Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, A (Anthonie)

Chess SA id

110086679

FIDE id

Date of birth

2010-07-16 (U16)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-08-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1286	1252.2	1289.2	1200
Raw rating	1286	1252.2	1289.2	1200
Weighted rating	1286	1252.2	1289.2	1200
Weighted performance	935.2	805.5	0	0
Floor	788.1	752.2	789.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	146.7	153.9	146	165.8
Highest rating	1296.1 2023-08-01	1252.2 2024-02-01	1289.2 2024-02-01	1200 2018-10-01
Highest raw rating	1288.1 2023-04-01	1252.2 2024-02-01	1289.2 2024-02-01	1200 2024-02-01
Highest weighted rating	1288.1 2025-07-01	1252.2 2025-07-01	1289.2 2025-02-01	1200 2018-10-01
Highest weighted performance	1296.1 2023-08-01	1200 2018-02-01	1248.7 2023-03-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1286	1252.2	1289.2	1200
Analysis
Rating	1286	1252.2	1289.2	1200
Raw rating	1286	1252.2	1289.2	1200
Weighted rating	1286	1252.2	1289.2
Weighted performance	935.2	805.5	0
K-factor	36	36	36	36
Floor	788.1	752.2	789.2	700
Max/Min rating change allowed	146.7	153.9	146	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	1286	1252.2	1289.2	1200
New weighted rating	1286	1252.2	1289.2	1200
New weighted performance	934.7	805	0	0
Temp new rating	1286	1252.2	1289.2	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1286	1252.2	1289.2	1200
New K-factor	36	36	36	36
New floor	788.1	752.2	789.2	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	27	16	11
	0	0	0
	0	0	0
History	81	54	27

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	67	39	58.21	69.8	1172.2	1241.9
Standard	50	27	54	34	1173.4	1207.4
Rapid	17	12	70.59	175	1168.6	1343.6
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1286	1252.2	1289.2	1200
2025-09-01	1286	1252.2	1289.2	1200
2025-08-01	1286	1252.2	1289.2	1200
2025-07-01	1286	1252.2	1289.2	1200
2025-06-01	1286	1252.2	1289.2	1200
2025-05-01	1286	1252.2	1289.2	1200
2025-04-01	1286	1252.2	1289.2	1200
2025-03-01	1286	1252.2	1289.2	1200
2025-02-01	1286	1252.2	1289.2	1200
2025-01-01	1286	1252.2	1289.2	1200
2024-12-01	1286	1252.2	1289.2	1200
2024-11-01	1286	1252.2	1289.2	1200
2024-10-01	1286	1252.2	1289.2	1200
2024-09-01	1286	1252.2	1289.2	1200
2024-08-01	1286	1252.2	1289.2	1200
2024-07-01	1286	1252.2	1289.2	1200
2024-06-01	1286	1252.2	1289.2	1200
2024-08-01	1286	1252.2	1289.2	1200
2024-04-01	1286	1252.2	1289.2	1200
2024-03-01	1286	1252.2	1289.2	1200
2024-02-01	1286	1252.2	1289.2	1200
2024-01-01	1286	1252.2	1289.2	1200
2023-12-01	1286	1252.2	1289.2	1200
2023-11-01	1286	1252.2	1289.2	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	Overberg Top Schools 2023 (U13)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
2	Western Cape PS Individuals 2023 (U13 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
3	Overberg School Chess Closed Tournament 2023 (U13 Boys)	2023-03-25	2023-03-25	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
4	Overberg Schools Bredasdorp Zone Trails 2023 (U13)	2023-02-16	2023-03-02	Rapid	Overberg (WOS)	6	6	6	Yes	Analysis
5	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
6	Overberg Closed 2020 (U11 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
7	Western Cape Schools Individuals 2019 (U9 Boys)	2019-05-18	2019-05-19	Standard	Eden (WEG)	6	6	2.5	Yes	Analysis
8	Overberg School Chess Close Champs 2019 (U9 Boys)	2019-03-08	2019-03-09	Standard	Overberg (WOS)	6	6	5	Yes	Analysis
9	VRT Pitt Open 2018 (U10)	2018-06-02	2018-06-02	Rapid	Overberg (WOS)	6	6	3	Yes	Analysis
10	Overberg 2nd Trial 2018 (U10)	2018-05-05	2018-05-05	Standard	Overberg (WOS)	5	5	4	Yes	Analysis
11	Western Cape Schools Individuals 2018 (U9 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	6	2	Yes	Analysis
12	Overberg Schools Closed 2018 (U9 Boys)	2018-03-23	2018-03-24	Standard	Overberg (WOS)	6	6	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament Overberg Schools Bredasdorp Zone Trails 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Oliver, J (Joagen)				Opponent Kies, J (Jayde)
2	5	Tournament Overberg 2nd Trial 2018				Tournament Overberg 2nd Trial 2018
		date 2018-05-05	rnd 1	type Standard	result 1	date 2018-05-05	rnd 5	type Standard	result 1
		Opponent Bekker, A (Armin)				Opponent Mackenzie, T (Tayden)
3	4	Tournament Overberg School Chess Close Champs 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-03-08	rnd 6	type Standard	result 1	date 2019-05-18	rnd 3	type Standard	result 1
		Opponent Da Silva, M (Miguel)				Opponent Booysen, L (Lukas)

#	Games	Start				End
1	5	Tournament Overberg 2nd Trial 2018				Tournament Overberg 2nd Trial 2018
		date 2018-05-05	rnd 1	type Standard	result 1	date 2018-05-05	rnd 5	type Standard	result 1
		Opponent Bekker, A (Armin)				Opponent Mackenzie, T (Tayden)
2	4	Tournament Overberg School Chess Close Champs 2019				Tournament Western Cape Schools Individuals 2019
		date 2019-03-08	rnd 6	type Standard	result 1	date 2019-05-18	rnd 3	type Standard	result 1
		Opponent Da Silva, M (Miguel)				Opponent Booysen, L (Lukas)
3	4	Tournament Overberg School Chess Close Champs 2019				Tournament Overberg School Chess Close Champs 2019
		date 2019-03-08	rnd 1	type Standard	result 1	date 2019-03-08	rnd 4	type Standard	result 1
		Opponent Els, D (Dante)				Opponent Witbooi, C (Caleb)

#	Games	Start				End
1	6	Tournament Overberg Schools Bredasdorp Zone Trails 2023				Tournament Overberg Schools Bredasdorp Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-03-02	rnd 6	type Rapid	result 1
		Opponent Oliver, J (Joagen)				Opponent Adendorff, C (Caradene)
2	3	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Monaghan, X (Xander)				Opponent Badenhorst, G (Gabrielle)
3	2	Tournament VRT Pitt Open 2018				Tournament VRT Pitt Open 2018
		date 2018-06-02	rnd 4	type Rapid	result 1	date 2018-06-02	rnd 5	type Rapid	result 1
		Opponent Jagers, J (John-Lee)				Opponent Carelsen, C (Colan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Overberg Schools Bredasdorp Zone Trails 2023				Tournament Overberg School Chess Closed Tournament 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-03-25	rnd 1	type Standard	result 1
		Opponent Oliver, J (Joagen)				Opponent Kies, J (Jayde)
2	4	Tournament Overberg School Chess Close Champs 2019				Tournament Overberg School Chess Close Champs 2019
		date 2019-03-08	rnd 1	type Standard	result 1	date 2019-03-08	rnd 4	type Standard	result 1
		Opponent Els, D (Dante)				Opponent Witbooi, C (Caleb)
3	3	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Monaghan, X (Xander)				Opponent Badenhorst, G (Gabrielle)

#	Games	Start				End
1	4	Tournament Overberg School Chess Close Champs 2019				Tournament Overberg School Chess Close Champs 2019
		date 2019-03-08	rnd 1	type Standard	result 1	date 2019-03-08	rnd 4	type Standard	result 1
		Opponent Els, D (Dante)				Opponent Witbooi, C (Caleb)
2	3	Tournament Overberg Schools Closed 2018				Tournament Overberg Schools Closed 2018
		date 2018-03-23	rnd 2	type Standard	result 1	date 2018-03-24	rnd 4	type Standard	result 1
		Opponent Andries, L (Liam)				Opponent Swart, A (Arnold)
3	2	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 3	type Standard	result 1	date 2023-08-05	rnd 4	type Standard	result 1
		Opponent Nel, A (Anika)				Opponent Du Plessis, J (Jan-Dawid)

#	Games	Start				End
1	6	Tournament Overberg Schools Bredasdorp Zone Trails 2023				Tournament Overberg Schools Bredasdorp Zone Trails 2023
		date 2023-02-16	rnd 1	type Rapid	result 1	date 2023-03-02	rnd 6	type Rapid	result 1
		Opponent Oliver, J (Joagen)				Opponent Adendorff, C (Caradene)
2	3	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Schools Open Tournament 2023
		date 2023-02-11	rnd 1	type Rapid	result 1	date 2023-02-11	rnd 3	type Rapid	result 1
		Opponent Monaghan, X (Xander)				Opponent Badenhorst, G (Gabrielle)
3	2	Tournament VRT Pitt Open 2018				Tournament VRT Pitt Open 2018
		date 2018-06-02	rnd 4	type Rapid	result 1	date 2018-06-02	rnd 5	type Rapid	result 1
		Opponent Jagers, J (John-Lee)				Opponent Carelsen, C (Colan)

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	Mackenzie ,T (Tayden)	4	1	-212.5	3	1	-141.7	1	0	-425	0	0	0
1	Mackenzie ,T (Tayden)	4	1266	1053.5	3	1322.4	1124.3	1	1200	841	0	0	0
2	Valentine ,L (Luke)	3	0	-425	2	0	-425	1	0	-425	0	0	0
2	Valentine ,L (Luke)	3	1304.6	879.6	2	1176.9	879.6	1	1371.3	879.6	0	0	0
3	Muller ,C (Christiaan)	3	0	-425	1	0	-425	2	0	-425	0	0	0
3	Muller ,C (Christiaan)	3	968.9	543.9	1	555.4	543.9	2	890.5	543.9	0	0	0
4	Bekker ,A (Armin)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
4	Bekker ,A (Armin)	2	1187.2	1399.8	2	1180	1399.8	0	0	0	0	0	0
5	Da Silva ,M (Miguel)	2	1	0	2	1	0	0	0	0	0	0	0
5	Da Silva ,M (Miguel)	2	1146.9	1146.9	2	1133.6	1146.9	0	0	0	0	0	0
6	Du Plessis ,J (Jan-Dawid)	2	2	425	2	2	425	0	0	0	0	0	0
6	Du Plessis ,J (Jan-Dawid)	2	1290.8	1715.8	2	1247.1	1715.8	0	0	0	0	0	0
7	Brink ,S (Samantha)	2	0.5	-212.5	1	0.5	0	1	0	-425	0	0	0
7	Brink ,S (Samantha)	2	1118.1	905.6	1	885.2	1118.1	1	831.6	693.1	0	0	0
8	Carelsen ,C (Colan)	2	2	425	0	0	0	2	2	425	0	0	0
8	Carelsen ,C (Colan)	2	1117.2	1542.2	0	0	0	2	1177.6	1542.2	0	0	0
9	Duminy ,M (Marc)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Duminy ,M (Marc)	1	789.8	364.8	1	789.8	364.8	0	0	0	0	0	0
10	Witbooi ,C (Caleb)	1	1	425	1	1	425	0	0	0	0	0	0
10	Witbooi ,C (Caleb)	1	663.9	1088.9	1	668.2	1088.9	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

Botha, A (Anthonie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms