025-08-01	1149.1	1108.8	1199.2	1068.4
2025-07-01	1149.1	1108.8	1199.2	1068.4
2025-06-01	1149.1	1108.8	1199.2	1068.4
2025-05-01	1149.1	1108.8	1199.2	1068.4
2025-04-01	1149.1	1108.8	1199.2	1068.4
2025-03-01	1149.1	1108.8	1199.2	1068.4
2025-02-01	1149.1	1108.8	1199.2	1068.4
2025-01-01	1149.1	1108.8	1199.2	1068.4
2024-12-01	1149.1	1108.8	1199.2	1068.4
2024-11-01	1149.1	1108.8	1199.2	1068.4
2024-10-01	1149.1	1108.8	1199.2	1068.4
2024-09-01	1149.1	1108.8	1199.2	1068.4
2024-08-01	1149.1	1108.8	1199.2	1068.4
2024-07-01	1149.1	1108.8	1199.2	1068.4
2024-09-01	1149.1	1108.8	1199.2	1068.4
2024-05-01	1149.1	1108.8	1199.2	1068.4
2024-04-01	1149.1	1108.8	1199.2	1068.4
2024-03-01	1149.1	1108.8	1199.2	1068.4
2024-02-01	1149.1	1108.8	1199.2	1068.4
2024-01-01	1149.1	1108.8	1199.2	1068.4
2023-12-01	1149.1	1108.8	1199.2	1068.4

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	Western Cape Schools - Top Schools 2025 (U19 Girls)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U15-U19 Girls)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U19 Girls)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U15-U19 Girls)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	4	1	Yes	Analysis
3	Robertson Strategema Club 2022 (U15)	2022-10-29	2022-10-29	Standard	Cape Winelands (WCW)	5	1	0	Yes	Analysis
4	Western Cape Schools 2022 (U13 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
5	Cape Winelands Schools 2022 (U13 Girls)	2022-03-12	2022-03-12	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
6	Central Winelands Schools Individual Trials 2022 (U13 Girls)	2022-02-19	2022-02-19	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
7	Cape Winelands Schools Closed 2021 (U13 Girls)	2021-09-24	2021-09-24	Rapid	Cape Winelands (WCW)	5	5	3	Yes	Analysis
8	Paul Roos Blitz 2020	2020-02-22	2020-02-22	Blitz	Cape Winelands (WCW)	9	9	3	Yes	Analysis
9	Stellenbosch Primary 2019 (U12)	2019-08-31	2019-08-31	Rapid	Cape Winelands (WCW)	7	7	2.5	Yes	Analysis
10	Paul Roos Open Championship 2018 (C)	2018-09-22	2018-09-23	Standard	Cape Winelands (WCW)	6	6	1	Yes	Analysis
11	Stellenberg Youth Chess Champs 2018 (E)	2018-06-23	2018-06-23	Standard	Cape Town (WCT)	5	0	0	No	Analysis

#	Games	Start				End
1	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Cape Winelands Schools 2022
		date 2022-02-19	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 1	type Standard	result 1
		Opponent Cloete, Z (Zoe)				Opponent Van Der Westhuizen, M (Maijke)
2	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Central Winelands Schools Individual Trials 2022
		date 2022-02-19	rnd 1	type Rapid	result 1	date 2022-02-19	rnd 2	type Rapid	result 1
		Opponent Rack, A (Ava)				Opponent Walters, M (Mia)
3	2	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools Closed 2021
		date 2021-09-24	rnd 3	type Rapid	result 1	date 2021-09-24	rnd 4	type Rapid	result 1
		Opponent Laurance, E (Emma)				Opponent Engelbrecht, J (Jane)

#	Games	Start				End
1	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Mushowe, L (Lee-Anne)				Opponent Mushowe, L (Lee-Anne)
2	1	Tournament Western Cape Schools 2022				Tournament Western Cape Schools 2022
		date 2022-05-29	rnd 5	type Standard	result 1	date 2022-05-29	rnd 5	type Standard	result 1
		Opponent Van Der Vyver, M (Michae)				Opponent Van Der Vyver, M (Michae)
3	1	Tournament Western Cape Schools 2022				Tournament Western Cape Schools 2022
		date 2022-05-28	rnd 3	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Sidanga, R (Ronique)				Opponent Sidanga, R (Ronique)

#	Games	Start				End
1	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Central Winelands Schools Individual Trials 2022
		date 2022-02-19	rnd 1	type Rapid	result 1	date 2022-02-19	rnd 2	type Rapid	result 1
		Opponent Rack, A (Ava)				Opponent Walters, M (Mia)
2	2	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools Closed 2021
		date 2021-09-24	rnd 3	type Rapid	result 1	date 2021-09-24	rnd 4	type Rapid	result 1
		Opponent Laurance, E (Emma)				Opponent Engelbrecht, J (Jane)
3	2	Tournament Stellenbosch Primary 2019				Tournament Stellenbosch Primary 2019
		date 2019-08-31	rnd 5	type Rapid	result 0.5	date 2019-08-31	rnd 6	type Rapid	result 1
		Opponent Hemphill, S (Sarah)				Opponent Lourens, A (Arno)

#	Games	Start				End
1	2	Tournament Paul Roos Blitz 2020				Tournament Paul Roos Blitz 2020
		date 2020-02-22	rnd 2	type Blitz	result 1	date 2020-02-22	rnd 3	type Blitz	result 1
		Opponent De Kock, C (Christiaan)				Opponent Isaacs, S (Sean-Patrick)
2	1	Tournament Paul Roos Blitz 2020				Tournament Paul Roos Blitz 2020
		date 2020-02-22	rnd 9	type Blitz	result 1	date 2020-02-22	rnd 9	type Blitz	result 1
		Opponent Smit, T (Tiaan)				Opponent Smit, T (Tiaan)

#	Games	Start				End
1	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Cape Winelands Schools 2022
		date 2022-02-19	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 1	type Standard	result 1
		Opponent Cloete, Z (Zoe)				Opponent Van Der Westhuizen, M (Maijke)
2	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Central Winelands Schools Individual Trials 2022
		date 2022-02-19	rnd 1	type Rapid	result 1	date 2022-02-19	rnd 2	type Rapid	result 1
		Opponent Rack, A (Ava)				Opponent Walters, M (Mia)
3	2	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools Closed 2021
		date 2021-09-24	rnd 3	type Rapid	result 1	date 2021-09-24	rnd 4	type Rapid	result 1
		Opponent Laurance, E (Emma)				Opponent Engelbrecht, J (Jane)

#	Games	Start				End
1	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 5	type Standard	result 1	date 2025-09-07	rnd 5	type Standard	result 1
		Opponent Mushowe, L (Lee-Anne)				Opponent Mushowe, L (Lee-Anne)
2	1	Tournament Western Cape Schools 2022				Tournament Western Cape Schools 2022
		date 2022-05-29	rnd 5	type Standard	result 1	date 2022-05-29	rnd 5	type Standard	result 1
		Opponent Van Der Vyver, M (Michae)				Opponent Van Der Vyver, M (Michae)
3	1	Tournament Western Cape Schools 2022				Tournament Western Cape Schools 2022
		date 2022-05-28	rnd 3	type Standard	result 1	date 2022-05-28	rnd 3	type Standard	result 1
		Opponent Sidanga, R (Ronique)				Opponent Sidanga, R (Ronique)

#	Games	Start				End
1	2	Tournament Central Winelands Schools Individual Trials 2022				Tournament Central Winelands Schools Individual Trials 2022
		date 2022-02-19	rnd 1	type Rapid	result 1	date 2022-02-19	rnd 2	type Rapid	result 1
		Opponent Rack, A (Ava)				Opponent Walters, M (Mia)
2	2	Tournament Cape Winelands Schools Closed 2021				Tournament Cape Winelands Schools Closed 2021
		date 2021-09-24	rnd 3	type Rapid	result 1	date 2021-09-24	rnd 4	type Rapid	result 1
		Opponent Laurance, E (Emma)				Opponent Engelbrecht, J (Jane)
3	1	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Jaftha, L (Luzinda)				Opponent Jaftha, L (Luzinda)

#	Games	Start				End
1	2	Tournament Paul Roos Blitz 2020				Tournament Paul Roos Blitz 2020
		date 2020-02-22	rnd 2	type Blitz	result 1	date 2020-02-22	rnd 3	type Blitz	result 1
		Opponent De Kock, C (Christiaan)				Opponent Isaacs, S (Sean-Patrick)
2	1	Tournament Paul Roos Blitz 2020				Tournament Paul Roos Blitz 2020
		date 2020-02-22	rnd 9	type Blitz	result 1	date 2020-02-22	rnd 9	type Blitz	result 1
		Opponent Smit, T (Tiaan)				Opponent Smit, T (Tiaan)

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	Engelbrecht ,J (Jane)	2	1	0	1	0	-425	1	1	425	0	0	0
1	Engelbrecht ,J (Jane)	2	1217.2	1217.2	1	1210.1	792.2	1	1182.8	1642.2	0	0	0
2	Skippers ,R (Robyn)	2	0	-425	0	0	0	1	0	-425	1	0	-425
2	Skippers ,R (Robyn)	2	972.9	547.9	0	0	0	1	771	547.9	1	520.2	547.9
3	Davids ,B (Bronwyne)	2	1	0	0	0	0	1	1	425	1	0	-425
3	Davids ,B (Bronwyne)	2	1172.2	1172.2	0	0	0	1	1200	1597.2	1	1200	747.2
4	Sebybo ,K (Kesia)	1	1	425	1	1	425	0	0	0	0	0	0
4	Sebybo ,K (Kesia)	1	1153.5	1578.5	1	1200	1578.5	0	0	0	0	0	0
5	Tiemie ,J (Jaheim)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Tiemie ,J (Jaheim)	1	1423.5	998.5	1	1403.8	998.5	0	0	0	0	0	0
6	Groenewald ,A (Ancha)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Groenewald ,A (Ancha)	1	1238.1	813.1	1	1127.8	813.1	0	0	0	0	0	0
7	Mushowe ,L (Lee-Anne)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mushowe ,L (Lee-Anne)	1	1195.4	1620.4	1	1194.6	1620.4	0	0	0	0	0	0
8	Magida ,S (Sinawo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Magida ,S (Sinawo)	1	1430.5	1005.5	1	1451.4	1005.5	0	0	0	0	0	0
9	Macamba ,L (Liso)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Macamba ,L (Liso)	1	1314.7	889.7	1	1286.7	889.7	0	0	0	0	0	0
10	Sidanga ,R (Ronique)	1	1	425	1	1	425	0	0	0	0	0	0
10	Sidanga ,R (Ronique)	1	1262.4	1687.4	1	1274	1687.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Jacobs, M (Mishan)

Ratings

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Historical performance

Last 24 raw ratings

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Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms