Chess South Africa Ratings Database

PLAYER PAGE

Personal

Botha, J (Janko)

Chess SA id

101003015

FIDE id

Date of birth

2001-10-13 (Adult)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-12-20

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1057.5	1055.3	1102.9	1102.9
Raw rating	1057.5	1055.3	1102.9	1102.9
Weighted rating	1057.4	1055.2	1102.9	1102.9
Weighted performance	88	88.3	0	0
Floor	602.9	602.9	602.9	602.9
K-factor	40	40	40	40
Min/Max rating change allowed	203.1	203.8	190.4	190.4
Highest rating	1203.9 2018-01-01	1203.9 2018-01-01	1200 2024-03-01	1200 2024-03-01
Highest raw rating	1102.9 2018-01-01	1102.9 2018-01-01	1102.9 2024-03-01	1102.9 2024-03-01
Highest weighted rating	1102.9 2024-11-01	1102.9 2024-11-01	1102.9 2024-11-01	1102.9 2024-11-01
Highest weighted performance	1203.9 2018-01-01	1203.9 2018-01-01	1200 2024-03-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1057.5	1055.3	1102.9	1102.9
Analysis
Rating	1057.5	1055.3	1102.9	1102.9
Raw rating	1057.5	1055.3	1102.9	1102.9
Weighted rating	1057.4	1055.2	1102.9
Weighted performance	88	88.3	0
K-factor	40	40	40	40
Floor	602.9	602.9	602.9	602.9
Max/Min rating change allowed	203.1	203.8	190.4	190.4
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	1057.5	1055.3	1102.9	1102.9
New weighted rating	1057.4	1055.3	1102.9	1102.9
New weighted performance	87.7	88	0	0
Temp new rating	1057.5	1055.3	1102.9	1102.9
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1057.5	1055.3	1102.9	1102.9
New K-factor	40	40	40	40
New floor	602.9	602.9	602.9	602.9

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	258	258

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
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	18	4	22.22	-236.1	1305.3	1069.2
Standard	18	4	22.22	-236.1	1305.3	1069.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1057.5	1055.3	1102.9	1102.9
2025-09-01	1057.5	1055.3	1102.9	1102.9
2025-08-01	1057.5	1055.3	1102.9	1102.9
2025-07-01	1057.5	1055.3	1102.9	1102.9
2025-06-01	1057.5	1055.3	1102.9	1102.9
2025-05-01	1057.5	1055.3	1102.9	1102.9
2025-04-01	1057.5	1055.3	1102.9	1102.9
2025-03-01	1057.5	1055.3	1102.9	1102.9
2025-02-01	1057.5	1055.3	1102.9	1102.9
2025-01-01	1057.5	1055.3	1102.9	1102.9
2024-12-01	1057.5	1055.3	1102.9	1102.9
2024-11-01	1057.5	1055.3	1102.9	1102.9
2024-10-01	1057.5	1055.3	1102.9	1102.9
2024-09-01	1057.5	1055.3	1102.9	1102.9
2024-08-01	1057.5	1055.3	1102.9	1102.9
2024-07-01	1057.5	1055.3	1102.9	1102.9
2024-06-01	1057.5	1055.3	1102.9	1102.9
2024-08-01	1057.5	1055.3	1102.9	1102.9
2024-04-01	1057.5	1055.3	1102.9	1102.9
2024-03-01	1057.5	1055.3	1102.9	1102.9
2024-02-01	1057.5	1055.3	1102.9	1102.9
2024-01-01	1057.5	1055.3	1102.9	1102.9
2023-12-01	1049.4	1048.9	1102.9	1102.9
2023-11-01	1049.4	1048.9	1102.9	1102.9

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	South African Junior Team Championships 2018 (U18B)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	1.5	Yes	Analysis
2	Driefontein Proewe 2018 (O20 Seuns)	2018-07-28	2018-07-28	Standard	Dr Kenneth Kaunda (NWP)	5	4	1.5	Yes	Analysis
3	South African Junior Team Championships 2017 (U18A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-18	rnd 5	type Standard	result 0.5	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Juta, C (Cornell)				Opponent Lewis, H (Henrique)
2	2	Tournament Driefontein Proewe 2018				Tournament Driefontein Proewe 2018
		date 2018-07-28	rnd 4	type Standard	result 1	date 2018-07-28	rnd 5	type Standard	result 0.5
		Opponent James, S (Sebenzile)				Opponent Fouche, J (Janu)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-08	rnd 7	type Standard	result 0.5	date 2018-01-08	rnd 7	type Standard	result 0.5
		Opponent Mantje, K (Katleho)				Opponent Mantje, K (Katleho)

#	Games	Start				End
1	2	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-18	rnd 5	type Standard	result 0.5	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Juta, C (Cornell)				Opponent Lewis, H (Henrique)
2	2	Tournament Driefontein Proewe 2018				Tournament Driefontein Proewe 2018
		date 2018-07-28	rnd 4	type Standard	result 1	date 2018-07-28	rnd 5	type Standard	result 0.5
		Opponent James, S (Sebenzile)				Opponent Fouche, J (Janu)
3	1	Tournament South African Junior Team Championships 2017				Tournament South African Junior Team Championships 2017
		date 2018-01-08	rnd 7	type Standard	result 0.5	date 2018-01-08	rnd 7	type Standard	result 0.5
		Opponent Mantje, K (Katleho)				Opponent Mantje, K (Katleho)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-19	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Lewis, H (Henrique)				Opponent Lewis, H (Henrique)
2	1	Tournament Driefontein Proewe 2018				Tournament Driefontein Proewe 2018
		date 2018-07-28	rnd 4	type Standard	result 1	date 2018-07-28	rnd 4	type Standard	result 1
		Opponent James, S (Sebenzile)				Opponent James, S (Sebenzile)

#	Games	Start				End
1	1	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-19	rnd 6	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Lewis, H (Henrique)				Opponent Lewis, H (Henrique)
2	1	Tournament Driefontein Proewe 2018				Tournament Driefontein Proewe 2018
		date 2018-07-28	rnd 4	type Standard	result 1	date 2018-07-28	rnd 4	type Standard	result 1
		Opponent James, S (Sebenzile)				Opponent James, S (Sebenzile)

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	Lewis ,H (Henrique)	1	1	425	1	1	425	0	0	0	0	0	0
1	Lewis ,H (Henrique)	1	1013.9	1438.9	1	1019.6	1438.9	0	0	0	0	0	0
2	Vester ,J (Jordan)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Vester ,J (Jordan)	1	1881	1456	1	1881	1456	0	0	0	0	0	0
3	Zondo ,LC (Linda Cyril)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Zondo ,LC (Linda Cyril)	1	1297.7	872.7	1	1297.7	872.7	0	0	0	0	0	0
4	Maseng ,GT (Gomolemo Thebetsile)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Maseng ,GT (Gomolemo Thebetsile)	1	1153.3	728.3	1	1158.2	728.3	0	0	0	0	0	0
5	Mantje ,K (Katleho)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Mantje ,K (Katleho)	1	1226.7	1226.7	1	1226.7	1226.7	0	0	0	0	0	0
6	To ,H (Himson)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	To ,H (Himson)	1	1235.5	810.5	1	1235.5	810.5	0	0	0	0	0	0
7	Pelser ,C (Casper-Hugo)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Pelser ,C (Casper-Hugo)	1	1335.8	910.8	1	1343.5	910.8	0	0	0	0	0	0
8	James ,S (Sebenzile)	1	1	425	1	1	425	0	0	0	0	0	0
8	James ,S (Sebenzile)	1	1087.3	1512.3	1	1084.9	1512.3	0	0	0	0	0	0
9	Blomeyer ,C (Chad)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Blomeyer ,C (Chad)	1	1406.9	981.9	1	1406.9	981.9	0	0	0	0	0	0
10	Roux ,D (Duval)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Roux ,D (Duval)	1	991.6	566.6	1	995.8	566.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Botha, J (Janko)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms