Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, L (Lauren)

Chess SA id

2090192709

FIDE id

Date of birth

2009-09-12 (U18)

Gender

Female

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-14

Personal details last changed

1900-01-01

Junior GPX Games

17.2

Junior GPX Points

1063.4

Item	Main	Standard	Rapid	Blitz
Rating	1173.3	1155.2	1213.9	1200
Raw rating	1173.3	1155.2	1213.9	1200
Weighted rating	1163.4	1151.7	1192.4	1200
Weighted performance	1088.2	0	1089.9	0
Floor	709.9	700	718.5	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.3	176.7	162.6	165.8
Highest rating	1209.9 2025-04-01	1200 2024-02-01	1218.5 2025-03-01	1200 2024-02-01
Highest raw rating	1209.9 2025-04-01	1200 2024-02-01	1218.5 2025-03-01	1200 2024-02-01
Highest weighted rating	1209.9 2024-02-01	1200 2024-02-01	1218.5 2024-02-01	1200 2024-02-01
Highest weighted performance	1200 2024-12-01	1200 2024-02-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1173.3	1155.2	1213.9	1200
Analysis
Rating	1173.3	1155.2	1213.9	1200
Raw rating	1173.3	1155.2	1213.9	1200
Weighted rating	1163.4	1151.7	1192.4
Weighted performance	1088.2	0	1089.9
K-factor	36	36	36	36
Floor	709.9	700	718.5	700
Max/Min rating change allowed	172.3	176.7	162.6	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	1173.3	1155.2	1213.9	1200
New weighted rating	1163.8	1151.2	1194.5	1200
New weighted performance	1087.8	0	1089.4	0
Temp new rating	1173.3	1155.2	1213.9	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1173.3	1155.2	1213.9	1200
New K-factor	36	36	36	36
New floor	709.9	700	718.5	700

Item	Main	Standard	Rapid
	0	0	0
	20	11	9
	25	12	13
	0	0	0
	0	0	0
	0	0	0
History	45	23	22

Games since
	Main 45	Standard 23		Rapid 22		Blitz 0
Gender	Female
Age group	U18
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	4176		1398		163
Female	1041		426		51
U18	596		181		26
U18 Female	115		46		4
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1551		778		191
Female	334		188		55
U18	186		89		34
U18 Female	24		15		4
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	20	10	50	0	1227.1	1227.1
Standard	11	4.5	40.91	-77.3	1216.5	1139.3
Rapid	9	5.5	61.11	94.4	1240	1334.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	45	16	35.56	-122.8	1252.7	1129.9
Standard	23	6.5	28.26	-184.8	1281	1096.2
Rapid	22	9.5	43.18	-58	1223.2	1165.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1173.3	1155.2	1213.9	1200
2025-09-01	1173.3	1155.2	1213.9	1200
2025-08-01	1173.3	1155.2	1213.9	1200
2025-07-01	1168.4	1155.2	1218.5	1200
2025-06-01	1168.4	1155.2	1218.5	1200
2025-05-01	1168.4	1155.2	1218.5	1200
2025-04-01	1209.9	1182.1	1218.5	1200
2025-03-01	1191.3	1157	1218.5	1200
2025-02-01	1155.5	1154.2	1167.8	1200
2025-01-01	1105	1097.6	1126.4	1200
2024-12-01	1105	1097.6	1126.4	1200
2024-11-01	1122.7	1097.6	1174.8	1200
2024-10-01	1122.7	1097.6	1174.8	1200
2024-09-01	1122.7	1097.6	1174.8	1200
2024-08-01	1179.8	1189.6	1174.8	1200
2024-07-01	1179.8	1189.6	1174.8	1200
2024-06-01	1179.8	1189.6	1174.8	1200
2024-08-01	1173.1	1200	1157.2	1200
2024-04-01	1173.1	1200	1157.2	1200
2024-03-01	1173.1	1200	1157.2	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	Lower West Coast Top Schools 2025 (U19)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U17 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
3	West Coast Schools Chess Prestige 2025 (U17 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
4	Lower West Coast Prestige 2025 (U17 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Lower West Coast Top Schools 2025 (U19)	2025-06-14	2025-06-14	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U17 Girls)	2025-04-26	2025-04-27	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
3	West Coast Schools Chess Prestige 2025 (U17 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	5	5	2.5	Yes	Analysis
4	Lower West Coast Prestige 2025 (U17 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3.5	Yes	Analysis
5	West Coast Grand Challange League 2024 (HS Champions)	2024-10-26	2024-10-26	Rapid	West Coast (WCU)	5	5	1	Yes	Analysis
6	Pedro Booyse Top Schools Championships 2024 (U18)	2024-07-20	2024-07-20	Standard	West Coast (WCU)	6	6	0	Yes	Analysis
7	West Coast & Mykonos Open 2024 (Open)	2024-05-17	2024-05-19	Standard	West Coast (WCU)	6	6	2	Yes	Analysis
8	Lower West Top Schools 2024 (U18)	2024-05-11	2024-05-11	Rapid	West Coast (WCU)	5	4	2	Yes	Analysis
9	Lower West Coast Schools Chess Prestige 2024 (U15 Girls)	2024-02-17	2024-02-17	Rapid	West Coast (WCU)	5	4	1	Yes	Analysis

#	Games	Start				End
1	5	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Prestige 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Stewe, R (Raphael)				Opponent Rosenberg, A (Ashlene)
2	4	Tournament Western Cape Schools Individual Championship 2025				Tournament Lower West Coast Top Schools 2025
		date 2025-04-27	rnd 5	type Standard	result 1	date 2025-06-14	rnd 2	type Rapid	result 1
		Opponent Van Rooyen, J (Janel)				Opponent Valentine, K (Kelvin)
3	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 0.5	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent De Bruin, E (Elrise)				Opponent Van Der Westhuizen, C (Courtney)

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-27	rnd 5	type Standard	result 1	date 2025-04-27	rnd 6	type Standard	result 1
		Opponent Van Rooyen, J (Janel)				Opponent Dzadza, O (Olithemba)
2	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 0.5	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent De Bruin, E (Elrise)				Opponent Van Der Westhuizen, C (Courtney)
3	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Claassen, K (Kaylen)				Opponent Claassen, K (Kaylen)

#	Games	Start				End
1	5	Tournament West Coast Grand Challange League 2024				Tournament Lower West Coast Prestige 2025
		date 2024-10-26	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Stewe, R (Raphael)				Opponent Rosenberg, A (Ashlene)
2	2	Tournament Lower West Coast Top Schools 2025				Tournament Lower West Coast Top Schools 2025
		date 2025-06-14	rnd 1	type Rapid	result 1	date 2025-06-14	rnd 2	type Rapid	result 1
		Opponent Lu, DTX (Daniel Ting Xu)				Opponent Valentine, K (Kelvin)
3	2	Tournament Lower West Top Schools 2024				Tournament Lower West Top Schools 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Siebritz, N (Noelle)				Opponent Dietrich, S (Shamiel)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Western Cape Schools Individual Championship 2025				Tournament Lower West Coast Top Schools 2025
		date 2025-04-27	rnd 5	type Standard	result 1	date 2025-06-14	rnd 2	type Rapid	result 1
		Opponent Van Rooyen, J (Janel)				Opponent Valentine, K (Kelvin)
2	3	Tournament Lower West Coast Prestige 2025				Tournament Lower West Coast Prestige 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Claassen, K (Kaylen)				Opponent Rosenberg, A (Ashlene)
3	2	Tournament Lower West Top Schools 2024				Tournament Lower West Top Schools 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Siebritz, N (Noelle)				Opponent Dietrich, S (Shamiel)

#	Games	Start				End
1	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-04-27	rnd 5	type Standard	result 1	date 2025-04-27	rnd 6	type Standard	result 1
		Opponent Van Rooyen, J (Janel)				Opponent Dzadza, O (Olithemba)
2	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 4	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Claassen, K (Kaylen)				Opponent Claassen, K (Kaylen)
3	1	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Van Der Westhuizen, C (Courtney)				Opponent Van Der Westhuizen, C (Courtney)

#	Games	Start				End
1	3	Tournament Lower West Coast Prestige 2025				Tournament Lower West Coast Prestige 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 4	type Rapid	result 1
		Opponent Claassen, K (Kaylen)				Opponent Rosenberg, A (Ashlene)
2	2	Tournament Lower West Coast Top Schools 2025				Tournament Lower West Coast Top Schools 2025
		date 2025-06-14	rnd 1	type Rapid	result 1	date 2025-06-14	rnd 2	type Rapid	result 1
		Opponent Lu, DTX (Daniel Ting Xu)				Opponent Valentine, K (Kelvin)
3	2	Tournament Lower West Top Schools 2024				Tournament Lower West Top Schools 2024
		date 2024-05-11	rnd 4	type Rapid	result 1	date 2024-05-11	rnd 5	type Rapid	result 1
		Opponent Siebritz, N (Noelle)				Opponent Dietrich, S (Shamiel)

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	Visagie ,C (Christopher)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Visagie ,C (Christopher)	3	1431.9	1006.9	3	1392	1006.9	0	0	0	0	0	0
2	Van Zyl ,M (Mea)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Van Zyl ,M (Mea)	2	1496.1	1071.1	2	1486.1	1071.1	0	0	0	0	0	0
3	Lombaard ,J (Jadrin)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Lombaard ,J (Jadrin)	2	1275.6	850.6	2	1155.2	850.6	0	0	0	0	0	0
4	Don ,K (Kyle)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Don ,K (Kyle)	2	1378	953	2	1327.8	953	0	0	0	0	0	0
5	Januarie ,Z (Zanay)	2	1	0	1	0	-425	1	1	425	0	0	0
5	Januarie ,Z (Zanay)	2	1199.2	1199.2	1	1200	774.2	1	1194.5	1624.2	0	0	0
6	Claassen ,K (Kaylen)	2	2	425	1	1	425	1	1	425	0	0	0
6	Claassen ,K (Kaylen)	2	1231.1	1656.1	1	1256.3	1656.1	1	1154	1656.1	0	0	0
7	Prins ,F (Florenique)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Prins ,F (Florenique)	1	1122.1	697.1	1	1062.6	697.1	0	0	0	0	0	0
8	Oewies ,J (Jowan)	1	1	425	1	1	425	0	0	0	0	0	0
8	Oewies ,J (Jowan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Jansen ,G (Gabriella)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Jansen ,G (Gabriella)	1	1414.2	989.2	1	1409.3	989.2	0	0	0	0	0	0
10	Van Rooyen ,J (Janel)	1	1	425	1	1	425	0	0	0	0	0	0
10	Van Rooyen ,J (Janel)	1	1070.2	1495.2	1	1119.5	1495.2	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

Van Der Westhuizen, L (Lauren)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms