Chess South Africa Ratings Database

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Personal

Clarke, G (Gerda)

Chess SA id

2100304718

FIDE id

14396394

Date of birth

2010-12-07 (U18)

Gender

Female

Region

Sarah Baartman (ESB)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-12-17

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1246.5	1240.1	1200	1200
Raw rating	1246.5	1240.1	1200	1200
Weighted rating	1226.9	1222.8	1200	1200
Weighted performance	1160.9	1163	0	0
Floor	807	811	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	155.2	156.6	165.8	165.8
Highest rating	1307 2025-08-01	1311 2025-08-01	1200 2024-05-01	1200 2024-05-01
Highest raw rating	1307 2025-08-01	1311 2025-08-01	1200 2024-05-01	1200 2024-05-01
Highest weighted rating	1285.8 2024-05-01	1288.9 2024-05-01	1200 2024-05-01	1200 2024-05-01
Highest weighted performance	1307 2025-08-01	1311 2024-12-01	1200 2024-05-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-18.4	-16.5	0	0
New rating	1228.1	1223.6	1200	1200
Analysis
Rating	1246.5	1240.1	1200	1200
Raw rating	1246.5	1240.1	1200	1200
Weighted rating	1226.9	1222.8	1200
Weighted performance	1160.9	1163	0
K-factor	36	36	36	36
Floor	807	811	700	700
Max/Min rating change allowed	155.2	156.6	165.8	165.8
Games	5	5	0	0
Score	0.5	0.5	0	0
Expected score	1.33	1.5	0	0
Score-Expected	-0.83	-1	0	0
Temp raw +/-	-29.9	-36	0	0
Final raw +/-	-29.9	-36	0	0
New raw rating	1216.6	1204.1	1200	1200
New weighted rating	1228.1	1223.6	1200	1200
New weighted performance	1120.5	1119	0	0
Temp new rating	1228.1	1223.6	1200	1200
Temp new rating +/-	-18.4	-16.5	0	0
Final new rating +/-	-18.4	-16.5	0	0
New rating	1228.1	1223.6	1200	1200
New K-factor	36	36	36	36
New floor	807	811	700	700

Item	Main	Standard
	0	0
	31	31
	16	16
	0	0
	0	0
	0	0
History	47	47

Games since
	Main 47	Standard 47		Rapid 0		Blitz 0
Gender	Female
Age group	U16
Region	Sarah Baartman (ESB)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	3387		419		105
Female	701		73		21
U16	537		67		13
U16 Female	140		13		2
Standard
	RSA		Province		Region
Overall	3278		431		108
Female	676		73		19
U16	537		68		14
U16 Female	135		12		2
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	31	16.5	53.23	27.4	1276.6	1304
Standard	31	16.5	53.23	27.4	1276.6	1304
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	47	21.5	45.74	-36.2	1247.3	1211.2
Standard	47	21.5	45.74	-36.2	1247.3	1211.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1246.5	1240.1	1200	1200
2025-11-30	1288.3	1289.4	1200	1200
2025-11-01	1288.3	1289.4	1200	1200
2025-09-30	1288.3	1289.4	1200	1200
2025-09-01	1307	1311	1200	1200
2025-08-01	1307	1311	1200	1200
2025-07-01	1285.8	1288.9	1200	1200
2025-06-01	1285.8	1288.9	1200	1200
2025-05-01	1232	1235	1200	1200
2025-04-01	1191.6	1192.5	1200	1200
2025-03-01	1154.8	1144.8	1200	1200
2025-02-01	1153.9	1143.6	1200	1200
2025-01-01	1123.7	1106.8	1200	1200
2024-12-01	1123.7	1106.8	1200	1200
2024-11-01	1123.7	1106.8	1200	1200
2024-10-01	1123.7	1106.8	1200	1200
2024-09-01	1123.7	1106.8	1200	1200
2024-11-01	1123.7	1106.8	1200	1200
2024-07-01	1120.7	1104	1200	1200
2024-06-01	1121.4	1100.4	1200	1200
2024-05-01	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

Comming soon.

Tournaments

History

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SBDCA Trial 1 2026 (U16+U18)	2026-01-17	2026-01-17	Standard	Sarah Baartman (ESB)	5	5	0.5	Yes	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SBDCA Trial 1 2026 (U16+U18)	2026-01-17	2026-01-17	Standard	Sarah Baartman (ESB)	5	5	0.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	SBDCA Trial 1 2026 (U16+U18)	2026-01-17	2026-01-17	Standard	Sarah Baartman (ESB)	5	5	0.5	Yes	Analysis
2	2025 Mzansi Inter Provincial Team Championships (U16 Girls)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
3	EC Closed 2025 (U16 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
4	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Girls)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3	Yes	Analysis
5	SBDCA Closed 2025 (U16 Girls)	2025-05-10	2025-05-10	Standard	Sarah Baartman (ESB)	6	5	3	Yes	Analysis
6	SBD Trials Graaff Reinet 12 April 2025 (U16)	2025-04-12	2025-04-12	Standard	Sarah Baartman (ESB)	5	5	3	Yes	Analysis
7	SBDCA Trials GRT 22 March 2025 (U16)	2025-03-22	2025-03-22	Standard	Sarah Baartman (ESB)	5	5	3.5	Yes	Analysis
8	SBDCU Graaff-Reinet Trials 2025 (U16)	2025-02-15	2025-02-15	Standard	Sarah Baartman (ESB)	5	4	1.5	Yes	Analysis
9	SBDCU Closed Trials 2024 (U16 Girls)	2024-07-27	2024-07-27	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
10	SBDCU Trial 3 2024 (U16)	2024-06-01	2024-06-01	Standard	Sarah Baartman (ESB)	5	5	2	Yes	Analysis
11	Fountains Mall 2024 (B)	2024-05-17	2024-05-18	Standard	Sarah Baartman (ESB)	6	6	1	Yes	Analysis

#	Games	Start				End
1	7	Tournament SBDCA Trials GRT 22 March 2025				Tournament SBD Trials Graaff Reinet 12 April 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Afrikaner, R (Rochnee)				Opponent Mto, P (Passion)
2	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament EC Closed 2025
		date 2025-07-12	rnd 6	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 0.5
		Opponent Dayimani, A (Amhara)				Opponent Maziena, L (Lavanya)
3	2	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Gosha, S (Samantha)				Opponent Manuel, I (Inile)

#	Games	Start				End
1	7	Tournament SBDCA Trials GRT 22 March 2025				Tournament SBD Trials Graaff Reinet 12 April 2025
		date 2025-03-22	rnd 2	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Afrikaner, R (Rochnee)				Opponent Mto, P (Passion)
2	3	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament EC Closed 2025
		date 2025-07-12	rnd 6	type Standard	result 1	date 2025-09-06	rnd 2	type Standard	result 0.5
		Opponent Dayimani, A (Amhara)				Opponent Maziena, L (Lavanya)
3	2	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Gosha, S (Samantha)				Opponent Manuel, I (Inile)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament SBDCA Trials GRT 22 March 2025				Tournament SBD Trials Graaff Reinet 12 April 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Tomy, D (Denrick)				Opponent Mto, P (Passion)
2	2	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament EC Closed 2025
		date 2025-07-12	rnd 6	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Dayimani, A (Amhara)				Opponent Asare, P (Phoebe)
3	2	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Gosha, S (Samantha)				Opponent Manuel, I (Inile)

#	Games	Start				End
1	5	Tournament SBDCA Trials GRT 22 March 2025				Tournament SBD Trials Graaff Reinet 12 April 2025
		date 2025-03-22	rnd 4	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Tomy, D (Denrick)				Opponent Mto, P (Passion)
2	2	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament EC Closed 2025
		date 2025-07-12	rnd 6	type Standard	result 1	date 2025-09-06	rnd 1	type Standard	result 1
		Opponent Dayimani, A (Amhara)				Opponent Asare, P (Phoebe)
3	2	Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-11	rnd 2	type Standard	result 1	date 2025-07-12	rnd 3	type Standard	result 1
		Opponent Gosha, S (Samantha)				Opponent Manuel, I (Inile)

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	Maziena ,L (Lavanya)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
1	Maziena ,L (Lavanya)	4	1476.8	1158	4	1463.4	1158	0	0	0	0	0	0
2	Tadesse ,I (Isabella)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Tadesse ,I (Isabella)	3	1197.4	1480.7	3	1202.7	1480.7	0	0	0	0	0	0
3	Anthony ,K (Kaylin)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
3	Anthony ,K (Kaylin)	3	1224.1	1224.1	3	1227.9	1224.1	0	0	0	0	0	0
4	Gosha ,S (Samantha)	2	2	425	2	2	425	0	0	0	0	0	0
4	Gosha ,S (Samantha)	2	1139.8	1564.8	2	1133.9	1564.8	0	0	0	0	0	0
5	Grove ,JF (Jacques Francois)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Grove ,JF (Jacques Francois)	2	1431.1	1006.1	2	1420.2	1006.1	0	0	0	0	0	0
6	Manuel ,I (Inile)	2	1	0	2	1	0	0	0	0	0	0	0
6	Manuel ,I (Inile)	2	1238.1	1238.1	2	1241.1	1238.1	0	0	0	0	0	0
7	Sidlayi ,O (Onako)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Sidlayi ,O (Onako)	2	1364.1	939.1	2	1373.5	939.1	0	0	0	0	0	0
8	Mto ,P (Passion)	2	2	425	2	2	425	0	0	0	0	0	0
8	Mto ,P (Passion)	2	1195.7	1620.7	2	1217.8	1620.7	0	0	0	0	0	0
9	Kruger ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Kruger ,M (Matthew)	1	1200	775	1	1200	775	0	0	0	0	0	0
10	Moses ,J (Jesmyn)	1	1	425	1	1	425	0	0	0	0	0	0
10	Moses ,J (Jesmyn)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Clarke, G (Gerda)

Ratings

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Last 24 raw ratings

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Top 3 Streaks

Top 10 opponents most often played

Norms