Chess South Africa Ratings Database

PLAYER PAGE

Personal

Iuzhakova, H (Heidi)

Chess SA id

2120137358

FIDE id

Date of birth

2012-06-30 (U14)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1183.7

Item	Main	Standard	Rapid	Blitz
Rating	1416.6	1408.3	1332.5	1200
Raw rating	1414.4	1406.6	1332.5	1200
Weighted rating	1416.6	1408.3	1322.9	1200
Weighted performance	1239	1220.9	1020.8	0
Floor	949.1	935.8	832.5	700
K-factor	32	32	36	36
Min/Max rating change allowed	122.2	123.5	137.3	165.8
Highest rating	1475.1 2024-09-01	1435.8 2024-10-01	1332.5 2024-08-01	1200 2018-10-01
Highest raw rating	1449.1 2024-10-01	1435.8 2024-10-01	1332.5 2024-08-01	1200 2024-03-01
Highest weighted rating	1449.1 2025-03-01	1435.8 2025-02-01	1315.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1475.1 2024-09-01	1433.9 2024-09-01	1299.4 2022-07-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.5	0.3	0	0
New rating	1417	1408.7	1332.5	1200
Analysis
Rating	1416.6	1408.3	1332.5	1200
Raw rating	1414.4	1406.6	1332.5	1200
Weighted rating	1416.6	1408.3	1322.9
Weighted performance	1239	1220.9	1020.8
K-factor	32	32	36	36
Floor	949.1	935.8	832.5	700
Max/Min rating change allowed	122.2	123.5	137.3	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	1414.4	1406.6	1332.5	1200
New weighted rating	1417	1408.7	1325	1200
New weighted performance	1230.8	1212.8	1012.8	0
Temp new rating	1417	1408.7	1332.5	1200
Temp new rating +/-	0.5	0.3	0	0
Final new rating +/-	0.5	0.3	0	0
New rating	1417	1408.7	1332.5	1200
New K-factor	32	32	36	36
New floor	949.1	935.8	832.5	700

Item	Main	Standard	Rapid
	0	0	0
	15	15	0
	41	29	12
	46	40	6
	56	34	22
	0	0	0
History	158	118	40

Games since
	Main 56	Standard 44		Rapid 12		Blitz 0
Gender	Female
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2012		621		296
Female	323		115		50
U14	318		101		45
U14 Female	71		27		11
Standard
	RSA		Province		Region
Overall	2003		559		278
Female	340		116		52
U14	329		100		45
U14 Female	81		32		14
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U14	-1		-1		-1
U14 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	15	7	46.67	-28.3	1284.3	1255.9
Standard	15	7	46.67	-28.3	1284.3	1255.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	158	97	61.39	96.8	1265.3	1362.1
Standard	118	73	61.86	100.8	1277.9	1378.7
Rapid	40	24	60	85	1228	1313
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1414.4	1406.6	1332.5	1200
2025-09-30	1414.4	1406.6	1332.5	1200
2025-09-01	1414.4	1406.6	1332.5	1200
2025-08-01	1414.4	1406.6	1332.5	1200
2025-07-01	1413.3	1405.7	1332.5	1200
2025-06-01	1412.1	1404.6	1332.5	1200
2025-05-01	1410.6	1403.3	1332.5	1200
2025-04-01	1406.8	1399.6	1332.5	1200
2025-03-01	1408.5	1400.5	1332.5	1200
2025-02-01	1449.1	1435.8	1332.5	1200
2025-01-01	1449.1	1435.8	1332.5	1200
2024-12-01	1449.1	1435.8	1332.5	1200
2024-11-01	1449.1	1435.8	1332.5	1200
2024-10-01	1449.1	1435.8	1332.5	1200
2024-09-01	1418.8	1396.4	1332.5	1200
2024-08-01	1418.8	1396.4	1332.5	1200
2024-07-01	1398.1	1396.4	1251.9	1200
2024-09-01	1377.8	1387.1	1251.9	1200
2024-05-01	1365.6	1375.3	1251.9	1200
2024-04-01	1365.6	1375.3	1251.9	1200
2024-03-01	1362.9	1376.9	1251.9	1200
2024-02-01	1380.4	1376.9	1256.9	1200
2024-01-01	1380.4	1376.9	1256.9	1200
2023-12-01	1380.4	1376.9	1256.9	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 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	0	0	No	Analysis
2	Western Cape Closed 2025 (B)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	3	0	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U13 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
4	2025 District Central Schools Chess Individual Trials (U13 Girls)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	3	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 (U13 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	0	0	No	Analysis
2	Western Cape Closed 2025 (B)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	3	0	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U13 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
4	2025 District Central Schools Chess Individual Trials (U13 Girls)	2025-01-31	2025-02-01	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	Western Cape Top Schools Championship 2024 (U13 Girls)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	6	4.5	Yes	Analysis
6	CT Metro Central District Top Schools 2024 (U13 Girls)	2024-07-27	2024-07-27	Rapid	Cape Town (WCT)	6	6	6	Yes	Analysis
7	Cape Town Chess Federation Closed Chess Championships 2024 (U14)	2024-06-15	2024-06-16	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
8	Western Cape PS Individuals Championship 2024 (U13 Girls)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	4	Yes	Analysis
9	Cape Town Metro Schools Chess Closed Individuals 2024 (U13 Girls)	2024-03-02	2024-03-03	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
10	CT Metro Central District Schools Chess Individuals Trials 2024 (U13 Girls)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	4	Yes	Analysis
11	Cape of Good Hope Open Chess Tournament 2024 (U12)	2024-02-17	2024-02-17	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
12	Western Cape Top Schools 2023 (U11 Girls)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	6	5	Yes	Analysis
13	CW Top Schools 2023 (U12)	2023-08-12	2023-08-12	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
14	Cape Winelands Open 2023 (U12)	2023-07-23	2023-07-23	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
15	WP Closed 2023 (U12)	2023-06-16	2023-06-17	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
16	Western Cape PS Individuals 2023 (U11 Girls)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
17	Cape Town Metro Schools Chess Closed Individuals 2023 (U11 Girls)	2023-03-03	2023-03-04	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
18	Central District School Trials 2023 (U11 Girls)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	5	Yes	Analysis
19	Cape of Good Hope Open 2023 (U12)	2023-01-28	2023-01-28	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
20	Western Cape Top Schools 2022 (U11 Girls)	2022-09-16	2022-09-17	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
21	Western Cape Closed Championship 2022 (U12)	2022-09-24	2022-09-24	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
22	South African Open 2022 (U12)	2022-07-11	2022-07-13	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
23	Curro Durbanville Chess Open Rapid 2022 (U12)	2022-07-02	2022-07-02	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
24	WP Closed 2022 (U12)	2022-06-16	2022-06-16	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
25	Stellenberg Chess Championship 2022 (U12)	2022-06-25	2022-06-25	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
26	Western Cape Schools 2022 (U11 Girls)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
27	Metro WP Schools Chess Trials 2022 (U11 Girls)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
28	2022 Central District Individual Trials (U11)	2022-03-05	2022-03-05	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis
29	Laerskool Welgemoed 12th Annual Chess Challenge 2022 (U12)	2022-02-19	2022-02-19	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis

#	Games	Start				End
1	8	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-06-16	rnd 6	type Standard	result 1	date 2024-08-30	rnd 1	type Standard	result 0.5
		Opponent Harding, J (Jodie)				Opponent Philander, M (Megan)
2	7	Tournament Western Cape Top Schools 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-09-02	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Barkhuysen, A (Ankia)				Opponent Shumba, O (Onalerona)
3	6	Tournament Central District School Trials 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-02-04	rnd 4	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Maseti, L (Lindokuhle)				Opponent Fani, K (Khazimla)

#	Games	Start				End
1	7	Tournament Western Cape Top Schools 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-09-02	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Barkhuysen, A (Ankia)				Opponent Shumba, O (Onalerona)
2	6	Tournament Central District School Trials 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-02-04	rnd 4	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Maseti, L (Lindokuhle)				Opponent Fani, K (Khazimla)
3	5	Tournament Western Cape Top Schools Championship 2024				Tournament 2025 District Central Schools Chess Individual Trials
		date 2024-08-30	rnd 3	type Standard	result 1	date 2025-01-31	rnd 1	type Standard	result 1
		Opponent Ntontelo, K (Khazimla)				Opponent Yusuf, A (Asiyatu)

#	Games	Start				End
1	6	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-27	rnd 1	type Rapid	result 1	date 2024-07-27	rnd 6	type Rapid	result 1
		Opponent Qoto, A (Asivile)				Opponent Arizona-Jumaine, U (Umu-Rahma)
2	6	Tournament Cape of Good Hope Open 2023				Tournament Cape of Good Hope Open Chess Tournament 2024
		date 2023-01-28	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Lambrechts, K (Kailynn)				Opponent Sun, H (Haojia)
3	2	Tournament Curro Durbanville Chess Open Rapid 2022				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2022-07-02	rnd 3	type Rapid	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Mokhele, A (Anganathi)				Opponent Dadaker, M (Mohammed)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Cape Town Chess Federation Closed Chess Championships 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-06-16	rnd 6	type Standard	result 1	date 2024-07-27	rnd 6	type Rapid	result 1
		Opponent Harding, J (Jodie)				Opponent Arizona-Jumaine, U (Umu-Rahma)
2	7	Tournament Western Cape Top Schools 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-09-02	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Barkhuysen, A (Ankia)				Opponent Shumba, O (Onalerona)
3	6	Tournament Central District School Trials 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-02-04	rnd 4	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Maseti, L (Lindokuhle)				Opponent Fani, K (Khazimla)

#	Games	Start				End
1	7	Tournament Western Cape Top Schools 2023				Tournament CT Metro Central District Schools Chess Individuals Trials 2024
		date 2023-09-02	rnd 3	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent Barkhuysen, A (Ankia)				Opponent Shumba, O (Onalerona)
2	6	Tournament Central District School Trials 2023				Tournament Cape Town Metro Schools Chess Closed Individuals 2023
		date 2023-02-04	rnd 4	type Standard	result 1	date 2023-03-04	rnd 3	type Standard	result 1
		Opponent Maseti, L (Lindokuhle)				Opponent Fani, K (Khazimla)
3	5	Tournament Western Cape Top Schools Championship 2024				Tournament 2025 District Central Schools Chess Individual Trials
		date 2024-08-30	rnd 3	type Standard	result 1	date 2025-01-31	rnd 1	type Standard	result 1
		Opponent Ntontelo, K (Khazimla)				Opponent Yusuf, A (Asiyatu)

#	Games	Start				End
1	6	Tournament CT Metro Central District Top Schools 2024				Tournament CT Metro Central District Top Schools 2024
		date 2024-07-27	rnd 1	type Rapid	result 1	date 2024-07-27	rnd 6	type Rapid	result 1
		Opponent Qoto, A (Asivile)				Opponent Arizona-Jumaine, U (Umu-Rahma)
2	6	Tournament Cape of Good Hope Open 2023				Tournament Cape of Good Hope Open Chess Tournament 2024
		date 2023-01-28	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 3	type Rapid	result 1
		Opponent Lambrechts, K (Kailynn)				Opponent Sun, H (Haojia)
3	2	Tournament Curro Durbanville Chess Open Rapid 2022				Tournament Curro Durbanville Chess Open Rapid 2022
		date 2022-07-02	rnd 3	type Rapid	result 1	date 2022-07-02	rnd 4	type Rapid	result 1
		Opponent Mokhele, A (Anganathi)				Opponent Dadaker, M (Mohammed)

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	Hagen ,S (Sophia)	4	0	-425	4	0	-425	0	0	0	0	0	0
1	Hagen ,S (Sophia)	4	1402.4	977.4	4	1383.8	977.4	0	0	0	0	0	0
2	Qoto ,A (Asivile)	4	4	425	2	2	425	2	2	425	0	0	0
2	Qoto ,A (Asivile)	4	1092.3	1517.3	2	1111.3	1517.3	2	1054.4	1517.3	0	0	0
3	Ntontelo ,K (Khazimla)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Ntontelo ,K (Khazimla)	3	1415.7	1557.4	3	1453	1557.4	0	0	0	0	0	0
4	Srivastava ,P (Prakhar)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Srivastava ,P (Prakhar)	3	1367.7	1226.1	3	1355.3	1226.1	0	0	0	0	0	0
5	Shapiro ,H (Hannah)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Shapiro ,H (Hannah)	3	1267.1	1125.5	3	1252.5	1125.5	0	0	0	0	0	0
6	Schoeman ,M (Mischke)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
6	Schoeman ,M (Mischke)	3	1408.5	1266.8	2	1250.6	1408.5	1	1527.3	983.5	0	0	0
7	Lambrechts ,K (Kailynn)	3	2	141.7	2	1	0	1	1	425	0	0	0
7	Lambrechts ,K (Kailynn)	3	1148.2	1289.8	2	1191.6	1148.2	1	1177.2	1573.2	0	0	0
8	Geldenhuys ,K (Katja)	2	1	0	2	1	0	0	0	0	0	0	0
8	Geldenhuys ,K (Katja)	2	1250.5	1250.5	2	1235.4	1250.5	0	0	0	0	0	0
9	Taute ,E (Edwina)	2	1	0	2	1	0	0	0	0	0	0	0
9	Taute ,E (Edwina)	2	1328.9	1328.9	2	1333.2	1328.9	0	0	0	0	0	0
10	Harding ,J (Jodie)	2	1	0	2	1	0	0	0	0	0	0	0
10	Harding ,J (Jodie)	2	1195.2	1195.2	2	1136.4	1195.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Iuzhakova, H (Heidi)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms