Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, J (Johan)

Chess SA id

187003026

FIDE id

Date of birth

1987-04-08 (Adult)

Gender

Male

Region

Sedibeng (GSV)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-09-06

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1505.4	1510.9	1515	1515
Raw rating	1505.4	1510.9	1515	1515
Weighted rating	1505.4	1510.9	1514.8	1514.8
Weighted performance	0	0	0	0
Floor	1005.4	1010.9	1015	1015
K-factor	32	32	32	32
Min/Max rating change allowed	107.3	106.5	105.9	105.9
Highest rating	1505.4 2024-02-01	1510.9 2024-02-01	1515 2024-02-01	1515 2024-02-01
Highest raw rating	1505.4 2024-02-01	1510.9 2024-02-01	1515 2024-02-01	1515 2024-02-01
Highest weighted rating	1505.4 2025-08-01	1510.9 2025-08-01	1514.4 2025-08-01	1514.4 2025-08-01
Highest weighted performance	1404 2023-09-01	1400.5 2023-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1505.4	1510.9	1515	1515
Analysis
Rating	1505.4	1510.9	1515	1515
Raw rating	1505.4	1510.9	1515	1515
Weighted rating	1505.4	1510.9	1514.8
Weighted performance	0	0	0
K-factor	32	32	32	32
Floor	1005.4	1010.9	1015	1015
Max/Min rating change allowed	107.3	106.5	105.9	105.9
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	1505.4	1510.9	1515	1515
New weighted rating	1505.4	1510.9	1514.9	1514.9
New weighted performance	0	0	0	0
Temp new rating	1505.4	1510.9	1515	1515
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1505.4	1510.9	1515	1515
New K-factor	32	32	32	32
New floor	1005.4	1010.9	1015	1015

Item	Main	Standard
	0	0
	0	0
	0	0
	11	11
	0	0
	0	0
History	72	72

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Sedibeng (GSV)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	16	9.5	59.38	79.7	1433.7	1513.4
Standard	16	9.5	59.38	79.7	1433.7	1513.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1505.4	1510.9	1515	1515
2025-09-01	1505.4	1510.9	1515	1515
2025-08-01	1505.4	1510.9	1515	1515
2025-07-01	1505.4	1510.9	1515	1515
2025-06-01	1505.4	1510.9	1515	1515
2025-05-01	1505.4	1510.9	1515	1515
2025-04-01	1505.4	1510.9	1515	1515
2025-03-01	1505.4	1510.9	1515	1515
2025-02-01	1505.4	1510.9	1515	1515
2025-01-01	1505.4	1510.9	1515	1515
2024-12-01	1505.4	1510.9	1515	1515
2024-11-01	1505.4	1510.9	1515	1515
2024-10-01	1505.4	1510.9	1515	1515
2024-09-01	1505.4	1510.9	1515	1515
2024-08-01	1505.4	1510.9	1515	1515
2024-07-01	1505.4	1510.9	1515	1515
2024-06-01	1505.4	1510.9	1515	1515
2024-08-01	1505.4	1510.9	1515	1515
2024-04-01	1505.4	1510.9	1515	1515
2024-03-01	1505.4	1510.9	1515	1515
2024-02-01	1505.4	1510.9	1515	1515
2024-01-01	1505.4	1510.9	1515	1515
2023-12-01	1505.4	1510.9	1495.8	1495.8
2023-11-01	1505.4	1510.9	1495.8	1495.8

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	2023 Centurion Club Championships	2023-07-19	2023-09-06	Standard	Tshwane (GTP)	6	6	4	Yes	Analysis
2	2023 Milos Ristic Open Tournament (B)	2023-04-27	2023-04-27	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
3	2018 Alekhine Open (A)	2018-08-09	2018-08-11	Standard	Tshwane (GTP)	6	5	1	Yes	Analysis

#	Games	Start				End
1	9	Tournament 2018 Alekhine Open				Tournament 2023 Centurion Club Championships
		date 2018-08-11	rnd 6	type Standard	result 1	date 2023-08-02	rnd 3	type Standard	result 1
		Opponent Booysen, W (Wim)				Opponent Darby, AGP (Arthur)
2	1	Tournament 2023 Centurion Club Championships				Tournament 2023 Centurion Club Championships
		date 2023-09-06	rnd 6	type Standard	result 1	date 2023-09-06	rnd 6	type Standard	result 1
		Opponent Ballim, S (Salif)				Opponent Ballim, S (Salif)

#	Games	Start				End
1	9	Tournament 2018 Alekhine Open				Tournament 2023 Centurion Club Championships
		date 2018-08-11	rnd 6	type Standard	result 1	date 2023-08-02	rnd 3	type Standard	result 1
		Opponent Booysen, W (Wim)				Opponent Darby, AGP (Arthur)
2	1	Tournament 2023 Centurion Club Championships				Tournament 2023 Centurion Club Championships
		date 2023-09-06	rnd 6	type Standard	result 1	date 2023-09-06	rnd 6	type Standard	result 1
		Opponent Ballim, S (Salif)				Opponent Ballim, S (Salif)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament 2018 Alekhine Open				Tournament 2023 Milos Ristic Open Tournament
		date 2018-08-11	rnd 6	type Standard	result 1	date 2023-04-27	rnd 4	type Standard	result 1
		Opponent Booysen, W (Wim)				Opponent Phokela, O (Osia)
2	3	Tournament 2023 Centurion Club Championships				Tournament 2023 Centurion Club Championships
		date 2023-07-19	rnd 1	type Standard	result 1	date 2023-08-02	rnd 3	type Standard	result 1
		Opponent Mailula, D (Donald)				Opponent Darby, AGP (Arthur)
3	1	Tournament 2023 Centurion Club Championships				Tournament 2023 Centurion Club Championships
		date 2023-09-06	rnd 6	type Standard	result 1	date 2023-09-06	rnd 6	type Standard	result 1
		Opponent Ballim, S (Salif)				Opponent Ballim, S (Salif)

#	Games	Start				End
1	5	Tournament 2018 Alekhine Open				Tournament 2023 Milos Ristic Open Tournament
		date 2018-08-11	rnd 6	type Standard	result 1	date 2023-04-27	rnd 4	type Standard	result 1
		Opponent Booysen, W (Wim)				Opponent Phokela, O (Osia)
2	3	Tournament 2023 Centurion Club Championships				Tournament 2023 Centurion Club Championships
		date 2023-07-19	rnd 1	type Standard	result 1	date 2023-08-02	rnd 3	type Standard	result 1
		Opponent Mailula, D (Donald)				Opponent Darby, AGP (Arthur)
3	1	Tournament 2023 Centurion Club Championships				Tournament 2023 Centurion Club Championships
		date 2023-09-06	rnd 6	type Standard	result 1	date 2023-09-06	rnd 6	type Standard	result 1
		Opponent Ballim, S (Salif)				Opponent Ballim, S (Salif)

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	Darby ,AGP (Arthur)	1	1	425	1	1	425	0	0	0	0	0	0
1	Darby ,AGP (Arthur)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Van Staden ,R (Rikus)	1	1	425	1	1	425	0	0	0	0	0	0
2	Van Staden ,R (Rikus)	1	1303.4	1728.4	1	1274.4	1728.4	0	0	0	0	0	0
3	De Wet ,R (Ryan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	De Wet ,R (Ryan)	1	1433.7	1008.7	1	1433.7	1008.7	0	0	0	0	0	0
4	Nene ,TH (Themba Hope)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Nene ,TH (Themba Hope)	1	1869.6	1444.6	1	1866.1	1444.6	0	0	0	0	0	0
5	Jacobs ,CN (Calvin Nicholas)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Jacobs ,CN (Calvin Nicholas)	1	1695.2	1270.2	1	1711.7	1270.2	0	0	0	0	0	0
6	Phokela ,O (Osia)	1	1	425	1	1	425	0	0	0	0	0	0
6	Phokela ,O (Osia)	1	1522.4	1947.4	1	1517.1	1947.4	0	0	0	0	0	0
7	Mailula ,D (Donald)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mailula ,D (Donald)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Malatji ,LM (Lackson Mathake)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Malatji ,LM (Lackson Mathake)	1	1703.7	1278.7	1	1710	1278.7	0	0	0	0	0	0
9	Nieuwoudt ,H (Hanno)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Nieuwoudt ,H (Hanno)	1	1363	938	1	1363.2	938	0	0	0	0	0	0
10	Goede ,K (Kari)	1	1	425	1	1	425	0	0	0	0	0	0
10	Goede ,K (Kari)	1	1435.6	1860.6	1	1423.6	1860.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Botha, J (Johan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms