Chess South Africa Ratings Database

PLAYER PAGE

Personal

Joby, J (Jerold)

Chess SA id

1110323389

FIDE id

Date of birth

2011-02-26 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1213.2	1202.6	1228.8	1200
Raw rating	1213.2	1202.6	1228.8	1200
Weighted rating	1203	1200.4	1206.6	1200
Weighted performance	0	0	0	0
Floor	713.2	702.6	728.8	700
K-factor	36	36	36	36
Min/Max rating change allowed	162.7	165.2	159.1	165.8
Highest rating	1213.2 2025-09-01	1202.6 2025-09-01	1228.8 2025-08-01	1200 2025-08-01
Highest raw rating	1213.2 2025-09-01	1202.6 2025-09-01	1228.8 2025-08-01	1200 2025-08-01
Highest weighted rating	1202 2025-09-01	1200.2 2025-09-01	1202.3 2025-08-01	1200 2025-08-01
Highest weighted performance	0 1900-01-01	0 1900-01-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1213.2	1202.6	1228.8	1200
Analysis
Rating	1213.2	1202.6	1228.8	1200
Raw rating	1213.2	1202.6	1228.8	1200
Weighted rating	1203	1200.4	1206.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	713.2	702.6	728.8	700
Max/Min rating change allowed	162.7	165.2	159.1	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	1213.2	1202.6	1228.8	1200
New weighted rating	1203.9	1200.6	1208.6	1200
New weighted performance	0	0	0	0
Temp new rating	1213.2	1202.6	1228.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1213.2	1202.6	1228.8	1200
New K-factor	36	36	36	36
New floor	713.2	702.6	728.8	700

Item	Main	Standard	Rapid
	0	0	0
	10	3	7
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	10	3	7

Games since
	Main 10	Standard 3		Rapid 7		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
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	10	6	60	85	1169.3	1254.3
Standard	3	1.5	50	0	1208.6	1208.6
Rapid	7	4.5	64.29	121.4	1152.4	1273.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	10	6	60	85	1169.3	1254.3
Standard	3	1.5	50	0	1208.6	1208.6
Rapid	7	4.5	64.29	121.4	1152.4	1273.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1213.2	1202.6	1228.8	1200
2025-09-01	1213.2	1202.6	1228.8	1200
2025-08-01	1212.3	1200	1228.8	1200
2025-07-01	1200	1200	1200	1200
2025-06-01	1200	1200	1200	1200
2025-05-01	1200	1200	1200	1200
2025-04-01	1200	1200	1200	1200
2025-03-01	1200	1200	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	1200	1200	1200	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro District East Top Schools Chess 2025 (U19)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	3	1.5	Yes	Analysis
2	4th Curro Durbanville Rapid Open 2025 (Beginner)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	4.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	CT Metro District East Top Schools Chess 2025 (U19)	2025-08-02	2025-08-03	Standard	Cape Town (WCT)	5	3	1.5	Yes	Analysis
2	4th Curro Durbanville Rapid Open 2025 (Beginner)	2025-07-19	2025-07-19	Rapid	Cape Town (WCT)	7	7	4.5	Yes	Analysis

#	Games	Start				End
1	4	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 7	type Rapid	result 0.5
		Opponent Krele, I (Inathi)				Opponent Tshaka, L (Lingomso)
2	2	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 4	type Standard	result 0.5	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Koegelenberg, U (Ulrich)				Opponent Springveldt, J (Jaden-lee)
3	1	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 2	type Rapid	result 1	date 2025-07-19	rnd 2	type Rapid	result 1
		Opponent Mlandu, A (Azingce)				Opponent Mlandu, A (Azingce)

#	Games	Start				End
1	2	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 4	type Standard	result 0.5	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Koegelenberg, U (Ulrich)				Opponent Springveldt, J (Jaden-lee)

#	Games	Start				End
1	4	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 7	type Rapid	result 0.5
		Opponent Krele, I (Inathi)				Opponent Tshaka, L (Lingomso)
2	1	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 2	type Rapid	result 1	date 2025-07-19	rnd 2	type Rapid	result 1
		Opponent Mlandu, A (Azingce)				Opponent Mlandu, A (Azingce)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Krele, I (Inathi)				Opponent Wu, E (Evan)
2	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 5	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Springveldt, J (Jaden-lee)				Opponent Springveldt, J (Jaden-lee)
3	1	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 2	type Rapid	result 1	date 2025-07-19	rnd 2	type Rapid	result 1
		Opponent Mlandu, A (Azingce)				Opponent Mlandu, A (Azingce)

#	Games	Start				End
1	1	Tournament CT Metro District East Top Schools Chess 2025				Tournament CT Metro District East Top Schools Chess 2025
		date 2025-08-03	rnd 5	type Standard	result 1	date 2025-08-03	rnd 5	type Standard	result 1
		Opponent Springveldt, J (Jaden-lee)				Opponent Springveldt, J (Jaden-lee)

#	Games	Start				End
1	3	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 4	type Rapid	result 1	date 2025-07-19	rnd 6	type Rapid	result 1
		Opponent Krele, I (Inathi)				Opponent Wu, E (Evan)
2	1	Tournament 4th Curro Durbanville Rapid Open 2025				Tournament 4th Curro Durbanville Rapid Open 2025
		date 2025-07-19	rnd 2	type Rapid	result 1	date 2025-07-19	rnd 2	type Rapid	result 1
		Opponent Mlandu, A (Azingce)				Opponent Mlandu, A (Azingce)

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	Springveldt ,J (Jaden-lee)	1	1	425	1	1	425	0	0	0	0	0	0
1	Springveldt ,J (Jaden-lee)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
2	Koegelenberg ,U (Ulrich)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
2	Koegelenberg ,U (Ulrich)	1	1225.8	1225.8	1	1225.9	1225.8	0	0	0	0	0	0
3	Nikelo ,L (Liyema)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Nikelo ,L (Liyema)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Smit ,M (Mario)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Smit ,M (Mario)	1	1175.2	750.2	0	0	0	1	1186.6	750.2	0	0	0
5	Du Plessis ,T (Tjaard)	1	1	425	0	0	0	1	1	425	0	0	0
5	Du Plessis ,T (Tjaard)	1	1188.5	1613.5	0	0	0	1	1181.8	1613.5	0	0	0
6	Gatyeni ,K (Khayone)	1	0	-425	0	0	0	1	0	-425	0	0	0
6	Gatyeni ,K (Khayone)	1	1101.4	676.4	0	0	0	1	1124	676.4	0	0	0
7	Krele ,I (Inathi)	1	1	425	0	0	0	1	1	425	0	0	0
7	Krele ,I (Inathi)	1	1157.6	1582.6	0	0	0	1	1134.2	1582.6	0	0	0
8	Mlandu ,A (Azingce)	1	1	425	0	0	0	1	1	425	0	0	0
8	Mlandu ,A (Azingce)	1	1084.3	1509.3	0	0	0	1	1097.1	1509.3	0	0	0
9	Tshaka ,L (Lingomso)	1	0.5	0	0	0	0	1	0.5	0	0	0	0
9	Tshaka ,L (Lingomso)	1	1200	1200	0	0	0	1	1200	1200	0	0	0
10	Wu ,E (Evan)	1	1	425	0	0	0	1	1	425	0	0	0
10	Wu ,E (Evan)	1	1159.7	1584.7	0	0	0	1	1200	1584.7	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Joby, J (Jerold)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms