Chess South Africa Ratings Database

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Personal

Van Jaarsveld, A (Anje)

Chess SA id

204076116

FIDE id

Date of birth

2004-07-14 (Adult)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

WRM

Chess SA registered

Last active game

2025-07-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1650.1	1658.4	1606.1	1813
Raw rating	1650.1	1658.4	1606.1	1813
Weighted rating	1630.6	1643.7	1598.8	1803.6
Weighted performance	1418.1	1419.7	0	0
Floor	1150.1	1158.4	1106.1	1313
K-factor	28	28	28	24
Min/Max rating change allowed	87.3	86.3	93	69.2
Highest rating	1650.1 2025-08-01	1658.4 2025-08-01	1606.1 2024-02-01	1813 2024-02-01
Highest raw rating	1650.1 2025-08-01	1658.4 2025-08-01	1606.1 2024-02-01	1813 2024-02-01
Highest weighted rating	1642 2023-12-01	1640.5 2025-08-01	1581.8 2025-08-01	1781.8 2025-08-01
Highest weighted performance	1602.8 2024-04-01	1608.2 2024-04-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1650.1	1658.4	1606.1	1813
Analysis
Rating	1650.1	1658.4	1606.1	1813
Raw rating	1650.1	1658.4	1606.1	1813
Weighted rating	1630.6	1643.7	1598.8
Weighted performance	1418.1	1419.7	0
K-factor	28	28	28	24
Floor	1150.1	1158.4	1106.1	1313
Max/Min rating change allowed	87.3	86.3	93	69.2
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	1650.1	1658.4	1606.1	1813
New weighted rating	1632.4	1645.1	1603.7	1809.8
New weighted performance	1417.6	1419.1	0	0
Temp new rating	1650.1	1658.4	1606.1	1813
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1650.1	1658.4	1606.1	1813
New K-factor	28	28	28	24
New floor	1150.1	1158.4	1106.1	1313

Item	Main	Standard	Rapid
	0	0	0
	11	11	0
	16	16	0
	14	14	0
	16	16	0
	12	12	0
History	281	275	6

Games since
	Main 41	Standard 41		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	442		174		70
Female	26		9		6
Adult	228		93		40
Adult Female	9		1		1
Standard
	RSA		Province		Region
Overall	391		158		63
Female	21		9		6
Adult	204		87		34
Adult Female	7		1		1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult 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	11	6.5	59.09	77.3	1606	1683.3
Standard	11	6.5	59.09	77.3	1606	1683.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	194	117	60.31	87.6	1333.6	1421.2
Standard	194	117	60.31	87.6	1333.6	1421.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1650.1	1658.4	1606.1	1813
2025-09-01	1650.1	1658.4	1606.1	1813
2025-08-01	1650.1	1658.4	1606.1	1813
2025-07-01	1625.7	1640.2	1606.1	1813
2025-06-01	1625.7	1640.2	1606.1	1813
2025-05-01	1625.7	1640.2	1606.1	1813
2025-04-01	1625.7	1640.2	1606.1	1813
2025-03-01	1625.7	1640.2	1606.1	1813
2025-02-01	1625.7	1640.2	1606.1	1813
2025-01-01	1625.6	1640.2	1606.1	1813
2024-12-01	1625.6	1640.2	1606.1	1813
2024-11-01	1625.6	1640.2	1606.1	1813
2024-10-01	1625.6	1640.2	1606.1	1813
2024-09-01	1625.6	1640.2	1606.1	1813
2024-08-01	1625.6	1640.2	1606.1	1813
2024-07-01	1625.6	1640.2	1606.1	1813
2024-06-01	1625.6	1640.2	1606.1	1813
2024-08-01	1625.6	1640.2	1606.1	1813
2024-04-01	1612.7	1629	1606.1	1813
2024-03-01	1612.7	1629	1606.1	1813
2024-02-01	1612.7	1629	1606.1	1813
2024-01-01	1619.6	1638.2	1606.1	1813
2023-12-01	1619.6	1619	877	877
2023-11-01	1642	1640.6	877	877

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	South African Open 2025 (Ladies)	2025-06-28	2025-07-05	Standard	Johannesburg Metro (GJM)	11	11	6.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	South African Open 2025 (Ladies)	2025-06-28	2025-07-05	Standard	Johannesburg Metro (GJM)	11	11	6.5	Yes	Analysis
2	USSA Closed Championships 2024 (Ladies)	2024-04-12	2024-04-14	Standard	Tshwane (GTP)	6	6	5	Yes	Analysis
3	2024 Gauteng Inter-Region Chess Championship (U20 Open+Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
4	JMC Kick Off Tournament 2024 (A)	2024-01-28	2024-01-28	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
5	2023 USSA Championships (Ladies)	2023-12-04	2023-12-08	Standard	Ethekwini (KED)	9	9	7	Yes	Analysis
6	2023 Tuks Open Chess Tournament (A)	2023-10-07	2023-10-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
7	South African Junior Closed Chess Championships 2022 (U18 Girls)	2022-03-28	2022-04-02	Standard	Chess South Africa (CSA)	11	11	9.5	Yes	Analysis
8	2022 Gauteng Interregion (U18 Open)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
9	2021 African Youth Chess Championships	2021-09-19	2021-09-25	Standard	Ghana (GHA)	9	7	6	Yes	Analysis
10	Ekurhuleni Chess Chessa Open 2021 (A)	2021-03-27	2021-03-28	Standard	Ekurhuleni (GE)	5	5	2.5	Yes	Analysis
11	2020 Waterkloof Open (A)	2020-02-29	2020-03-01	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
12	2020 Piet Robbertse (B)	2020-01-31	2020-02-02	Standard	Cape Winelands (WCW)	5	5	4	Yes	Analysis
13	JNW Club - Trinityhouse Randpark Ridge Open 2020 (A)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	2019 South African Junior Team Championships (U16A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
15	GJM vs GE Inter Region 2019 (U16A)	2019-10-05	2019-10-05	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
16	JNW Club - Helpmekaar Kollege Open 2019 (B)	2019-07-06	2019-07-06	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
17	JHB Metro Closed 2019 (U16)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
18	JNW Club - Charterhouse Open 2019 (B)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
19	2019 South African Junior Closed Chess Championship (U16 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	5	Yes	Analysis
20	JNW Club - Bryanston Open 1 2019 (B)	2019-01-26	2019-01-26	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
21	South African Junior Team Championships 2018 (U16A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
22	JNW Club - Helpmekaar Open 2018 (B)	2018-09-15	2018-09-15	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
23	JNW Club - Maragon Open 2018 (B)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
24	JHB Metro Junior Closed 2018 (U16)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	5	3	Yes	Analysis
25	JNW Club - Bryanston Open 2 2018 (B)	2018-05-05	2018-05-05	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
26	2018 Chris Greyling Open (B)	2018-04-21	2018-04-21	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
27	JNW Club - Linden Open 2018 (B)	2018-04-14	2018-04-14	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
28	The Outpost Chess Club Open 2018 (B)	2018-03-16	2018-03-17	Standard	Johannesburg Metro (GJM)	6	5	2	Yes	Analysis
29	JNW Club - Trinityhouse Randpark Ridge Open 2018 (B)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
30	JNW Club - Northriding College Open 2018 (A)	2018-03-09	2018-03-10	Standard	Johannesburg Metro (GJM)	6	6	1	Yes	Analysis
31	JNW Club - Trinityhouse Little Falls Open 2018 (C)	2018-02-16	2018-02-17	Standard	Johannesburg Metro (GJM)	6	5	3.5	Yes	Analysis
32	JNW Club - Bryanston Open 2018 (C)	2018-01-26	2018-01-27	Standard	Johannesburg Metro (GJM)	6	6	3	Yes	Analysis
33	South African Junior Team Championships 2017 (U14A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	5	3	Yes	Analysis

#	Games	Start				End
1	14	Tournament GJM vs GE Inter Region 2019				Tournament 2020 Piet Robbertse
		date 2019-10-05	rnd 4	type Standard	result 1	date 2020-02-02	rnd 5	type Standard	result 0.5
		Opponent Weideman, K (Kayleigh)				Opponent De Vries, MA (Andrio)
2	10	Tournament 2023 Tuks Open Chess Tournament				Tournament 2023 USSA Championships
		date 2023-10-07	rnd 5	type Standard	result 0.5	date 2023-12-08	rnd 9	type Standard	result 0.5
		Opponent Byneveldt, NC (Neil)				Opponent Kara, Z (Zahra)
3	8	Tournament JNW Club - Charterhouse Open 2019				Tournament JHB Metro Closed 2019
		date 2019-04-13	rnd 5	type Standard	result 0.5	date 2019-07-27	rnd 2	type Standard	result 1
		Opponent Pillay, M (Mikhael)				Opponent Smith, R (Reuben)

#	Games	Start				End
1	14	Tournament GJM vs GE Inter Region 2019				Tournament 2020 Piet Robbertse
		date 2019-10-05	rnd 4	type Standard	result 1	date 2020-02-02	rnd 5	type Standard	result 0.5
		Opponent Weideman, K (Kayleigh)				Opponent De Vries, MA (Andrio)
2	10	Tournament 2023 Tuks Open Chess Tournament				Tournament 2023 USSA Championships
		date 2023-10-07	rnd 5	type Standard	result 0.5	date 2023-12-08	rnd 9	type Standard	result 0.5
		Opponent Byneveldt, NC (Neil)				Opponent Kara, Z (Zahra)
3	8	Tournament JNW Club - Charterhouse Open 2019				Tournament JHB Metro Closed 2019
		date 2019-04-13	rnd 5	type Standard	result 0.5	date 2019-07-27	rnd 2	type Standard	result 1
		Opponent Pillay, M (Mikhael)				Opponent Smith, R (Reuben)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament South African Junior Closed Chess Championships 2022				Tournament South African Junior Closed Chess Championships 2022
		date 2022-03-30	rnd 6	type Standard	result 1	date 2022-04-02	rnd 11	type Standard	result 1
		Opponent Gardiner, N (Noa)				Opponent De Beer, J (Janka)
2	6	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2018				Tournament JNW Club - Linden Open 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-04-14	rnd 3	type Standard	result 1
		Opponent Botha, JF (Julian)				Opponent Maharaj, K (Kiashen)
3	5	Tournament 2021 African Youth Chess Championships				Tournament 2021 African Youth Chess Championships
		date 2021-09-19	rnd 2	type Standard	result 1	date 2021-09-23	rnd 7	type Standard	result 1
		Opponent Staal Micaela Francis				Opponent Ingado Mercy

#	Games	Start				End
1	6	Tournament South African Junior Closed Chess Championships 2022				Tournament South African Junior Closed Chess Championships 2022
		date 2022-03-30	rnd 6	type Standard	result 1	date 2022-04-02	rnd 11	type Standard	result 1
		Opponent Gardiner, N (Noa)				Opponent De Beer, J (Janka)
2	6	Tournament JNW Club - Trinityhouse Randpark Ridge Open 2018				Tournament JNW Club - Linden Open 2018
		date 2018-03-24	rnd 3	type Standard	result 1	date 2018-04-14	rnd 3	type Standard	result 1
		Opponent Botha, JF (Julian)				Opponent Maharaj, K (Kiashen)
3	5	Tournament 2021 African Youth Chess Championships				Tournament 2021 African Youth Chess Championships
		date 2021-09-19	rnd 2	type Standard	result 1	date 2021-09-23	rnd 7	type Standard	result 1
		Opponent Staal Micaela Francis				Opponent Ingado Mercy

No games found.

#	Games	Start				End

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	Wallace ,A (Amy)	5	4	255	5	4	255	0	0	0	0	0	0
1	Wallace ,A (Amy)	5	1323.5	1578.5	5	1320.6	1578.5	0	0	0	0	0	0
2	Potgieter ,E (Edward)	4	3	212.5	4	3	212.5	0	0	0	0	0	0
2	Potgieter ,E (Edward)	4	1226.2	1438.7	4	1224.5	1438.7	0	0	0	0	0	0
3	Pillay ,M (Mikhael)	4	2	0	4	2	0	0	0	0	0	0	0
3	Pillay ,M (Mikhael)	4	1356.6	1356.6	4	1373.2	1356.6	0	0	0	0	0	0
4	Weisz ,B (Benjamin)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
4	Weisz ,B (Benjamin)	3	1545	1261.7	3	1545.2	1261.7	0	0	0	0	0	0
5	Maepa ,B (Boitumelo)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
5	Maepa ,B (Boitumelo)	3	1342.4	1484.1	3	1346.8	1484.1	0	0	0	0	0	0
6	Van Jaarsveld ,H (Heinu)	3	3	425	3	3	425	0	0	0	0	0	0
6	Van Jaarsveld ,H (Heinu)	3	1127.3	1552.3	3	1131.8	1552.3	0	0	0	0	0	0
7	Gardiner ,N (Noa)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
7	Gardiner ,N (Noa)	3	1421.1	1421.1	3	1414.7	1421.1	0	0	0	0	0	0
8	Shaw ,LA (Laurie Ann)	2	1	0	2	1	0	0	0	0	0	0	0
8	Shaw ,LA (Laurie Ann)	2	1531.8	1531.8	2	1543.6	1531.8	0	0	0	0	0	0
9	Mundama ,CK (Celima Kapango)	2	2	425	2	2	425	0	0	0	0	0	0
9	Mundama ,CK (Celima Kapango)	2	1438.5	1863.5	2	1438.4	1863.5	0	0	0	0	0	0
10	Maharaj ,K (Kiashen)	2	2	425	2	2	425	0	0	0	0	0	0
10	Maharaj ,K (Kiashen)	2	1348.4	1773.4	2	1357.9	1773.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Van Jaarsveld, A (Anje)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms