Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, A (Anri)

Chess SA id

206006788

FIDE id

Date of birth

2006-08-15 (U20)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-09-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1633.2	1640.1	1377.7	1386
Raw rating	1633.2	1640.1	1377.7	1386
Weighted rating	1632.7	1639.4	1377.7	1386
Weighted performance	489.8	489.4	0	0
Floor	1133.2	1140.1	886	886
K-factor	28	28	36	36
Min/Max rating change allowed	89.5	88.6	128.7	127.2
Highest rating	1633.2 2024-02-01	1640.1 2024-02-01	1386 2018-01-01	1386 2019-01-01
Highest raw rating	1633.2 2024-02-01	1640.1 2024-02-01	1386 2018-01-01	1386 2024-02-01
Highest weighted rating	1631.4 2025-08-01	1637.9 2025-08-01	1386 2018-01-01	1386 2019-01-01
Highest weighted performance	1595.2 2020-01-01	1594.4 2020-01-01	1279.7 2018-05-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1633.2	1640.1	1377.7	1386
Analysis
Rating	1633.2	1640.1	1377.7	1386
Raw rating	1633.2	1640.1	1377.7	1386
Weighted rating	1632.7	1639.4	1377.7
Weighted performance	489.8	489.4	0
K-factor	28	28	36	36
Floor	1133.2	1140.1	886	886
Max/Min rating change allowed	89.5	88.6	128.7	127.2
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	1633.2	1640.1	1377.7	1386
New weighted rating	1633	1639.9	1377.7	1386
New weighted performance	489.3	488.8	0	0
Temp new rating	1633.2	1640.1	1377.7	1386
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1633.2	1640.1	1377.7	1386
New K-factor	28	28	36	36
New floor	1133.2	1140.1	886	886

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	578	556	15	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	U20
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	157	112.5	71.66	184.1	1294.4	1478.4
Standard	147	104.5	71.09	179.3	1304.2	1483.5
Rapid	10	8	80	255	1149.8	1404.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1633.2	1640.1	1377.7	1386
2025-09-01	1633.2	1640.1	1377.7	1386
2025-08-01	1633.2	1640.1	1377.7	1386
2025-07-01	1633.2	1640.1	1377.7	1386
2025-06-01	1633.2	1640.1	1377.7	1386
2025-05-01	1633.2	1640.1	1377.7	1386
2025-04-01	1633.2	1640.1	1377.7	1386
2025-03-01	1633.2	1640.1	1377.7	1386
2025-02-01	1633.2	1640.1	1377.7	1386
2025-01-01	1633.2	1640.1	1377.7	1386
2024-12-01	1633.2	1640.1	1377.7	1386
2024-11-01	1633.2	1640.1	1377.7	1386
2024-10-01	1633.2	1640.1	1377.7	1386
2024-09-01	1633.2	1640.1	1377.7	1386
2024-08-01	1633.2	1640.1	1377.7	1386
2024-07-01	1633.2	1640.1	1377.7	1386
2024-06-01	1633.2	1640.1	1377.7	1386
2024-08-01	1633.2	1640.1	1377.7	1386
2024-04-01	1633.2	1640.1	1377.7	1386
2024-03-01	1633.2	1640.1	1377.7	1386
2024-02-01	1633.2	1640.1	1377.7	1386
2024-01-01	1633.2	1640.1	1377.7	1386
2023-12-01	1578.3	1573.1	1377.7	1386
2023-11-01	1578.3	1573.1	1377.7	1386

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	DKKD Covid 19 2020 (A)	2020-09-19	2020-09-19	Standard	Dr Kenneth Kaunda (NWP)	5	5	3.5	Yes	Analysis
2	2020 Piet Robbertse (A)	2020-01-31	2020-02-02	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
3	2020 Blou Bul (A)	2020-02-15	2020-02-15	Standard	Tshwane (GTP)	5	4	0.5	Yes	Analysis
4	2019 South African Junior Team Championships (U14A Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
5	2019 Etienne Lewis Trials (U14 Girls)	2019-08-30	2019-09-01	Standard	Tshwane (GTP)	7	7	6.5	Yes	Analysis
6	2019 Alekhine Open (A)	2019-08-09	2019-08-10	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
7	2019 D4 Tshwane South Schools League Team Finals (U13)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	4	3.5	Yes	Analysis
8	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	4	Yes	Analysis
9	2019 Lubowski Open Tournament (A)	2019-05-11	2019-05-12	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
10	2019 Capablanca Chess Festival (Swiss A)	2019-04-19	2019-04-21	Standard	Tshwane (GTP)	7	7	3.5	Yes	Analysis
11	2019 Waterkloof Open (A)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
12	2019 South African Junior Closed Chess Championship (U14 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	6	Yes	Analysis
13	2019 Piet Robbertse (A)	2019-02-01	2019-02-03	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis
14	2019 Tshwane Chess Registration Tournament (A)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
15	South African Junior Team Championships 2018 (U14A Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	7	Yes	Analysis
16	2018 Gauteng North Open (A)	2018-10-20	2018-10-21	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
17	2018 Etienne Lewis Trials (U14 Girls)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	7	Yes	Analysis
18	2018 D4 Tshwane South Schools League Finals (U13)	2018-08-03	2018-08-03	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
19	2018 Menlo Open Chess Tournament (B)	2018-07-21	2018-07-21	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
20	2018 Swartkop Open (B)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
21	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	4	Yes	Analysis
22	2018 Gauteng Secondary Schools Individual Chess Championships (U13 Girls)	2018-05-25	2018-05-25	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
23	2018 South African Junior Closed Chess Championships (U12 Girls)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	9	Yes	Analysis
24	2018 Waterkloof Open (B)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
25	2018 D4 Tshwane North Individual Chess Championships (U13 Girls)	2018-03-10	2018-03-10	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
26	2018 Constantia Park Open (B)	2018-02-10	2018-02-10	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
27	2018 Tshwane Registration Open Chess Tournament (B)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
28	South African Junior Team Championships 2017 (U12 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	7	Yes	Analysis

#	Games	Start				End
1	16	Tournament 2018 Waterkloof Open				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-03-03	rnd 1	type Standard	result 0.5	date 2018-04-04	rnd 6	type Standard	result 1
		Opponent Saayman, A (Anais)				Opponent Schoeman, S (Sane)
2	14	Tournament 2019 Etienne Lewis Trials				Tournament 2019 South African Junior Team Championships
		date 2019-08-30	rnd 1	type Standard	result 0.5	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Reyneke, M (Melindie)				Opponent Jonker, DE (Danica)
3	14	Tournament 2018 Menlo Open Chess Tournament				Tournament 2018 Etienne Lewis Trials
		date 2018-07-21	rnd 4	type Standard	result 0.5	date 2018-09-02	rnd 7	type Standard	result 1
		Opponent Fourie, B (Brandon)				Opponent Claassen, G (Gabriella)

#	Games	Start				End
1	16	Tournament 2018 Waterkloof Open				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-03-03	rnd 1	type Standard	result 0.5	date 2018-04-04	rnd 6	type Standard	result 1
		Opponent Saayman, A (Anais)				Opponent Schoeman, S (Sane)
2	14	Tournament 2019 Etienne Lewis Trials				Tournament 2019 South African Junior Team Championships
		date 2019-08-30	rnd 1	type Standard	result 0.5	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Reyneke, M (Melindie)				Opponent Jonker, DE (Danica)
3	14	Tournament 2018 Menlo Open Chess Tournament				Tournament 2018 Etienne Lewis Trials
		date 2018-07-21	rnd 4	type Standard	result 0.5	date 2018-09-02	rnd 7	type Standard	result 1
		Opponent Fourie, B (Brandon)				Opponent Claassen, G (Gabriella)

#	Games	Start				End
1	3	Tournament 2018 Super 12				Tournament 2019 Super 12 Laerskole
		date 2018-05-05	rnd 5	type Rapid	result 1	date 2019-05-04	rnd 2	type Rapid	result 1
		Opponent Delport, B (Ben)				Opponent Stoltz, R (Raymond)
2	3	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Van Den Bergh, M (Marilene)				Opponent Odendaal, MM (Mikhal)
3	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 Stadler, AR (Andrio Roland)				Opponent Visagie, M (Mondre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	13	Tournament 2019 Etienne Lewis Trials				Tournament 2019 South African Junior Team Championships
		date 2019-08-30	rnd 2	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Odendaal, Z (Zandri)				Opponent Jonker, DE (Danica)
2	12	Tournament 2018 D4 Tshwane South Schools League Finals				Tournament 2018 Etienne Lewis Trials
		date 2018-08-03	rnd 1	type Standard	result 1	date 2018-09-02	rnd 7	type Standard	result 1
		Opponent Van Wyk, W (Wehan)				Opponent Claassen, G (Gabriella)
3	12	Tournament 2018 Waterkloof Open				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-03-04	rnd 5	type Standard	result 1	date 2018-04-04	rnd 6	type Standard	result 1
		Opponent Govender, S (Shevern)				Opponent Schoeman, S (Sane)

#	Games	Start				End
1	13	Tournament 2019 Etienne Lewis Trials				Tournament 2019 South African Junior Team Championships
		date 2019-08-30	rnd 2	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Odendaal, Z (Zandri)				Opponent Jonker, DE (Danica)
2	12	Tournament 2018 D4 Tshwane South Schools League Finals				Tournament 2018 Etienne Lewis Trials
		date 2018-08-03	rnd 1	type Standard	result 1	date 2018-09-02	rnd 7	type Standard	result 1
		Opponent Van Wyk, W (Wehan)				Opponent Claassen, G (Gabriella)
3	12	Tournament 2018 Waterkloof Open				Tournament 2018 South African Junior Closed Chess Championships
		date 2018-03-04	rnd 5	type Standard	result 1	date 2018-04-04	rnd 6	type Standard	result 1
		Opponent Govender, S (Shevern)				Opponent Schoeman, S (Sane)

#	Games	Start				End
1	3	Tournament 2018 Super 12				Tournament 2019 Super 12 Laerskole
		date 2018-05-05	rnd 5	type Rapid	result 1	date 2019-05-04	rnd 2	type Rapid	result 1
		Opponent Delport, B (Ben)				Opponent Stoltz, R (Raymond)
2	3	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 1	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Van Den Bergh, M (Marilene)				Opponent Odendaal, MM (Mikhal)
3	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 Stadler, AR (Andrio Roland)				Opponent Visagie, M (Mondre)

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	Govender ,S (Shevern)	4	2	0	4	2	0	0	0	0	0	0	0
1	Govender ,S (Shevern)	4	1432.6	1432.6	4	1417.4	1432.6	0	0	0	0	0	0
2	Fourie ,B (Brandon)	4	0.5	-318.8	4	0.5	-318.8	0	0	0	0	0	0
2	Fourie ,B (Brandon)	4	1622	1303.3	4	1634.2	1303.3	0	0	0	0	0	0
3	Ismail ,I (Imaan)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
3	Ismail ,I (Imaan)	3	1268	1551.3	3	1271.3	1551.3	0	0	0	0	0	0
4	Nguyen ,MT (Minh Thien)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
4	Nguyen ,MT (Minh Thien)	3	1285.5	1568.8	3	1289.5	1568.8	0	0	0	0	0	0
5	Prinsloo ,TE (Thiana Eurika)	3	3	425	3	3	425	0	0	0	0	0	0
5	Prinsloo ,TE (Thiana Eurika)	3	1165.8	1590.8	3	1163.1	1590.8	0	0	0	0	0	0
6	Bent ,C (Cierra)	3	3	425	3	3	425	0	0	0	0	0	0
6	Bent ,C (Cierra)	3	1164.4	1589.4	3	1170.1	1589.4	0	0	0	0	0	0
7	De Beer ,MA (Mignonne)	2	2	425	2	2	425	0	0	0	0	0	0
7	De Beer ,MA (Mignonne)	2	1036.8	1461.8	2	1033.9	1461.8	0	0	0	0	0	0
8	Le Roux ,C (Claire)	2	2	425	2	2	425	0	0	0	0	0	0
8	Le Roux ,C (Claire)	2	993.5	1418.4	2	993.4	1418.4	0	0	0	0	0	0
9	Richter ,J-M (Jan-Michael)	2	1	0	2	1	0	0	0	0	0	0	0
9	Richter ,J-M (Jan-Michael)	2	1667.8	1667.8	2	1665.7	1667.8	0	0	0	0	0	0
10	Claassen ,J (Jean-Daniel)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
10	Claassen ,J (Jean-Daniel)	2	1652.8	1865.3	2	1656.6	1865.3	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

De Villiers, A (Anri)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms