Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van der Westhuizen, A (Aidan)

Chess SA id

1130323395

FIDE id

Date of birth

2013-08-06 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1193.3	1193.1	1199.5	1200
Raw rating	1157.9	1156.1	1197.7	1200
Weighted rating	1193.3	1193.1	1199.5	1200
Weighted performance	0	0	0	0
Floor	699.9	700	699.9	700
K-factor	40	36	40	36
Min/Max rating change allowed	176.1	176.5	166.4	165.8
Highest rating	1199.9 2025-07-24	1200 2025-08-01	1199.9 2025-07-24	1200 2025-08-01
Highest raw rating	1199.9 2025-07-24	1200 2025-08-01	1199.9 2025-07-24	1200 2025-08-01
Highest weighted rating	1199.9 2025-07-24	1200 2025-08-01	1199.9 2025-07-24	1200 2025-08-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-3.1	-3.2	-0.2	0
New rating	1190.2	1189.9	1199.3	1200
Analysis
Rating	1193.3	1193.1	1199.5	1200
Raw rating	1157.9	1156.1	1197.7	1200
Weighted rating	1193.3	1193.1	1199.5
Weighted performance	0	0	0
K-factor	40	36	40	36
Floor	699.9	700	699.9	700
Max/Min rating change allowed	176.1	176.5	166.4	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	1157.9	1156.1	1197.7	1200
New weighted rating	1190.2	1189.9	1199.3	1200
New weighted performance	0	0	0	0
Temp new rating	1190.2	1189.9	1199.3	1200
Temp new rating +/-	-3.1	-3.2	-0.2	0
Final new rating +/-	-3.1	-3.2	-0.2	0
New rating	1190.2	1189.9	1199.3	1200
New K-factor	40	36	40	36
New floor	699.9	700	699.9	700

Item	Main	Standard	Rapid
	0	0	0
	11	5	6
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	11	5	6

Games since
	Main 11	Standard 5		Rapid 6		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-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	11	3.5	31.82	-154.5	1201.2	1046.6
Standard	5	1	20	-255	1237	982
Rapid	6	2.5	41.67	-70.8	1171.3	1100.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	3.5	31.82	-154.5	1201.2	1046.6
Standard	5	1	20	-255	1237	982
Rapid	6	2.5	41.67	-70.8	1171.3	1100.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1157.9	1156.1	1197.7	1200
2025-09-01	1157.9	1156.1	1197.7	1200
2025-08-01	1198.9	1200	1197.7	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	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
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	Western Cape Women�s Championship 2025 (U14)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	5	1	Yes	Analysis
2	4th Curro Durbanville Rapid Open 2025 (Beginner)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	6	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Women�s Championship 2025 (U14)	2025-08-09	2025-08-09	Standard	West Coast (WCU)	5	5	1	Yes	Analysis
2	4th Curro Durbanville Rapid Open 2025 (Beginner)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	6	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 0.5
		Opponent Adam, M (Mahir)				Opponent Smit, I (Ian)
2	1	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 1
		Opponent Horse, T (Tihano)				Opponent Horse, T (Tihano)

#	Games	Start				End
1	1	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 1
		Opponent Horse, T (Tihano)				Opponent Horse, T (Tihano)

#	Games	Start				End
1	3	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 0.5
		Opponent Adam, M (Mahir)				Opponent Smit, I (Ian)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 5	type Rapid	result 1
		Opponent Adam, M (Mahir)				Opponent Ndokwana, A (Asonele)
2	1	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 1
		Opponent Horse, T (Tihano)				Opponent Horse, T (Tihano)

#	Games	Start				End
1	1	Tournament Western Cape Women�s Championship 2025				Tournament Western Cape Women�s Championship 2025
		date 2025-08-09	rnd 2	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 1
		Opponent Horse, T (Tihano)				Opponent Horse, T (Tihano)

#	Games	Start				End
1	2	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 5	type Rapid	result 1
		Opponent Adam, M (Mahir)				Opponent Ndokwana, A (Asonele)

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	Kotze ,M (Maxlin Lee)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Kotze ,M (Maxlin Lee)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Vlok ,A (Adiaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Vlok ,A (Adiaan)	1	1571.5	1146.5	1	1596.9	1146.5	0	0	0	0	0	0
3	Nel ,L (Luzelle)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Nel ,L (Luzelle)	1	1053.8	628.8	1	1047	628.8	0	0	0	0	0	0
4	Horse ,T (Tihano)	1	1	425	1	1	425	0	0	0	0	0	0
4	Horse ,T (Tihano)	1	1159.8	1584.8	1	1168.6	1584.8	0	0	0	0	0	0
5	Gupta ,A (Ansh)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Gupta ,A (Ansh)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Smit ,I (Ian)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
6	Smit ,I (Ian)	1	1154.4	1154.4	0	0	0	1	1137.3	1154.4	0	0	0
7	Adam ,M (Mahir)	1	1	425	0	0	0	1	1	425	0	0	0
7	Adam ,M (Mahir)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
8	Lekay ,D (Diago)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Lekay ,D (Diago)	1	1198.6	773.6	0	0	0	1	1196	773.6	0	0	0
9	Smit ,M (Mario)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Smit ,M (Mario)	1	1175.2	750.2	0	0	0	1	1186.6	750.2	0	0	0
10	Crofton-Ball ,B (Bradford)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Crofton-Ball ,B (Bradford)	1	1135	710	0	0	0	1	1102.3	710	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, A (Aidan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms