Chess South Africa Ratings Database

PLAYER PAGE

Personal

Van Der Westhuizen, A (Annemarie)

Chess SA id

207050551

FIDE id

Date of birth

2007-05-02 (U20)

Gender

Female

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-07-13

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1429.5	1427.3	843.7	818.1
Raw rating	1429.5	1427.3	843.7	818.1
Weighted rating	1428.8	1426.4	843.7	818.1
Weighted performance	1083.4	1083.2	0	0
Floor	956.1	959.5	500	500
K-factor	32	32	40	40
Min/Max rating change allowed	119.6	120	275.5	285.7
Highest rating	1472.2 2023-07-01	1467.2 2023-07-01	1200 2018-02-01	1200 2024-03-01
Highest raw rating	1456.1 2023-08-01	1459.5 2023-08-01	843.7 2024-03-01	818.1 2024-03-01
Highest weighted rating	1456.1 2024-09-01	1459.5 2024-08-01	843.7 2024-11-01	818.1 2024-11-01
Highest weighted performance	1472.2 2023-07-01	1467.2 2023-07-01	1200 2018-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1429.5	1427.3	843.7	818.1
Analysis
Rating	1429.5	1427.3	843.7	818.1
Raw rating	1429.5	1427.3	843.7	818.1
Weighted rating	1428.8	1426.4	843.7
Weighted performance	1083.4	1083.2	0
K-factor	32	32	40	40
Floor	956.1	959.5	500	500
Max/Min rating change allowed	119.6	120	275.5	285.7
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	1429.5	1427.3	843.7	818.1
New weighted rating	1428.8	1426.4	843.7	818.1
New weighted performance	1075.2	1075	0	0
Temp new rating	1429.5	1427.3	843.7	818.1
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1429.5	1427.3	843.7	818.1
New K-factor	32	32	40	40
New floor	956.1	959.5	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	8	8	0
	15	15	0
	31	31	0
	5	5	0
History	321	295	26

Games since
	Main 8	Standard 8		Rapid 0		Blitz 0
Gender	Female
Age group	U20
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 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	120	76.5	63.75	116.9	1134.9	1251.8
Standard	110	69.5	63.18	112	1157.6	1269.6
Rapid	10	7	70	170	885	1055.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1429.5	1427.3	843.7	818.1
2025-09-30	1429.5	1427.3	843.7	818.1
2025-09-01	1429.5	1427.3	843.7	818.1
2025-08-01	1429.5	1427.3	843.7	818.1
2025-07-01	1429.5	1427.3	843.7	818.1
2025-06-01	1429.5	1427.3	843.7	818.1
2025-05-01	1429.5	1427.3	843.7	818.1
2025-04-01	1429.5	1427.3	843.7	818.1
2025-03-01	1429.5	1427.3	843.7	818.1
2025-02-01	1429.2	1426.8	843.7	818.1
2025-01-01	1422.4	1418.6	843.7	818.1
2024-12-01	1422.4	1418.6	843.7	818.1
2024-11-01	1422.4	1418.6	843.7	818.1
2024-10-01	1422.4	1418.6	843.7	818.1
2024-09-01	1422.4	1418.6	843.7	818.1
2024-08-01	1422.4	1418.6	843.7	818.1
2024-07-01	1438.3	1437.8	843.7	818.1
2024-09-01	1438.3	1437.8	843.7	818.1
2024-05-01	1438.3	1437.8	843.7	818.1
2024-04-01	1438.3	1437.8	843.7	818.1
2024-03-01	1438.3	1437.8	843.7	818.1
2024-02-01	1438.3	1437.8	843.7	818.1
2024-01-01	1426.9	1423.7	843.7	818.1
2023-12-01	1426.9	1423.7	843.7	818.1

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	DR KK Gimmies 2024 (A)	2024-07-13	2024-07-13	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis
2	2024 Gauteng Inter-Region Chess Championship (U20 Open+Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	3	Yes	Analysis
3	DR KKD Trials 2023 (U18+U20)	2023-09-02	2023-09-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
4	DR Kenneth Kaunda Volkies 29 Jul 2023 (B)	2023-07-29	2023-07-29	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
5	Dr KKD Curro 2023 (U18)	2023-05-13	2023-05-13	Standard	Dr Kenneth Kaunda (NWP)	5	5	4	Yes	Analysis
6	2022 South African Junior Team Chess Championships (U14-U18 Girls)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
7	Dr. KKD SAJCC Trials September 2022 (U16)	2022-09-03	2022-09-03	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
8	Dr. KKD Volkskool 2022 (U16)	2022-08-20	2022-08-20	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
9	La Hoff Primary School 2022 (B)	2022-07-23	2022-07-23	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
10	Bailie Park Potchefstroom 2022 (U14+U16)	2022-06-04	2022-06-04	Standard	Dr Kenneth Kaunda (NWP)	5	5	4.5	Yes	Analysis
11	La Hoff Dr. KK Chess 2022 (C)	2022-02-19	2022-02-19	Standard	Dr Kenneth Kaunda (NWP)	5	5	5	Yes	Analysis
12	Volkskool Tournament 2021 (Open)	2021-06-26	2021-06-26	Standard	Dr Kenneth Kaunda (NWP)	5	0	0	No	Analysis
13	Saamtrek 2021 (Open)	2021-06-12	2021-06-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
14	Wesvalia 2020 (C)	2020-02-15	2020-02-15	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
15	Matlosana Mall 2019 (C)	2019-10-04	2019-10-04	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
16	Doringkruin 2019 (U14)	2019-06-08	2019-06-08	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
17	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	4	Yes	Analysis
18	South African Junior Team Championships 2018 (U12B Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
19	Boys and Girls 2018 (U12 Girls)	2018-08-25	2018-08-25	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
20	Driefontein Proewe 2018 (O12 Dogters)	2018-07-28	2018-07-28	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
21	President 16 Junie 2018 (U12)	2018-06-16	2018-06-16	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
22	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	3	Yes	Analysis
23	Volkies 2018 (U12)	2018-05-12	2018-05-12	Standard	Dr Kenneth Kaunda (NWP)	5	5	3	Yes	Analysis
24	Hervormde Kerk 2018 (U12)	2018-04-21	2018-04-21	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
25	2018 Crawford Open (D)	2018-03-24	2018-03-24	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

#	Games	Start				End
1	11	Tournament La Hoff Dr. KK Chess 2022				Tournament La Hoff Primary School 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-07-23	rnd 1	type Standard	result 0.5
		Opponent Handford, C (Cassidy)				Opponent Hattingh, JH (Johannes)
2	6	Tournament Dr KKD Curro 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Molefe, LM (Lord Motheo)				Opponent Louw, D (Danial)
3	6	Tournament 2022 South African Junior Team Chess Championships				Tournament Dr KKD Curro 2023
		date 2022-12-04	rnd 2	type Standard	result 1	date 2023-05-13	rnd 1	type Standard	result 1
		Opponent Radia, D (Diya)				Opponent Letshabo, K (Keketso)

#	Games	Start				End
1	11	Tournament La Hoff Dr. KK Chess 2022				Tournament La Hoff Primary School 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-07-23	rnd 1	type Standard	result 0.5
		Opponent Handford, C (Cassidy)				Opponent Hattingh, JH (Johannes)
2	6	Tournament Dr KKD Curro 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Molefe, LM (Lord Motheo)				Opponent Louw, D (Danial)
3	6	Tournament 2022 South African Junior Team Chess Championships				Tournament Dr KKD Curro 2023
		date 2022-12-04	rnd 2	type Standard	result 1	date 2023-05-13	rnd 1	type Standard	result 1
		Opponent Radia, D (Diya)				Opponent Letshabo, K (Keketso)

#	Games	Start				End
1	3	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Van Niekerk, M (Minet)				Opponent Kotze, M (Migael)
2	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 4	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Meiring, CW (Charl Wilhelm)				Opponent Smith, KJ (Kayle)
3	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-04	rnd 2	type Rapid	result 1
		Opponent Van Wyk, L (Leo)				Opponent Nieuwoudt, S (Stiaan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Dr KKD Curro 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Molefe, LM (Lord Motheo)				Opponent Louw, D (Danial)
2	6	Tournament La Hoff Dr. KK Chess 2022				Tournament Bailie Park Potchefstroom 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-06-04	rnd 1	type Standard	result 1
		Opponent Handford, C (Cassidy)				Opponent Wilkens, L (Lene)
3	4	Tournament 2019 Super 12 Laerskole				Tournament Doringkruin 2019
		date 2019-05-04	rnd 4	type Rapid	result 1	date 2019-06-08	rnd 2	type Standard	result 1
		Opponent Meiring, CW (Charl Wilhelm)				Opponent Kaelo, C (Chibysi)

#	Games	Start				End
1	6	Tournament Dr KKD Curro 2023				Tournament DR Kenneth Kaunda Volkies 29 Jul 2023
		date 2023-05-13	rnd 3	type Standard	result 1	date 2023-07-29	rnd 3	type Standard	result 1
		Opponent Molefe, LM (Lord Motheo)				Opponent Louw, D (Danial)
2	6	Tournament La Hoff Dr. KK Chess 2022				Tournament Bailie Park Potchefstroom 2022
		date 2022-02-19	rnd 1	type Standard	result 1	date 2022-06-04	rnd 1	type Standard	result 1
		Opponent Handford, C (Cassidy)				Opponent Wilkens, L (Lene)
3	4	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 2	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Odendaal, Z (Zandri)				Opponent Tarentaal, D (Demi)

#	Games	Start				End
1	3	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Van Niekerk, M (Minet)				Opponent Kotze, M (Migael)
2	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 4	type Rapid	result 1	date 2019-05-04	rnd 5	type Rapid	result 1
		Opponent Meiring, CW (Charl Wilhelm)				Opponent Smith, KJ (Kayle)
3	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 1	date 2019-05-04	rnd 2	type Rapid	result 1
		Opponent Van Wyk, L (Leo)				Opponent Nieuwoudt, S (Stiaan)

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	Van Der Westhuizen ,F (Frederik)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
1	Van Der Westhuizen ,F (Frederik)	4	1489.4	1170.7	4	1489.3	1170.7	0	0	0	0	0	0
2	Ellis ,CE (Catherine Elizabeth)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
2	Ellis ,CE (Catherine Elizabeth)	4	1091.2	878.8	4	1099.6	878.8	0	0	0	0	0	0
3	Molusi ,K (Katlego)	4	1.5	-106.2	4	1.5	-106.2	0	0	0	0	0	0
3	Molusi ,K (Katlego)	4	1398.8	1292.6	4	1399.6	1292.6	0	0	0	0	0	0
4	Goede ,K (Kari)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
4	Goede ,K (Kari)	4	1170.2	1382.7	4	1160.3	1382.7	0	0	0	0	0	0
5	Monchosi ,A (Atlegang)	4	0	-425	4	0	-425	0	0	0	0	0	0
5	Monchosi ,A (Atlegang)	4	1068.3	643.3	4	1072.8	643.3	0	0	0	0	0	0
6	Jerling ,AAM (Alicia)	3	3	425	3	3	425	0	0	0	0	0	0
6	Jerling ,AAM (Alicia)	3	923.1	1348.1	3	879.7	1348.1	0	0	0	0	0	0
7	Molefe ,LM (Lord Motheo)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
7	Molefe ,LM (Lord Motheo)	3	1187.6	1471	3	1184.5	1471	0	0	0	0	0	0
8	Jonker ,DE (Danica Elize)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Jonker ,DE (Danica Elize)	2	1338.3	913.3	2	1345.8	913.3	0	0	0	0	0	0
9	Pretorius ,M (Martin)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
9	Pretorius ,M (Martin)	2	777.2	564.7	2	785.4	564.7	0	0	0	0	0	0
10	Janse Van Rensburg ,N (Nian)	2	2	425	2	2	425	0	0	0	0	0	0
10	Janse Van Rensburg ,N (Nian)	2	1237.8	1662.8	2	1222	1662.8	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, A (Annemarie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms