Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, J (Janru)

Chess SA id

107089376

FIDE id

Date of birth

2007-08-23 (U20)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-05-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1084.6	1157.6	1022.4	1200
Raw rating	1084.6	1157.6	1022.4	1200
Weighted rating	1084.6	1157.6	1022.4	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	195.4	176.1	213.6	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1084.6	1157.6	1022.4	1200
Analysis
Rating	1084.6	1157.6	1022.4	1200
Raw rating	1084.6	1157.6	1022.4	1200
Weighted rating	1084.6	1157.6	1022.4
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	195.4	176.1	213.6	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	1084.6	1157.6	1022.4	1200
New weighted rating	1084.6	1157.6	1022.4	1200
New weighted performance	0	0	0	0
Temp new rating	1084.6	1157.6	1022.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1084.6	1157.6	1022.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	25	10	15

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Ekurhuleni (GE)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	15	4.5	30	-170	1088.5	918.5
Standard	5	2.5	50	0	994.8	994.8
Rapid	10	2	20	-255	1135.3	880.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1084.6	1157.6	1022.4	1200
2025-09-01	1084.6	1157.6	1022.4	1200
2025-08-01	1084.6	1157.6	1022.4	1200
2025-07-01	1084.6	1157.6	1022.4	1200
2025-06-01	1084.6	1157.6	1022.4	1200
2025-05-01	1084.6	1157.6	1022.4	1200
2025-04-01	1084.6	1157.6	1022.4	1200
2025-03-01	1084.6	1157.6	1022.4	1200
2025-02-01	1084.6	1157.6	1022.4	1200
2025-01-01	1084.6	1157.6	1022.4	1200
2024-12-01	1084.6	1157.6	1022.4	1200
2024-11-01	1084.6	1157.6	1022.4	1200
2024-10-01	1084.6	1157.6	1022.4	1200
2024-09-01	1084.6	1157.6	1022.4	1200
2024-08-01	1084.6	1157.6	1022.4	1200
2024-07-01	1084.6	1157.6	1022.4	1200
2024-06-01	1084.6	1157.6	1022.4	1200
2024-08-01	1084.6	1157.6	1022.4	1200
2024-04-01	1084.6	1157.6	1022.4	1200
2024-03-01	1084.6	1157.6	1022.4	1200
2024-02-01	1084.6	1157.6	1022.4	1200
2024-01-01	1084.6	1157.6	1022.4	1200
2023-12-01	1084.6	1157.6	1022.4	1200
2023-11-01	1084.6	1157.6	1022.4	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	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	0	Yes	Analysis
2	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
3	Fonties Challenge 2018 (U11)	2018-04-21	2018-04-21	Standard	Johannesburg Metro (GJM)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-04-21	rnd 5	type Standard	result 0.5
		Opponent Sibiya, M (Mlaphi)				Opponent Swart, M (Marco)
2	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Niemand, L (Luane)				Opponent Niemand, L (Luane)
3	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent De Lange, A (Angelica)				Opponent De Lange, A (Angelica)

#	Games	Start				End
1	2	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-04-21	rnd 5	type Standard	result 0.5
		Opponent Sibiya, M (Mlaphi)				Opponent Swart, M (Marco)
2	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-04-21	rnd 2	type Standard	result 1
		Opponent Van Der Merwe, N (Niel)				Opponent Van Der Merwe, N (Niel)

#	Games	Start				End
1	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Niemand, L (Luane)				Opponent Niemand, L (Luane)
2	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent De Lange, A (Angelica)				Opponent De Lange, A (Angelica)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Niemand, L (Luane)				Opponent Niemand, L (Luane)
2	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent De Lange, A (Angelica)				Opponent De Lange, A (Angelica)
3	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-04-21	rnd 4	type Standard	result 1
		Opponent Sibiya, M (Mlaphi)				Opponent Sibiya, M (Mlaphi)

#	Games	Start				End
1	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 4	type Standard	result 1	date 2018-04-21	rnd 4	type Standard	result 1
		Opponent Sibiya, M (Mlaphi)				Opponent Sibiya, M (Mlaphi)
2	1	Tournament Fonties Challenge 2018				Tournament Fonties Challenge 2018
		date 2018-04-21	rnd 2	type Standard	result 1	date 2018-04-21	rnd 2	type Standard	result 1
		Opponent Van Der Merwe, N (Niel)				Opponent Van Der Merwe, N (Niel)

#	Games	Start				End
1	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 4	type Rapid	result 1	date 2018-05-05	rnd 4	type Rapid	result 1
		Opponent Niemand, L (Luane)				Opponent Niemand, L (Luane)
2	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent De Lange, A (Angelica)				Opponent De Lange, A (Angelica)

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	Fauconier ,A (Amber)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Fauconier ,A (Amber)	1	795.6	370.6	1	790.7	370.6	0	0	0	0	0	0
2	Visagie ,M (Mondre)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Visagie ,M (Mondre)	1	1118	693	1	1118	693	0	0	0	0	0	0
3	Sibiya ,M (Mlaphi)	1	1	425	1	1	425	0	0	0	0	0	0
3	Sibiya ,M (Mlaphi)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Van Der Merwe ,N (Niel)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Der Merwe ,N (Niel)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Swart ,M (Marco)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Swart ,M (Marco)	1	660.3	660.3	1	672.6	660.3	0	0	0	0	0	0
6	Du Plessis ,L (Luzette)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Du Plessis ,L (Luzette)	1	1200	775	0	0	0	1	1200	775	0	0	0
7	Mcphail ,R (Ryan)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Mcphail ,R (Ryan)	1	1190.9	765.9	0	0	0	1	1200	765.9	0	0	0
8	Volschenk ,N (Nathan)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Volschenk ,N (Nathan)	1	1200	775	0	0	0	1	1200	775	0	0	0
9	Marais ,A (Alex)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Marais ,A (Alex)	1	1039.6	614.6	0	0	0	1	980.6	614.6	0	0	0
10	Smith ,KJ (Kayle Jean)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Smith ,KJ (Kayle Jean)	1	1070.6	645.6	0	0	0	1	610	645.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Botha, J (Janru)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms