Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuysen, K (Kay-Lee)

Chess SA id

2090138848

FIDE id

Date of birth

2009-08-18 (U18)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-04-23

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1171	1123.6	1243.6	1200
Raw rating	1171	1123.6	1243.6	1200
Weighted rating	1171	1123.6	1243.6	1200
Weighted performance	0	0	0	0
Floor	729	700	743.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	172.8	184.9	155.8	165.8
Highest rating	1275.7 2022-03-01	1200 2018-10-01	1359.4 2022-03-01	1200 2018-10-01
Highest raw rating	1229 2022-04-01	1200 2019-12-01	1243.6 2024-03-01	1200 2024-03-01
Highest weighted rating	1229 2022-04-01	1200 2018-10-01	1243.6 2024-03-01	1200 2018-10-01
Highest weighted performance	1275.7 2022-03-01	1200 2019-12-01	1359.4 2022-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1171	1123.6	1243.6	1200
Analysis
Rating	1171	1123.6	1243.6	1200
Raw rating	1171	1123.6	1243.6	1200
Weighted rating	1171	1123.6	1243.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	729	700	743.6	700
Max/Min rating change allowed	172.8	184.9	155.8	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	1171	1123.6	1243.6	1200
New weighted rating	1171	1123.6	1243.6	1200
New weighted performance	0	0	0	0
Temp new rating	1171	1123.6	1243.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1171	1123.6	1243.6	1200
New K-factor	36	36	36	36
New floor	729	700	743.6	700

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

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U18
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
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	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
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	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
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	11	5	45.45	-38.6	1179.3	1140.7
Standard	5	1	20	-255	1159.2	904.2
Rapid	6	4	66.67	141.7	1196.1	1337.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1171	1123.6	1243.6	1200
2025-09-01	1171	1123.6	1243.6	1200
2025-08-01	1171	1123.6	1243.6	1200
2025-07-01	1171	1123.6	1243.6	1200
2025-06-01	1171	1123.6	1243.6	1200
2025-05-01	1171	1123.6	1243.6	1200
2025-04-01	1171	1123.6	1243.6	1200
2025-03-01	1171	1123.6	1243.6	1200
2025-02-01	1171	1123.6	1243.6	1200
2025-01-01	1171	1123.6	1243.6	1200
2024-12-01	1171	1123.6	1243.6	1200
2024-11-01	1171	1123.6	1243.6	1200
2024-10-01	1171	1123.6	1243.6	1200
2024-09-01	1171	1123.6	1243.6	1200
2024-08-01	1171	1123.6	1243.6	1200
2024-07-01	1171	1123.6	1243.6	1200
2024-06-01	1171	1123.6	1243.6	1200
2024-08-01	1171	1123.6	1243.6	1200
2024-04-01	1171	1123.6	1243.6	1200
2024-03-01	1171	1123.6	1243.6	1200
2024-02-01	1171	1123.6	1243.6	1200
2024-01-01	1171	1123.6	1243.6	1200
2023-12-01	1171	1123.6	1243.6	1200
2023-11-01	1171	1123.6	1243.6	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	Metro WP Schools Chess Trials 2022 (U13 Girls)	2022-04-22	2022-04-23	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
2	2022 East Dist Individuals (U13)	2022-03-12	2022-03-12	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Kai, R (Rigby)				Opponent Brewer, M (Mia)
2	1	Tournament Metro WP Schools Chess Trials 2022				Tournament Metro WP Schools Chess Trials 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-04-23	rnd 4	type Standard	result 1
		Opponent Chamberlain, C (Chrismari)				Opponent Chamberlain, C (Chrismari)
3	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 3	type Rapid	result 1
		Opponent Akuetteh, D (David)				Opponent Akuetteh, D (David)

#	Games	Start				End
1	1	Tournament Metro WP Schools Chess Trials 2022				Tournament Metro WP Schools Chess Trials 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-04-23	rnd 4	type Standard	result 1
		Opponent Chamberlain, C (Chrismari)				Opponent Chamberlain, C (Chrismari)

#	Games	Start				End
1	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Kai, R (Rigby)				Opponent Brewer, M (Mia)
2	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 3	type Rapid	result 1
		Opponent Akuetteh, D (David)				Opponent Akuetteh, D (David)
3	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-03-12	rnd 1	type Rapid	result 1
		Opponent Eyeghe-Bickong, A (Andree)				Opponent Eyeghe-Bickong, A (Andree)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Kai, R (Rigby)				Opponent Brewer, M (Mia)
2	1	Tournament Metro WP Schools Chess Trials 2022				Tournament Metro WP Schools Chess Trials 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-04-23	rnd 4	type Standard	result 1
		Opponent Chamberlain, C (Chrismari)				Opponent Chamberlain, C (Chrismari)
3	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 3	type Rapid	result 1
		Opponent Akuetteh, D (David)				Opponent Akuetteh, D (David)

#	Games	Start				End
1	1	Tournament Metro WP Schools Chess Trials 2022				Tournament Metro WP Schools Chess Trials 2022
		date 2022-04-23	rnd 4	type Standard	result 1	date 2022-04-23	rnd 4	type Standard	result 1
		Opponent Chamberlain, C (Chrismari)				Opponent Chamberlain, C (Chrismari)

#	Games	Start				End
1	2	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 5	type Rapid	result 1	date 2022-03-12	rnd 6	type Rapid	result 1
		Opponent Kai, R (Rigby)				Opponent Brewer, M (Mia)
2	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 3	type Rapid	result 1	date 2022-03-12	rnd 3	type Rapid	result 1
		Opponent Akuetteh, D (David)				Opponent Akuetteh, D (David)
3	1	Tournament 2022 East Dist Individuals				Tournament 2022 East Dist Individuals
		date 2022-03-12	rnd 1	type Rapid	result 1	date 2022-03-12	rnd 1	type Rapid	result 1
		Opponent Eyeghe-Bickong, A (Andree)				Opponent Eyeghe-Bickong, A (Andree)

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	Chamberlain ,C (Chrismari)	1	1	425	1	1	425	0	0	0	0	0	0
1	Chamberlain ,C (Chrismari)	1	1209.5	1634.5	1	1200	1634.5	0	0	0	0	0	0
2	Sikweza ,B (Busisiwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Sikweza ,B (Busisiwe)	1	1041.8	616.8	1	1029.6	616.8	0	0	0	0	0	0
3	Cloete ,N (Nieka)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Cloete ,N (Nieka)	1	1255.2	830.2	1	1252	830.2	0	0	0	0	0	0
4	Mlahleni ,O (Okuhle)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Mlahleni ,O (Okuhle)	1	1203.1	778.1	1	1172	778.1	0	0	0	0	0	0
5	Williamson ,S (Sarah)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Williamson ,S (Sarah)	1	1086.5	661.5	1	1029.2	661.5	0	0	0	0	0	0
6	Sakati ,L (Linako)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Sakati ,L (Linako)	1	1203.1	778.1	0	0	0	1	1200	778.1	0	0	0
7	Akuetteh ,D (David)	1	1	425	0	0	0	1	1	425	0	0	0
7	Akuetteh ,D (David)	1	1202	1627	0	0	0	1	1200	1627	0	0	0
8	Visagie ,T (Thomas)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Visagie ,T (Thomas)	1	1171.8	746.8	0	0	0	1	1275.7	746.8	0	0	0
9	Kai ,R (Rigby)	1	1	425	0	0	0	1	1	425	0	0	0
9	Kai ,R (Rigby)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
10	Brewer ,M (Mia)	1	1	425	0	0	0	1	1	425	0	0	0
10	Brewer ,M (Mia)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Van Der Westhuysen, K (Kay-Lee)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms