Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pretorius, A (Arnold)

Chess SA id

1090110072

FIDE id

Date of birth

2009-03-23 (U18)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1037.9	1030.1	1200	1200
Raw rating	1037.9	1030.1	1200	1200
Weighted rating	1037.9	1030.1	1200	1200
Weighted performance	265.1	262.9	0	0
Floor	753.5	765.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	208.9	211.2	165.8	165.8
Highest rating	1478.8 2019-02-01	1481.9 2019-02-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1253.5 2019-03-01	1265.6 2019-03-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1253.5 2019-04-01	1265.6 2019-04-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1478.8 2019-02-01	1481.9 2019-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1037.9	1030.1	1200	1200
Analysis
Rating	1037.9	1030.1	1200	1200
Raw rating	1037.9	1030.1	1200	1200
Weighted rating	1037.9	1030.1	1200
Weighted performance	265.1	262.9	0
K-factor	36	36	36	36
Floor	753.5	765.6	700	700
Max/Min rating change allowed	208.9	211.2	165.8	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	1037.9	1030.1	1200	1200
New weighted rating	1037.9	1030.1	1200	1200
New weighted performance	259.1	256.9	0	0
Temp new rating	1037.9	1030.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1037.9	1030.1	1200	1200
New K-factor	36	36	36	36
New floor	753.5	765.6	700	700

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	40	40

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-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	40	14	35	-127.5	1140.1	1012.6
Standard	40	14	35	-127.5	1140.1	1012.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1037.9	1030.1	1200	1200
2025-09-30	1037.9	1030.1	1200	1200
2025-09-01	1037.9	1030.1	1200	1200
2025-08-01	1037.9	1030.1	1200	1200
2025-07-01	1037.9	1030.1	1200	1200
2025-06-01	1037.9	1030.1	1200	1200
2025-05-01	1037.9	1030.1	1200	1200
2025-04-01	1037.9	1030.1	1200	1200
2025-03-01	1037.9	1030.1	1200	1200
2025-02-01	1037.9	1030.1	1200	1200
2025-01-01	1037.9	1030.1	1200	1200
2024-12-01	1037.9	1030.1	1200	1200
2024-11-01	1037.9	1030.1	1200	1200
2024-10-01	1037.9	1030.1	1200	1200
2024-09-01	1037.9	1030.1	1200	1200
2024-08-01	1037.9	1030.1	1200	1200
2024-07-01	1037.9	1030.1	1200	1200
2024-09-01	1037.9	1030.1	1200	1200
2024-05-01	1037.9	1030.1	1200	1200
2024-04-01	1037.9	1030.1	1200	1200
2024-03-01	1037.9	1030.1	1200	1200
2024-02-01	1037.9	1030.1	1200	1200
2024-01-01	1037.9	1030.1	1200	1200
2023-12-01	1037.9	1030.1	1200	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	JNW Club - Trinityhouse Randpark Ridge Open 2020 (D)	2020-02-22	2020-02-22	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
2	2019 South African Junior Team Championships (U12D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	1	Yes	Analysis
3	Chessnuts Under 1350 Tournament 2019 (Pawns+Knights)	2019-08-24	2019-08-24	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
4	JNW Club - Helpmekaar Kollege Open 2019 (D)	2019-07-06	2019-07-06	Standard	Johannesburg Metro (GJM)	5	4	1	Yes	Analysis
5	JHB Metro Closed 2019 (U12)	2019-07-27	2019-07-28	Standard	Johannesburg Metro (GJM)	6	6	2	Yes	Analysis
6	JNW Club - Unika Scholar 2019 (Open)	2019-06-01	2019-06-01	Standard	Johannesburg Metro (GJM)	5	4	0	Yes	Analysis
7	JNW Club - Charterhouse Open 2019 (D)	2019-04-13	2019-04-13	Standard	Johannesburg Metro (GJM)	5	4	0.5	Yes	Analysis
8	JNW Club - Trinityhouse Little Falls Open 2019 (F)	2019-02-23	2019-02-23	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis

#	Games	Start				End
1	4	Tournament Chessnuts Under 1350 Tournament 2019				Tournament Chessnuts Under 1350 Tournament 2019
		date 2019-08-24	rnd 2	type Standard	result 1	date 2019-08-24	rnd 5	type Standard	result 1
		Opponent Ansley, T (Tristan)				Opponent Joubert, D (Daniel)
2	3	Tournament JNW Club - Trinityhouse Little Falls Open 2019				Tournament JNW Club - Trinityhouse Little Falls Open 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Hanekom, C (Chenita)				Opponent Mupalala, K (Kenzo)
3	2	Tournament JHB Metro Closed 2019				Tournament JHB Metro Closed 2019
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-07-27	rnd 3	type Standard	result 1
		Opponent Mazibuko, T (Thembani)				Opponent Mhambi, N (Nomsa)

#	Games	Start				End
1	4	Tournament Chessnuts Under 1350 Tournament 2019				Tournament Chessnuts Under 1350 Tournament 2019
		date 2019-08-24	rnd 2	type Standard	result 1	date 2019-08-24	rnd 5	type Standard	result 1
		Opponent Ansley, T (Tristan)				Opponent Joubert, D (Daniel)
2	3	Tournament JNW Club - Trinityhouse Little Falls Open 2019				Tournament JNW Club - Trinityhouse Little Falls Open 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Hanekom, C (Chenita)				Opponent Mupalala, K (Kenzo)
3	2	Tournament JHB Metro Closed 2019				Tournament JHB Metro Closed 2019
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-07-27	rnd 3	type Standard	result 1
		Opponent Mazibuko, T (Thembani)				Opponent Mhambi, N (Nomsa)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament JNW Club - Trinityhouse Little Falls Open 2019				Tournament JNW Club - Trinityhouse Little Falls Open 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Hanekom, C (Chenita)				Opponent Mupalala, K (Kenzo)
2	2	Tournament Chessnuts Under 1350 Tournament 2019				Tournament Chessnuts Under 1350 Tournament 2019
		date 2019-08-24	rnd 2	type Standard	result 1	date 2019-08-24	rnd 3	type Standard	result 1
		Opponent Ansley, T (Tristan)				Opponent Mcphail, M (Matthew)
3	2	Tournament JHB Metro Closed 2019				Tournament JHB Metro Closed 2019
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-07-27	rnd 3	type Standard	result 1
		Opponent Mazibuko, T (Thembani)				Opponent Mhambi, N (Nomsa)

#	Games	Start				End
1	3	Tournament JNW Club - Trinityhouse Little Falls Open 2019				Tournament JNW Club - Trinityhouse Little Falls Open 2019
		date 2019-02-23	rnd 1	type Standard	result 1	date 2019-02-23	rnd 3	type Standard	result 1
		Opponent Hanekom, C (Chenita)				Opponent Mupalala, K (Kenzo)
2	2	Tournament Chessnuts Under 1350 Tournament 2019				Tournament Chessnuts Under 1350 Tournament 2019
		date 2019-08-24	rnd 2	type Standard	result 1	date 2019-08-24	rnd 3	type Standard	result 1
		Opponent Ansley, T (Tristan)				Opponent Mcphail, M (Matthew)
3	2	Tournament JHB Metro Closed 2019				Tournament JHB Metro Closed 2019
		date 2019-07-27	rnd 2	type Standard	result 1	date 2019-07-27	rnd 3	type Standard	result 1
		Opponent Mazibuko, T (Thembani)				Opponent Mhambi, N (Nomsa)

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	Akula ,K (Kishan)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
1	Akula ,K (Kishan)	2	1111.9	1324.4	2	1094.4	1324.4	0	0	0	0	0	0
2	Fauconier ,A (Amber)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Fauconier ,A (Amber)	2	1185.6	760.6	2	1177.8	760.6	0	0	0	0	0	0
3	Muller ,J (Jonathan)	1	1	425	1	1	425	0	0	0	0	0	0
3	Muller ,J (Jonathan)	1	1222.9	1647.9	1	1230.4	1647.9	0	0	0	0	0	0
4	Hoek ,L (Lore)	1	1	425	1	1	425	0	0	0	0	0	0
4	Hoek ,L (Lore)	1	1212.9	1637.9	1	1215.2	1637.9	0	0	0	0	0	0
5	Danks ,S (Stuart)	1	1	425	1	1	425	0	0	0	0	0	0
5	Danks ,S (Stuart)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Yu ,E (Ethan)	1	1	425	1	1	425	0	0	0	0	0	0
6	Yu ,E (Ethan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Fritz ,J (Janez)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Fritz ,J (Janez)	1	1159.3	734.3	1	1147.8	734.3	0	0	0	0	0	0
8	Meyer ,J (Jared)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Meyer ,J (Jared)	1	1084.2	659.2	1	1077.1	659.2	0	0	0	0	0	0
9	Mcphail ,M (Matthew)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mcphail ,M (Matthew)	1	1087.3	1512.3	1	1082.4	1512.3	0	0	0	0	0	0
10	Machiwenyika ,C (Christian)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Machiwenyika ,C (Christian)	1	1200.2	1200.2	1	1197.3	1200.2	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

Pretorius, A (Arnold)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms