Chess South Africa Ratings Database

PLAYER PAGE

Personal

Zembeta, M (Mary Siyamthanda)

Chess SA id

2160300524

FIDE id

Date of birth

2016-04-12 (U10)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-02

Personal details last changed

1900-01-01

Junior GPX Games

29.6

Junior GPX Points

1131.1

Item	Main	Standard	Rapid	Blitz
Rating	1190.8	1227.1	1170.3	1200
Raw rating	1190.8	1227.1	1170.3	1200
Weighted rating	1165.9	1184.7	1168.8	1200
Weighted performance	1107.2	1171.1	940.8	0
Floor	712.8	736.2	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	168	159.5	173	165.8
Highest rating	1212.8 2025-06-01	1236.2 2025-06-01	1462.8 2024-03-01	1200 2024-04-01
Highest raw rating	1212.8 2025-06-01	1236.2 2025-06-01	1200 2024-04-01	1200 2024-04-01
Highest weighted rating	1212.8 2024-03-01	1236.2 2024-03-01	1200 2024-04-01	1200 2024-04-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1462.8 2024-03-01	1200 2024-04-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1190.8	1227.1	1170.3	1200
Analysis
Rating	1190.8	1227.1	1170.3	1200
Raw rating	1190.8	1227.1	1170.3	1200
Weighted rating	1165.9	1184.7	1168.8
Weighted performance	1107.2	1171.1	940.8
K-factor	36	36	36	36
Floor	712.8	736.2	700	700
Max/Min rating change allowed	168	159.5	173	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	1190.8	1227.1	1170.3	1200
New weighted rating	1168.2	1189.1	1168.4	1200
New weighted performance	1100.4	1163.8	934.7	0
Temp new rating	1190.8	1227.1	1170.3	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1190.8	1227.1	1170.3	1200
New K-factor	36	36	36	36
New floor	712.8	736.2	700	700

Item	Main	Standard	Rapid
	0	0	0
	34	22	12
	29	15	14
	5	0	5
	0	0	0
	0	0	0
History	68	37	31

Games since
	Main 68	Standard 37		Rapid 31		Blitz 0
Gender	Female
Age group	U10
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4191		1407		545
Female	1021		408		120
U10	401		138		42
U10 Female	97		41		9
Standard
	RSA		Province		Region
Overall	3855		1099		449
Female	890		327		111
U10	348		101		29
U10 Female	72		29		8
Rapid
	RSA		Province		Region
Overall	1803		891		336
Female	430		230		56
U10	187		99		36
U10 Female	52		24		7
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U10	-1		-1		-1
U10 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	34	16	47.06	-25	1226.8	1201.8
Standard	22	12.5	56.82	58	1231.2	1289.1
Rapid	12	3.5	29.17	-177.1	1219	1041.9
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	68	29.5	43.38	-56.2	1218.2	1162
Standard	37	16.5	44.59	-45.9	1225.5	1179.5
Rapid	31	13	41.94	-68.5	1209.5	1141
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1190.8	1227.1	1170.3	1200
2025-09-30	1190.8	1227.1	1170.3	1200
2025-09-01	1190.8	1227.1	1170.3	1200
2025-08-01	1190.4	1236.2	1170.3	1200
2025-07-01	1190.4	1236.2	1168.9	1200
2025-06-01	1212.8	1236.2	1173.4	1200
2025-05-01	1202.8	1226.3	1173.4	1200
2025-04-01	1202.8	1226.3	1173.4	1200
2025-03-01	1153.2	1172.4	1171.1	1200
2025-02-01	1142.3	1140.5	1172.2	1200
2025-01-01	1100	1106	1129.6	1200
2024-12-01	1100	1106	1129.6	1200
2024-11-01	1100	1106	1129.6	1200
2024-10-01	1117.7	1106	1177.6	1200
2024-09-01	1117.7	1106	1177.6	1200
2024-08-01	1117.7	1106	1177.6	1200
2024-07-01	1117.7	1106	1177.6	1200
2024-09-01	1147.6	1145.6	1177.6	1200
2024-05-01	1151.9	1145.6	1200	1200
2024-04-01	1151.9	1145.6	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

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	Cape Town Metro Top Schools District Central 2025 (U9)	2025-08-02	2025-08-02	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	6	2	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U9 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	CT Metro Schools Individual Closed 2025 (U9 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
5	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	1.5	Yes	Analysis
6	2025 District Central Schools Chess Individual Trials (U9 Girls)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Metro Top Schools District Central 2025 (U9)	2025-08-02	2025-08-02	Standard	Cape Town (WCT)	5	5	2.5	Yes	Analysis
2	Cape Town Chess Junior League 2025 (U8+U10 Development)	2025-05-23	2025-05-31	Rapid	Cape Town (WCT)	7	6	2	Yes	Analysis
3	Western Cape Schools Individual Championship 2025 (U9 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
4	CT Metro Schools Individual Closed 2025 (U9 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
5	Cape of Good Hope Open 2025 (U10)	2025-02-22	2025-02-22	Rapid	Cape Town (WCT)	6	6	1.5	Yes	Analysis
6	2025 District Central Schools Chess Individual Trials (U9 Girls)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	5	3	Yes	Analysis
7	UCT Open Chess Championship 2024 (U10)	2024-10-12	2024-10-13	Rapid	Cape Town (WCT)	6	5	1	Yes	Analysis
8	CT Metro Central District Top Schools 2024 (U7+U9 Mixed)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	5	4	2	Yes	Analysis
9	Cape Town Chess Federation Closed Chess Championships 2024 (U10)	2024-06-15	2024-06-15	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
10	Steinitz Chess Festival 2024 (U10)	2024-05-11	2024-05-11	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
11	Cape Town Metro Schools Chess Closed Individuals 2024 (U9 Girls)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
12	CT Metro Central District Schools Chess Individuals Trials 2024 (U9 Girls)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	2	Yes	Analysis
13	Gugulethu Chess College Bashment Cup 2023 (U7)	2023-12-06	2023-12-06	Rapid	Cape Town (WCT)	5	5	4.5	Yes	Analysis

#	Games	Start				End
1	6	Tournament Gugulethu Chess College Bashment Cup 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-12-06	rnd 1	type Rapid	result 1	date 2024-02-03	rnd 1	type Standard	result 1
		Opponent Mdabuli, N (Nhlanhla)				Opponent Adams, M (Mariam)
2	4	Tournament 2025 District Central Schools Chess Individual Trials				Tournament 2025 District Central Schools Chess Individual Trials
		date 2025-02-01	rnd 3	type Standard	result 0.5	date 2025-02-01	rnd 6	type Standard	result 1
		Opponent Meer, M (Maryam Hasanah)				Opponent Nongogo, A (Akhona)
3	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-18	rnd 5	type Standard	result 1
		Opponent Kotze, Z (Ziandre)				Opponent Jordaan, Z (Zoila)

#	Games	Start				End
1	5	Tournament 2025 District Central Schools Chess Individual Trials				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-01	rnd 3	type Standard	result 0.5	date 2025-03-01	rnd 1	type Standard	result 1
		Opponent Meer, M (Maryam Hasanah)				Opponent Camacho, E (Emma)
2	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-18	rnd 5	type Standard	result 1
		Opponent Kotze, Z (Ziandre)				Opponent Jordaan, Z (Zoila)
3	2	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-02	rnd 4	type Standard	result 1
		Opponent Dirks, G (Gia)				Opponent Jogee, N (Nuriya)

#	Games	Start				End
1	5	Tournament Gugulethu Chess College Bashment Cup 2023				Tournament Gugulethu Chess College Bashment Cup 2023
		date 2023-12-06	rnd 1	type Rapid	result 1	date 2023-12-06	rnd 5	type Rapid	result 1
		Opponent Mdabuli, N (Nhlanhla)				Opponent Mlungu, L (Linomtha)
2	2	Tournament Cape of Good Hope Open 2025				Tournament Cape of Good Hope Open 2025
		date 2025-02-22	rnd 3	type Rapid	result 0.5	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Kumar, D (Devaansh)				Opponent Shaw, F (Fraser)
3	2	Tournament Steinitz Chess Festival 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-05-11	rnd 5	type Rapid	result 0.5	date 2024-07-27	rnd 1	type Rapid	result 1
		Opponent Dhorat, A (Abdur Rahman)				Opponent Taliep, E (Eesa)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Gugulethu Chess College Bashment Cup 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-12-06	rnd 4	type Rapid	result 1	date 2024-02-03	rnd 1	type Standard	result 1
		Opponent Magi, A (Aqhame Alizwa)				Opponent Adams, M (Mariam)
2	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-18	rnd 5	type Standard	result 1
		Opponent Kotze, Z (Ziandre)				Opponent Jordaan, Z (Zoila)
3	2	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-02	rnd 4	type Standard	result 1
		Opponent Dirks, G (Gia)				Opponent Jogee, N (Nuriya)

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-18	rnd 5	type Standard	result 1
		Opponent Kotze, Z (Ziandre)				Opponent Jordaan, Z (Zoila)
2	2	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 3	type Standard	result 1	date 2025-03-02	rnd 4	type Standard	result 1
		Opponent Dirks, G (Gia)				Opponent Jogee, N (Nuriya)
3	2	Tournament 2025 District Central Schools Chess Individual Trials				Tournament CT Metro Schools Individual Closed 2025
		date 2025-02-01	rnd 6	type Standard	result 1	date 2025-03-01	rnd 1	type Standard	result 1
		Opponent Nongogo, A (Akhona)				Opponent Camacho, E (Emma)

#	Games	Start				End
1	2	Tournament Gugulethu Chess College Bashment Cup 2023				Tournament Gugulethu Chess College Bashment Cup 2023
		date 2023-12-06	rnd 4	type Rapid	result 1	date 2023-12-06	rnd 5	type Rapid	result 1
		Opponent Magi, A (Aqhame Alizwa)				Opponent Mlungu, L (Linomtha)
2	2	Tournament Gugulethu Chess College Bashment Cup 2023				Tournament Gugulethu Chess College Bashment Cup 2023
		date 2023-12-06	rnd 1	type Rapid	result 1	date 2023-12-06	rnd 2	type Rapid	result 1
		Opponent Mdabuli, N (Nhlanhla)				Opponent May, S (Sinelizwi)
3	1	Tournament Cape Town Chess Junior League 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-23	rnd 2	type Rapid	result 1	date 2025-05-23	rnd 2	type Rapid	result 1
		Opponent Booi, L (Lingomso)				Opponent Booi, L (Lingomso)

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	Adams ,M (Mariam)	5	1	-255	5	1	-255	0	0	0	0	0	0
1	Adams ,M (Mariam)	5	1233.4	978.4	5	1222.9	978.4	0	0	0	0	0	0
2	Javed ,M (Mariam)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
2	Javed ,M (Mariam)	3	1182.9	899.6	3	1221.1	899.6	0	0	0	0	0	0
3	Meer ,M (Maryam Hasanah)	3	1.5	0	2	1.5	212.5	1	0	-425	0	0	0
3	Meer ,M (Maryam Hasanah)	3	1197.2	1197.2	2	1192.5	1409.7	1	1200	772.2	0	0	0
4	Jogee ,N (Nuriya)	2	2	425	2	2	425	0	0	0	0	0	0
4	Jogee ,N (Nuriya)	2	1201.8	1626.8	2	1201.3	1626.8	0	0	0	0	0	0
5	Sher ,I (Ivy)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Sher ,I (Ivy)	2	1188.8	763.8	2	1190.4	763.8	0	0	0	0	0	0
6	May ,A (Avumile)	2	0.5	-212.5	0	0	0	2	0.5	-212.5	0	0	0
6	May ,A (Avumile)	2	1196.8	984.3	0	0	0	2	1219.4	984.3	0	0	0
7	Drude ,E (Eiliyah)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Drude ,E (Eiliyah)	1	1372.4	947.4	1	1376.5	947.4	0	0	0	0	0	0
8	Bouziane ,H (Hayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Bouziane ,H (Hayden)	1	1184.8	759.8	1	1188.8	759.8	0	0	0	0	0	0
9	Taylor ,M (Morgan Zita)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Taylor ,M (Morgan Zita)	1	1301.8	876.8	1	1316.6	876.8	0	0	0	0	0	0
10	Chumpitaz Avila ,J (Josef)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Chumpitaz Avila ,J (Josef)	1	1207.8	782.8	1	1123.2	782.8	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Zembeta, M (Mary Siyamthanda)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms