Chess South Africa Ratings Database

PLAYER PAGE

Personal

Jacobs, M (Michelle)

Chess SA id

2070137528

FIDE id

Date of birth

2007-04-11 (U20)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-04-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

972.3

Item	Main	Standard	Rapid	Blitz
Rating	1115.5	1164.2	1127.4	1200
Raw rating	1115.5	1164.2	1127.4	1200
Weighted rating	1110.4	1162.8	1118.8	1200
Weighted performance	855.3	861.8	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	187	174.5	183.9	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1115.5	1164.2	1127.4	1200
Analysis
Rating	1115.5	1164.2	1127.4	1200
Raw rating	1115.5	1164.2	1127.4	1200
Weighted rating	1110.4	1162.8	1118.8
Weighted performance	855.3	861.8	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	187	174.5	183.9	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	1115.5	1164.2	1127.4	1200
New weighted rating	1110.1	1162.7	1118.9	1200
New weighted performance	849.8	856.1	0	0
Temp new rating	1115.5	1164.2	1127.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1115.5	1164.2	1127.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	14	14	0
	17	5	12
	0	0	0
	4	4	0
	0	0	0
History	35	23	12

Games since
	Main 31	Standard 19		Rapid 12		Blitz 0
Gender	Female
Age group	U20
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	14	3.5	25	-212.5	1176.3	963.8
Standard	14	3.5	25	-212.5	1176.3	963.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	35	10.5	30	-170	1153.3	983.3
Standard	23	7.5	32.61	-147.8	1162.9	1015.1
Rapid	12	3	25	-212.5	1134.8	922.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1115.5	1164.2	1127.4	1200
2025-09-30	1115.5	1164.2	1127.4	1200
2025-09-01	1115.5	1164.2	1127.4	1200
2025-08-01	1115.5	1164.2	1127.4	1200
2025-07-01	1115.5	1164.2	1127.4	1200
2025-06-01	1115.5	1164.2	1127.4	1200
2025-05-01	1115.5	1161.6	1127.4	1200
2025-04-01	1116.5	1161.4	1127.4	1200
2025-03-01	1120.2	1164.7	1127.4	1200
2025-02-01	1120.3	1166.7	1126.1	1200
2025-01-01	1080.1	1158	1081.2	1200
2024-12-01	1080.1	1158	1081.2	1200
2024-11-01	1080.1	1158	1081.2	1200
2024-10-01	1080.1	1158	1081.2	1200
2024-09-01	1080.1	1158	1081.2	1200
2024-08-01	1080.1	1158	1081.2	1200
2024-07-01	1080.1	1158	1081.2	1200
2024-09-01	1140	1158	1153.6	1200
2024-05-01	1140	1158	1153.6	1200
2024-04-01	1140	1158	1153.6	1200
2024-03-01	1157.3	1186.8	1153.6	1200
2024-02-01	1187.1	1186.8	1200	1200
2024-01-01	1187.1	1186.8	1200	1200
2023-12-01	1187.1	1186.8	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	Western Cape Schools Individual Championship 2025 (U19 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	5	1	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U19 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U19 Girls)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools Individual Championship 2025 (U19 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	5	1	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U19 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	1	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U19 Girls)	2025-02-08	2025-02-08	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
4	Western Cape - Brian Raubenheimer Development Tournament 2024 (U17 Girls)	2024-06-08	2024-06-08	Rapid	Overberg (WOS)	6	6	1	Yes	Analysis
5	Cape Winelands Schools - Prestige 2024 (U18 Girls)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
6	Cape Winelands Schools - HS Trials 1 2024 (U18 Girls)	2024-02-17	2024-02-17	Rapid	Cape Winelands (WCW)	6	6	2	Yes	Analysis
7	Cape Winelands Schools Top Schools 2022 (U15+U18 Girls)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
8	Central Winelands Schools Individual Trials 2022 (U15 Girls)	2022-02-19	2022-02-19	Rapid	Cape Winelands (WCW)	5	0	0	No	Analysis

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 3	type Standard	result 0.5	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Adams, L (Leigh)				Opponent Oosthuizen, H (Haylee)
2	2	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Keyster, F (Farren)				Opponent Slingers, C (Chanelle)
3	2	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2024-02-17	rnd 2	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Baartman, N (Nicole)				Opponent Papa, L (Lindsay)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Trials 1 2025				Tournament Cape Winelands Schools - Trials 1 2025
		date 2025-02-08	rnd 3	type Standard	result 0.5	date 2025-02-08	rnd 5	type Standard	result 1
		Opponent Adams, L (Leigh)				Opponent Oosthuizen, H (Haylee)
2	2	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Keyster, F (Farren)				Opponent Slingers, C (Chanelle)
3	2	Tournament Cape Winelands Schools Top Schools 2022				Tournament Cape Winelands Schools Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-08-27	rnd 2	type Standard	result 1
		Opponent Davids, M (Milandie)				Opponent Beerwinkel, A (Aretha)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2024-02-17	rnd 2	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Baartman, N (Nicole)				Opponent Papa, L (Lindsay)
2	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 5	type Rapid	result 1	date 2024-06-08	rnd 5	type Rapid	result 1
		Opponent Witbooi, R (Rene)				Opponent Witbooi, R (Rene)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Keyster, F (Farren)				Opponent Slingers, C (Chanelle)
2	2	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2024-02-17	rnd 2	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Baartman, N (Nicole)				Opponent Papa, L (Lindsay)
3	2	Tournament Cape Winelands Schools Top Schools 2022				Tournament Cape Winelands Schools Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-08-27	rnd 2	type Standard	result 1
		Opponent Davids, M (Milandie)				Opponent Beerwinkel, A (Aretha)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 3	type Standard	result 1
		Opponent Keyster, F (Farren)				Opponent Slingers, C (Chanelle)
2	2	Tournament Cape Winelands Schools Top Schools 2022				Tournament Cape Winelands Schools Top Schools 2022
		date 2022-08-27	rnd 1	type Standard	result 1	date 2022-08-27	rnd 2	type Standard	result 1
		Opponent Davids, M (Milandie)				Opponent Beerwinkel, A (Aretha)
3	1	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-26	rnd 1	type Standard	result 1	date 2025-04-26	rnd 1	type Standard	result 1
		Opponent Julius, A (Amy)				Opponent Julius, A (Amy)

#	Games	Start				End
1	2	Tournament Cape Winelands Schools - HS Trials 1 2024				Tournament Cape Winelands Schools - HS Trials 1 2024
		date 2024-02-17	rnd 2	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Baartman, N (Nicole)				Opponent Papa, L (Lindsay)
2	1	Tournament Western Cape - Brian Raubenheimer Development Tournament 2024				Tournament Western Cape - Brian Raubenheimer Development Tournament 2024
		date 2024-06-08	rnd 5	type Rapid	result 1	date 2024-06-08	rnd 5	type Rapid	result 1
		Opponent Witbooi, R (Rene)				Opponent Witbooi, R (Rene)

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	Scheepers ,M (Mieke)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Scheepers ,M (Mieke)	3	1346.8	921.8	3	1244.9	921.8	0	0	0	0	0	0
2	Keyster ,F (Farren)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
2	Keyster ,F (Farren)	3	1087	945.3	2	1156.3	1087	1	1038	662	0	0	0
3	Jacobs ,S (Sunette)	3	0	-425	1	0	-425	2	0	-425	0	0	0
3	Jacobs ,S (Sunette)	3	1189.6	764.6	1	1200	764.6	2	1191.2	764.6	0	0	0
4	Julius ,A (Amy)	2	1	0	2	1	0	0	0	0	0	0	0
4	Julius ,A (Amy)	2	1156.4	1156.4	2	1157.8	1156.4	0	0	0	0	0	0
5	Nortje ,M (Melvinia)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Nortje ,M (Melvinia)	2	1071.3	646.3	2	997.6	646.3	0	0	0	0	0	0
6	Adams ,L (Leigh)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
6	Adams ,L (Leigh)	2	1126.2	913.8	1	1145.6	1126.2	1	1177.7	701.2	0	0	0
7	Baartman ,N (Nicole)	2	2	425	1	1	425	1	1	425	0	0	0
7	Baartman ,N (Nicole)	2	1036.3	1461.3	1	1096.6	1461.3	1	1040	1461.3	0	0	0
8	Grobbelaar ,C (Chanelle)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Grobbelaar ,C (Chanelle)	2	1219.2	794.2	1	1208.3	794.2	1	1144.8	794.2	0	0	0
9	Booysen ,T (Timica)	2	0	-425	0	0	0	2	0	-425	0	0	0
9	Booysen ,T (Timica)	2	1192.2	767.2	0	0	0	2	1112.6	767.2	0	0	0
10	Oosthuizen ,H (Haylee)	1	1	425	1	1	425	0	0	0	0	0	0
10	Oosthuizen ,H (Haylee)	1	1218.3	1643.3	1	1229.7	1643.3	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 (Michelle)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms