Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pretorius, A (Andrei)

Chess SA id

2090155403

FIDE id

Date of birth

2009-02-02 (U18)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1324.5	1312.4	1171.9	1200
Raw rating	1324.5	1312.4	1171.9	1200
Weighted rating	1322.5	1311.5	1169.4	1200
Weighted performance	1141.9	1147.5	0	0
Floor	832	819.8	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	138.9	141.3	172.6	165.8
Highest rating	1354.5 2024-03-01	1401.6 2024-03-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1332 2024-08-01	1319.8 2024-04-01	1200 2019-12-01	1200 2024-02-01
Highest weighted rating	1315.8 2025-08-01	1306.3 2025-08-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1354.5 2024-03-01	1401.6 2024-03-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0.1	0	0
New rating	1324.5	1312.6	1171.9	1200
Analysis
Rating	1324.5	1312.4	1171.9	1200
Raw rating	1324.5	1312.4	1171.9	1200
Weighted rating	1322.5	1311.5	1169.4
Weighted performance	1141.9	1147.5	0
K-factor	36	36	36	36
Floor	832	819.8	700	700
Max/Min rating change allowed	138.9	141.3	172.6	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	1324.5	1312.4	1171.9	1200
New weighted rating	1323.9	1312.6	1170	1200
New weighted performance	1134.1	1139.6	0	0
Temp new rating	1324.5	1312.6	1171.9	1200
Temp new rating +/-	0	0.1	0	0
Final new rating +/-	0	0.1	0	0
New rating	1324.5	1312.6	1171.9	1200
New K-factor	36	36	36	36
New floor	832	819.8	700	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	26	19	7
	15	5	10
	0	0	0
	0	0	0
History	46	29	17

Games since
	Main 36	Standard 24		Rapid 12		Blitz 0
Gender	Female
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
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	5	3	60	85	1224.5	1309.5
Standard	5	3	60	85	1224.5	1309.5
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	46	25.5	55.43	46.2	1270.6	1316.8
Standard	29	18.5	63.79	117.2	1242.1	1359.4
Rapid	17	7	41.18	-75	1319.2	1244.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1324.5	1312.4	1171.9	1200
2025-09-30	1324.5	1312.4	1171.9	1200
2025-09-01	1324.5	1312.4	1171.9	1200
2025-08-01	1324.5	1312.4	1171.9	1200
2025-07-01	1324.5	1312.4	1171.9	1200
2025-06-01	1324.5	1312.4	1171.9	1200
2025-05-01	1324.5	1312.4	1171.9	1200
2025-04-01	1324.5	1312.4	1171.9	1200
2025-03-01	1324.5	1312.4	1171.9	1200
2025-02-01	1329	1316.9	1171.9	1200
2025-01-01	1329	1316.9	1171.9	1200
2024-12-01	1329	1316.9	1171.9	1200
2024-11-01	1329	1316.9	1171.9	1200
2024-10-01	1329	1316.9	1171.9	1200
2024-09-01	1332	1319.8	1171.9	1200
2024-08-01	1332	1319.8	1171.9	1200
2024-07-01	1329.2	1319.8	1151.4	1200
2024-09-01	1329.2	1319.8	1151.4	1200
2024-05-01	1329.2	1319.8	1151.4	1200
2024-04-01	1329.2	1319.8	1151.4	1200
2024-03-01	1227.5	1242.8	1151.4	1200
2024-02-01	1195.2	1208.6	1151.4	1200
2024-01-01	1195.2	1208.6	1151.4	1200
2023-12-01	1195.2	1208.6	1151.4	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	Grey College Team Championship 2025 (B)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Grey College Team Championship 2025 (B)	2025-02-21	2025-02-22	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
2	Gauteng Schools Individuals Finals 2024 (U15 Girls)	2024-08-17	2024-08-17	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
3	JMC NG Weltevreden Church 2024	2024-06-29	2024-06-29	Rapid	Johannesburg Metro (GJM)	7	7	3	Yes	Analysis
4	1st Knights Open Tournament 2024 (C)	2024-03-23	2024-03-23	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
5	JNW Open - Classic - Crawford 2024 (C)	2024-03-09	2024-03-09	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
6	Grey College Team Championship 2024 (B)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	4	2.5	Yes	Analysis
7	Chess is My Lifestyle 2023 (High School Girls)	2023-12-09	2023-12-09	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
8	Gauteng Soncini Finals 2023 (Girls)	2023-10-28	2023-10-28	Rapid	Ekurhuleni (GE)	5	5	2	Yes	Analysis
9	Mzansi Spring Rapid 2023	2023-09-02	2023-09-02	Rapid	Johannesburg Metro (GJM)	7	0	0	No	Analysis
10	Gauteng Schools Individual Finals 2023 (U15 Girls)	2023-05-27	2023-05-27	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis

#	Games	Start				End
1	4	Tournament JNW Open - Classic - Crawford 2024				Tournament 1st Knights Open Tournament 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-23	rnd 1	type Standard	result 1
		Opponent Wu, O (Oscar)				Opponent Mlilo, S (Sibongisiwe)
2	3	Tournament JMC NG Weltevreden Church 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-06-29	rnd 7	type Rapid	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Ledwaba, T (Thoriso)				Opponent Brits, L (Line')
3	3	Tournament Grey College Team Championship 2024				Tournament Grey College Team Championship 2024
		date 2024-02-23	rnd 1	type Standard	result 0.5	date 2024-02-24	rnd 4	type Standard	result 1
		Opponent Coetzee, C (Conlinn)				Opponent Cooper, H (Hayden)

#	Games	Start				End
1	5	Tournament Gauteng Schools Individual Finals 2023				Tournament Grey College Team Championship 2024
		date 2023-05-27	rnd 4	type Standard	result 1	date 2024-02-24	rnd 4	type Standard	result 1
		Opponent Mashego, J (Jamile)				Opponent Cooper, H (Hayden)
2	4	Tournament JNW Open - Classic - Crawford 2024				Tournament 1st Knights Open Tournament 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-23	rnd 1	type Standard	result 1
		Opponent Wu, O (Oscar)				Opponent Mlilo, S (Sibongisiwe)
3	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Grey College Team Championship 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-21	rnd 1	type Standard	result 1
		Opponent Ntshangase, S (Samkelisiwe Monica)				Opponent Rizvi, A (Anam)

#	Games	Start				End
1	2	Tournament Gauteng Soncini Finals 2023				Tournament Gauteng Soncini Finals 2023
		date 2023-10-28	rnd 2	type Rapid	result 1	date 2023-10-28	rnd 3	type Rapid	result 1
		Opponent Karuppan, Z (Zebada)				Opponent Vilakazi, L (Lwandle)
2	1	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 7	type Rapid	result 1	date 2024-06-29	rnd 7	type Rapid	result 1
		Opponent Ledwaba, T (Thoriso)				Opponent Ledwaba, T (Thoriso)
3	1	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 4	type Rapid	result 1	date 2024-06-29	rnd 4	type Rapid	result 1
		Opponent Morgan, R (Raegan)				Opponent Morgan, R (Raegan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament JNW Open - Classic - Crawford 2024				Tournament 1st Knights Open Tournament 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-23	rnd 1	type Standard	result 1
		Opponent Wu, O (Oscar)				Opponent Mlilo, S (Sibongisiwe)
2	3	Tournament JMC NG Weltevreden Church 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-06-29	rnd 7	type Rapid	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Ledwaba, T (Thoriso)				Opponent Brits, L (Line')
3	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Grey College Team Championship 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-21	rnd 1	type Standard	result 1
		Opponent Ntshangase, S (Samkelisiwe Monica)				Opponent Rizvi, A (Anam)

#	Games	Start				End
1	4	Tournament JNW Open - Classic - Crawford 2024				Tournament 1st Knights Open Tournament 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-23	rnd 1	type Standard	result 1
		Opponent Wu, O (Oscar)				Opponent Mlilo, S (Sibongisiwe)
2	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Grey College Team Championship 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-21	rnd 1	type Standard	result 1
		Opponent Ntshangase, S (Samkelisiwe Monica)				Opponent Rizvi, A (Anam)
3	2	Tournament Gauteng Schools Individuals Finals 2024				Tournament Gauteng Schools Individuals Finals 2024
		date 2024-08-17	rnd 1	type Standard	result 1	date 2024-08-17	rnd 2	type Standard	result 1
		Opponent Fomene, M (Masego)				Opponent Brits, L (Line')

#	Games	Start				End
1	2	Tournament Gauteng Soncini Finals 2023				Tournament Gauteng Soncini Finals 2023
		date 2023-10-28	rnd 2	type Rapid	result 1	date 2023-10-28	rnd 3	type Rapid	result 1
		Opponent Karuppan, Z (Zebada)				Opponent Vilakazi, L (Lwandle)
2	1	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 7	type Rapid	result 1	date 2024-06-29	rnd 7	type Rapid	result 1
		Opponent Ledwaba, T (Thoriso)				Opponent Ledwaba, T (Thoriso)
3	1	Tournament JMC NG Weltevreden Church 2024				Tournament JMC NG Weltevreden Church 2024
		date 2024-06-29	rnd 4	type Rapid	result 1	date 2024-06-29	rnd 4	type Rapid	result 1
		Opponent Morgan, R (Raegan)				Opponent Morgan, R (Raegan)

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	Mzizi ,A (Ayanda)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Mzizi ,A (Ayanda)	1	1167.1	742.1	1	1160	742.1	0	0	0	0	0	0
2	Bissett ,C (Colin)	1	1	425	1	1	425	0	0	0	0	0	0
2	Bissett ,C (Colin)	1	1228.8	1653.8	1	1200	1653.8	0	0	0	0	0	0
3	Abrahams ,A (Amara)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Abrahams ,A (Amara)	1	1235.9	810.9	1	1211.9	810.9	0	0	0	0	0	0
4	Kingon ,J (Jonah)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Kingon ,J (Jonah)	1	1351.6	926.6	1	1390.3	926.6	0	0	0	0	0	0
5	Brits ,L (Line')	1	1	425	1	1	425	0	0	0	0	0	0
5	Brits ,L (Line')	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Chadalavada ,B (Bhaarghavarama)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Chadalavada ,B (Bhaarghavarama)	1	1316.6	891.6	1	1313.7	891.6	0	0	0	0	0	0
7	Coetzee ,C (Conlinn)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Coetzee ,C (Conlinn)	1	1320.8	1320.8	1	1288.2	1320.8	0	0	0	0	0	0
8	Mtshweni ,L (Lungelo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Mtshweni ,L (Lungelo)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Cooper ,H (Hayden)	1	1	425	1	1	425	0	0	0	0	0	0
9	Cooper ,H (Hayden)	1	1319.5	1744.5	1	1316	1744.5	0	0	0	0	0	0
10	Ntuli ,H (Hlengiwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Ntuli ,H (Hlengiwe)	1	1183.4	758.4	1	1177.2	758.4	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Pretorius, A (Andrei)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms