Chess South Africa Ratings Database

PLAYER PAGE

Personal

Groenewald, J (Jason)

Chess SA id

1110151146

FIDE id

Date of birth

2011-12-22 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-02-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1149.4	1200	1128.4	1200
Raw rating	1149.4	1200	1128.4	1200
Weighted rating	1148.7	1200	1128	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	178.2	165.8	183.6	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2024-02-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2020-01-01	1200 2024-02-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1149.4	1200	1128.4	1200
Analysis
Rating	1149.4	1200	1128.4	1200
Raw rating	1149.4	1200	1128.4	1200
Weighted rating	1148.7	1200	1128
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	178.2	165.8	183.6	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	1149.4	1200	1128.4	1200
New weighted rating	1148.8	1200	1128.1	1200
New weighted performance	0	0	0	0
Temp new rating	1149.4	1200	1128.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1149.4	1200	1128.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Rapid
	0	0
	0	0
	5	5
	11	11
	0	0
	0	0
History	16	16

Games since
	Main 11	Standard 0		Rapid 11		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	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	5	31.25	-159.4	1213.2	1053.8
Standard	0	0	0	0	0	0
Rapid	16	5	31.25	-159.4	1213.2	1053.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1149.4	1200	1128.4	1200
2025-09-30	1149.4	1200	1128.4	1200
2025-09-01	1149.4	1200	1128.4	1200
2025-08-01	1149.4	1200	1128.4	1200
2025-07-01	1149.4	1200	1128.4	1200
2025-06-01	1149.4	1200	1128.4	1200
2025-05-01	1149.4	1200	1128.4	1200
2025-04-01	1149.4	1200	1128.4	1200
2025-03-01	1149.4	1200	1128.4	1200
2025-02-01	1149.4	1200	1128.4	1200
2025-01-01	1147.2	1200	1127.6	1200
2024-12-01	1147.2	1200	1127.6	1200
2024-11-01	1147.2	1200	1127.6	1200
2024-10-01	1147.2	1200	1127.6	1200
2024-09-01	1147.2	1200	1127.6	1200
2024-08-01	1147.2	1200	1127.6	1200
2024-07-01	1147.2	1200	1127.6	1200
2024-09-01	1147.2	1200	1127.6	1200
2024-05-01	1147.2	1200	1127.6	1200
2024-04-01	1147.2	1200	1127.6	1200
2024-03-01	1147.2	1200	1127.6	1200
2024-02-01	1147.7	1200	1119.6	1200
2024-01-01	1147.7	1200	1119.6	1200
2023-12-01	1147.7	1200	1119.6	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	Mary-Anne Bartels Closed Chess Tournament 2024 (U13 Mixed)	2024-02-24	2024-02-24	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
2	Grant East Primary School Invitational Chess Tournament 2023 (U13 Mixed)	2023-11-04	2023-11-04	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
3	Mary-Anne Bartels Chess Tournament 2023 (U13)	2023-02-21	2023-02-21	Rapid	Cape Town (WCT)	5	5	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 4	type Rapid	result 1	date 2023-11-04	rnd 5	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Alexander, K (Keathon)
2	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Claassens, H (Hagan)				Opponent Claassens, H (Hagan)
3	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Smollen, M (Mila)				Opponent Smollen, M (Mila)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 4	type Rapid	result 1	date 2023-11-04	rnd 5	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Alexander, K (Keathon)
2	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Claassens, H (Hagan)				Opponent Claassens, H (Hagan)
3	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Smollen, M (Mila)				Opponent Smollen, M (Mila)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 4	type Rapid	result 1	date 2023-11-04	rnd 5	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Alexander, K (Keathon)
2	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Claassens, H (Hagan)				Opponent Claassens, H (Hagan)
3	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Smollen, M (Mila)				Opponent Smollen, M (Mila)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Grant East Primary School Invitational Chess Tournament 2023				Tournament Grant East Primary School Invitational Chess Tournament 2023
		date 2023-11-04	rnd 4	type Rapid	result 1	date 2023-11-04	rnd 5	type Rapid	result 1
		Opponent Grohban, H (Hendricks Paulo)				Opponent Alexander, K (Keathon)
2	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 4	type Rapid	result 1
		Opponent Claassens, H (Hagan)				Opponent Claassens, H (Hagan)
3	1	Tournament Mary-Anne Bartels Closed Chess Tournament 2024				Tournament Mary-Anne Bartels Closed Chess Tournament 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Smollen, M (Mila)				Opponent Smollen, M (Mila)

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	Kramer ,R (Ruan)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	Kramer ,R (Ruan)	2	1229.8	804.8	0	0	0	2	1219.1	804.8	0	0	0
2	Yoon ,YJ (Yea Jun)	1	0	-425	0	0	0	1	0	-425	0	0	0
2	Yoon ,YJ (Yea Jun)	1	1251.2	826.2	0	0	0	1	1273.5	826.2	0	0	0
3	Khumalo ,M (Mthulisi)	1	0	-425	0	0	0	1	0	-425	0	0	0
3	Khumalo ,M (Mthulisi)	1	1207.3	782.3	0	0	0	1	1213.4	782.3	0	0	0
4	Van Zyl ,L (Lindie)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	Van Zyl ,L (Lindie)	1	1135.1	710.1	0	0	0	1	1171.5	710.1	0	0	0
5	Alexander ,K (Keathon)	1	1	425	0	0	0	1	1	425	0	0	0
5	Alexander ,K (Keathon)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
6	Swart ,O (Owen)	1	1	425	0	0	0	1	1	425	0	0	0
6	Swart ,O (Owen)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	Smollen ,M (Mila)	1	1	425	0	0	0	1	1	425	0	0	0
7	Smollen ,M (Mila)	1	1105.8	1530.8	0	0	0	1	1112.7	1530.8	0	0	0
8	Grohban ,H (Hendricks Paulo)	1	1	425	0	0	0	1	1	425	0	0	0
8	Grohban ,H (Hendricks Paulo)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
9	Swart ,R (Richardo)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Swart ,R (Richardo)	1	1200	775	0	0	0	1	1200	775	0	0	0
10	Naude ,C (Cilan)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Naude ,C (Cilan)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Groenewald, J (Jason)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms