Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, E (Erin)

Chess SA id

2160307560

FIDE id

534023100

Date of birth

2016-01-18 (U12)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-12-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1310.8	1309.1	1319.6	1197.6
Raw rating	1310.8	1309.1	1319.6	1184.9
Weighted rating	1275.5	1268.2	1260.7	1197.6
Weighted performance	1224.2	1299.1	1291.3	0
Floor	878.4	841.5	850.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	141.6	141.9	139.8	169.4
Highest rating	1401.9 2025-09-01	1361.5 2025-09-01	1359.5 2025-09-01	1200 2024-10-01
Highest raw rating	1378.4 2025-09-01	1341.5 2025-09-01	1350.2 2025-09-01	1200 2024-10-01
Highest weighted rating	1275.5 2026-01-01	1268.2 2026-01-01	1259.9 2024-07-01	1200 2024-10-01
Highest weighted performance	1401.9 2025-09-01	1361.5 2025-09-01	1359.5 2025-09-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	-1.1
New rating	1310.8	1309.1	1319.6	1196.5
Analysis
Rating	1310.8	1309.1	1319.6	1197.6
Raw rating	1310.8	1309.1	1319.6	1184.9
Weighted rating	1275.5	1268.2	1260.7
Weighted performance	1224.2	1299.1	1291.3
K-factor	36	36	36	36
Floor	878.4	841.5	850.2	700
Max/Min rating change allowed	141.6	141.9	139.8	169.4
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	1310.8	1309.1	1319.6	1184.9
New weighted rating	1280.6	1273.4	1267.5	1196.5
New weighted performance	1216.1	1290.4	1282.5	0
Temp new rating	1310.8	1309.1	1319.6	1196.5
Temp new rating +/-	0	0	0	-1.1
Final new rating +/-	0	0	0	-1.1
New rating	1310.8	1309.1	1319.6	1196.5
New K-factor	36	36	36	36
New floor	878.4	841.5	850.2	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	75	36	31	8
	17	5	12	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	92	41	43	8

Games since
	Main 92	Standard 41		Rapid 43		Blitz 8
Gender	Female
Age group	U10
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2768		885		58
Female	511		199		18
U10	210		57		7
U10 Female	35		17		2
Standard
	RSA		Province		Region
Overall	2746		772		44
Female	510		187		13
U10	221		58		6
U10 Female	37		15		1
Rapid
	RSA		Province		Region
Overall	955		483		54
Female	154		84		14
U10	74		41		13
U10 Female	12		9		2
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	75	42.5	56.67	56.7	1271.4	1328
Standard	36	19	52.78	23.6	1286.4	1310
Rapid	31	20	64.52	123.4	1246.1	1369.5
Blitz	8	3.5	43.75	-53.1	1301.8	1248.7
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	92	51.5	55.98	50.8	1253.4	1304.2
Standard	41	22	53.66	31.1	1278	1309.1
Rapid	43	26	60.47	89	1220.9	1309.8
Blitz	8	3.5	43.75	-53.1	1301.8	1248.7

Date	Main	Standard	Rapid	Blitz
2026-01-01	1310.8	1309.1	1319.6	1184.9
2025-11-30	1346.9	1341.5	1319.6	1184.9
2025-11-01	1355.3	1341.5	1319.6	1200
2025-09-30	1378.4	1341.5	1350.2	1200
2025-09-01	1378.4	1341.5	1350.2	1200
2025-08-01	1318.4	1313.6	1259.9	1200
2025-07-01	1255.5	1246.6	1259.9	1200
2025-06-01	1235.9	1219.9	1259.9	1200
2025-05-01	1253.3	1218.6	1259.9	1200
2025-04-01	1228.9	1218.6	1228.7	1200
2025-03-01	1222.6	1220.8	1228.7	1200
2025-02-01	1203.2	1220.8	1190.5	1200
2025-01-01	1202.6	1220.8	1174	1200
2024-12-01	1202.6	1220.8	1174	1200
2024-11-01	1202.6	1220.8	1174	1200
2024-10-01	1202.6	1220.8	1174	1200
2024-09-01	1218.6	1220.8	1200	1200
2024-11-01	1218.6	1220.8	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	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

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Mzansi Individual Championships (U10 Girls)	2025-12-17	2025-12-20	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
2	2025 Mzansi Inter Provincial Team Championships (U10 Combined)	2025-12-15	2025-12-17	Standard	Nelson Mandela Bay (ENM)	6	6	2.5	Yes	Analysis
3	Hermanus Chess Club November Blitz 2025 (Junior)	2025-11-29	2025-11-29	Blitz	Overberg (WOS)	9	8	3.5	Yes	Analysis
4	Curro Hermanus Spring Open 2025 (U9)	2025-10-18	2025-10-18	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
5	Kleinmond Chess Club Open 2025 (U10)	2025-08-30	2025-08-30	Rapid	Overberg (WOS)	6	6	5	Yes	Analysis
6	Curro Chess Open Rapid 2025 (U10)	2025-08-23	2025-08-23	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
7	Overberg Top Schools 2025 (U7+U9)	2025-08-02	2025-08-02	Standard	Overberg (WOS)	5	5	3.5	Yes	Analysis
8	Cape Winelands Open 2025 (U10)	2025-07-19	2025-07-19	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
9	Helderberg Chess Club Open 2025 (U9)	2025-06-07	2025-06-07	Standard	Cape Town (WCT)	5	5	3	Yes	Analysis
10	Western Cape Schools Individual Championship 2025 (U9 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
11	West Coast And Mykonos Open 2025 (U10)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	5	4	1	Yes	Analysis
12	Hermanus Chess Club Open 2025 (U10)	2025-04-12	2025-04-12	Rapid	Overberg (WOS)	7	7	4	Yes	Analysis
13	Cape Town Open Chess Festival 2025 (U10)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
14	Overberg Schools - PS Closed 2025 (U9 Girls)	2025-03-08	2025-03-08	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
15	Overberg Schools - PS Trials (Region 1) 2025 (U9 Girls)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	4	Yes	Analysis
16	Kingsway Chess Open 2024 (U8)	2024-09-14	2024-09-14	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
17	Kleinmond Chess Club Open 2024 (U10)	2024-09-07	2024-09-07	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
18	Overberg Schools - Top Schools 2024 (U7+U9 Mixed)	2024-07-27	2024-07-27	Standard	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	5	Tournament Overberg Top Schools 2025				Tournament Curro Chess Open Rapid 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-23	rnd 1	type Rapid	result 1
		Opponent Mullins, L (Lucy-May)				Opponent Adam, M (Mahir)
2	4	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Mueller, N (Noah)				Opponent Sander, H (Hannah)
3	4	Tournament West Coast And Mykonos Open 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-04	rnd 5	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Ruiter, C (Charltonica)				Opponent Swanepoel, M (Mariaan)

#	Games	Start				End
1	4	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 5	type Standard	result 0.5
		Opponent Mullins, L (Lucy-May)				Opponent Oosthuizen, J (Josua)
2	4	Tournament West Coast And Mykonos Open 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-04	rnd 5	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Ruiter, C (Charltonica)				Opponent Swanepoel, M (Mariaan)
3	2	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 4	type Standard	result 1	date 2025-07-19	rnd 5	type Standard	result 1
		Opponent Baker, J (Jessica)				Opponent Klopper, E (Elbe)

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Mueller, N (Noah)				Opponent Sander, H (Hannah)
2	4	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mohafa, T (Tlhono)				Opponent Shai, M (Mpho)
3	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-07	rnd 4	type Rapid	result 1	date 2024-09-14	rnd 1	type Rapid	result 1
		Opponent Groenewald, T (Tamara)				Opponent Sikolo, S (Sithandiwe)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Mueller, N (Noah)				Opponent Sander, H (Hannah)
2	4	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mohafa, T (Tlhono)				Opponent Shai, M (Mpho)
3	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-07	rnd 4	type Rapid	result 1	date 2024-09-14	rnd 1	type Rapid	result 1
		Opponent Groenewald, T (Tamara)				Opponent Sikolo, S (Sithandiwe)

#	Games	Start				End
1	3	Tournament Overberg Top Schools 2025				Tournament Overberg Top Schools 2025
		date 2025-08-02	rnd 2	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Mullins, L (Lucy-May)				Opponent Schutte, L (Luan)
2	2	Tournament Cape Winelands Open 2025				Tournament Cape Winelands Open 2025
		date 2025-07-19	rnd 4	type Standard	result 1	date 2025-07-19	rnd 5	type Standard	result 1
		Opponent Baker, J (Jessica)				Opponent Klopper, E (Elbe)
3	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 2	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Hodgson, N (Neva)				Opponent Swanepoel, M (Mariaan)

#	Games	Start				End
1	4	Tournament Kleinmond Chess Club Open 2025				Tournament Kleinmond Chess Club Open 2025
		date 2025-08-30	rnd 3	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Mueller, N (Noah)				Opponent Sander, H (Hannah)
2	4	Tournament Overberg Schools - PS Trials (Region 1) 2025				Tournament Overberg Schools - PS Trials (Region 1) 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 5	type Rapid	result 1
		Opponent Mohafa, T (Tlhono)				Opponent Shai, M (Mpho)
3	4	Tournament Kleinmond Chess Club Open 2024				Tournament Kingsway Chess Open 2024
		date 2024-09-07	rnd 4	type Rapid	result 1	date 2024-09-14	rnd 1	type Rapid	result 1
		Opponent Groenewald, T (Tamara)				Opponent Sikolo, S (Sithandiwe)

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	Tshota ,E (Enkosi)	3	0	-425	1	0	-425	2	0	-425	0	0	0
1	Tshota ,E (Enkosi)	3	1214.3	789.3	1	1174.9	789.3	2	1207	789.3	0	0	0
2	Akemdien ,A (Alex)	3	0	-425	1	0	-425	2	0	-425	0	0	0
2	Akemdien ,A (Alex)	3	1564	1139	1	1531.7	1139	2	1474.9	1139	0	0	0
3	Crafford ,Q (Quade)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Crafford ,Q (Quade)	2	1375.8	950.8	2	1359	950.8	0	0	0	0	0	0
4	Rasekgololo ,B (Bandile)	2	2	425	2	2	425	0	0	0	0	0	0
4	Rasekgololo ,B (Bandile)	2	1175.1	1600.1	2	1176.4	1600.1	0	0	0	0	0	0
5	Du Preez ,J (Janco)	2	1	0	2	1	0	0	0	0	0	0	0
5	Du Preez ,J (Janco)	2	1260.8	1260.8	2	1221.9	1260.8	0	0	0	0	0	0
6	Klopper ,E (Elbe)	2	1	0	2	1	0	0	0	0	0	0	0
6	Klopper ,E (Elbe)	2	1417.4	1417.4	2	1426.1	1417.4	0	0	0	0	0	0
7	Harikisun ,A (Aaheli)	2	1.5	212.5	1	0.5	0	1	1	425	0	0	0
7	Harikisun ,A (Aaheli)	2	1177.9	1390.4	1	1187.4	1177.9	1	1182.6	1602.9	0	0	0
8	Shai ,M (Mpho)	2	1	0	1	0	-425	1	1	425	0	0	0
8	Shai ,M (Mpho)	2	1169.9	1169.9	1	1150.5	744.9	1	1200	1594.9	0	0	0
9	Lourens ,L (Lihan)	2	1	0	0	0	0	1	0	-425	1	1	425
9	Lourens ,L (Lihan)	2	1403.1	1403.1	0	0	0	1	1342	978.1	1	1200	1828.1
10	Nel ,J (Joshua)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Nel ,J (Joshua)	1	1551.2	1126.2	1	1532.8	1126.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Van Der Westhuizen, E (Erin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms