Chess South Africa Ratings Database

PLAYER PAGE

Personal

Groenewald, J (Jacques)

Chess SA id

1110140469

FIDE id

Date of birth

2011-10-07 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-07-19

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1376.3

Item	Main	Standard	Rapid	Blitz
Rating	1202.4	1198.6	1200	1200
Raw rating	1202.4	1198.6	1200	1200
Weighted rating	1147.4	1130.3	1200	1200
Weighted performance	1106	1102.9	0	0
Floor	702.4	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	165.3	166.2	165.8	165.8
Highest rating	1202.4 2025-08-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1202.4 2025-08-01	1200 2020-01-01	1200 2024-02-01	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 2020-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1202.4	1198.6	1200	1200
Analysis
Rating	1202.4	1198.6	1200	1200
Raw rating	1202.4	1198.6	1200	1200
Weighted rating	1147.4	1130.3	1200
Weighted performance	1106	1102.9	0
K-factor	36	36	36	36
Floor	702.4	700	700	700
Max/Min rating change allowed	165.3	166.2	165.8	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	1202.4	1198.6	1200	1200
New weighted rating	1153.3	1137.7	1200	1200
New weighted performance	1105.6	1102.4	0	0
Temp new rating	1202.4	1198.6	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1202.4	1198.6	1200	1200
New K-factor	36	36	36	36
New floor	702.4	700	700	700

Item	Main	Standard
	0	0
	14	14
	0	0
	0	0
	10	10
	0	0
History	24	24

Games since
	Main 14	Standard 14		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Tshwane (GTP)
Province	Gauteng (GT)
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	14	8	57.14	60.7	1265.1	1325.8
Standard	14	8	57.14	60.7	1265.1	1325.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	24	11	45.83	-35.4	1204	1168.6
Standard	24	11	45.83	-35.4	1204	1168.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1202.4	1198.6	1200	1200
2025-09-01	1202.4	1198.6	1200	1200
2025-08-01	1202.4	1198.6	1200	1200
2025-07-01	1192.8	1185.9	1200	1200
2025-06-01	1192.8	1185.9	1200	1200
2025-05-01	1192.8	1185.9	1200	1200
2025-04-01	1192.8	1185.9	1200	1200
2025-03-01	1099.4	1071.2	1200	1200
2025-02-01	1099.4	1071.2	1200	1200
2025-01-01	1099.4	1071.2	1200	1200
2024-12-01	1099.4	1071.2	1200	1200
2024-11-01	1099.4	1071.2	1200	1200
2024-10-01	1099.4	1071.2	1200	1200
2024-09-01	1099.4	1071.2	1200	1200
2024-08-01	1099.4	1071.2	1200	1200
2024-07-01	1099.4	1071.2	1200	1200
2024-06-01	1099.4	1071.2	1200	1200
2024-08-01	1099.4	1071.2	1200	1200
2024-04-01	1099.4	1071.2	1200	1200
2024-03-01	1099.4	1071.2	1200	1200
2024-02-01	1099.4	1071.2	1200	1200
2024-01-01	1099.4	1071.2	1200	1200
2023-12-01	1099.4	1071.2	1200	1200
2023-11-01	1099.4	1071.2	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	2025 Wynie Robbertse Chess Tournament (D)	2025-07-19	2025-07-19	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Lubowski Open 2025 (D2)	2025-03-21	2025-03-22	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	AHS Open Chess Tournament 2025 (D)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Wynie Robbertse Chess Tournament (D)	2025-07-19	2025-07-19	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Lubowski Open 2025 (D2)	2025-03-21	2025-03-22	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
3	AHS Open Chess Tournament 2025 (D)	2025-03-01	2025-03-01	Standard	Tshwane (GTP)	5	4	2.5	Yes	Analysis
4	2022 Mid Gauteng Open (D)	2022-05-07	2022-05-07	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
5	2022 Silver Lakes Chess Club Open Chess Tournament (D)	2022-05-14	2022-05-14	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Lubowski Open 2025				Tournament Lubowski Open 2025
		date 2025-03-21	rnd 2	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Marais, L (Luke)				Opponent Kgwale, K (Keratilwe)
2	2	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 4	type Standard	result 0.5	date 2025-07-19	rnd 5	type Standard	result 1
		Opponent Masina, M (Mandisa)				Opponent Nyaphuli, R (Reneiloe)
3	2	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 0.5
		Opponent Van Der Berg, L (Luan)				Opponent Badenhorst, M (Michael)

#	Games	Start				End
1	3	Tournament Lubowski Open 2025				Tournament Lubowski Open 2025
		date 2025-03-21	rnd 2	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Marais, L (Luke)				Opponent Kgwale, K (Keratilwe)
2	2	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 4	type Standard	result 0.5	date 2025-07-19	rnd 5	type Standard	result 1
		Opponent Masina, M (Mandisa)				Opponent Nyaphuli, R (Reneiloe)
3	2	Tournament AHS Open Chess Tournament 2025				Tournament AHS Open Chess Tournament 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 0.5
		Opponent Van Der Berg, L (Luan)				Opponent Badenhorst, M (Michael)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Lubowski Open 2025				Tournament Lubowski Open 2025
		date 2025-03-21	rnd 2	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Marais, L (Luke)				Opponent Kgwale, K (Keratilwe)
2	1	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 5	type Standard	result 1	date 2025-07-19	rnd 5	type Standard	result 1
		Opponent Nyaphuli, R (Reneiloe)				Opponent Nyaphuli, R (Reneiloe)
3	1	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 2	type Standard	result 1
		Opponent Masilela, S (Siyamthanda)				Opponent Masilela, S (Siyamthanda)

#	Games	Start				End
1	3	Tournament Lubowski Open 2025				Tournament Lubowski Open 2025
		date 2025-03-21	rnd 2	type Standard	result 1	date 2025-03-22	rnd 4	type Standard	result 1
		Opponent Marais, L (Luke)				Opponent Kgwale, K (Keratilwe)
2	1	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 5	type Standard	result 1	date 2025-07-19	rnd 5	type Standard	result 1
		Opponent Nyaphuli, R (Reneiloe)				Opponent Nyaphuli, R (Reneiloe)
3	1	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 2	type Standard	result 1
		Opponent Masilela, S (Siyamthanda)				Opponent Masilela, S (Siyamthanda)

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	Badenhorst ,M (Michael)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Badenhorst ,M (Michael)	1	1252.2	1252.2	1	1246.3	1252.2	0	0	0	0	0	0
2	Niehaus ,J (Johannes)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Niehaus ,J (Johannes)	1	1108.9	683.9	1	1058.8	683.9	0	0	0	0	0	0
3	Kgwale ,K (Keratilwe)	1	1	425	1	1	425	0	0	0	0	0	0
3	Kgwale ,K (Keratilwe)	1	1279.3	1704.3	1	1276.5	1704.3	0	0	0	0	0	0
4	Shela ,T (Tshepo)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Shela ,T (Tshepo)	1	1158.5	733.5	1	1147.1	733.5	0	0	0	0	0	0
5	Mahamotsa ,W (Wilson M)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Mahamotsa ,W (Wilson M)	1	1284	859	1	1269.3	859	0	0	0	0	0	0
6	Ramonyai ,M (Maribe)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Ramonyai ,M (Maribe)	1	1401.3	976.3	1	1397.5	976.3	0	0	0	0	0	0
7	Thong ,F (Fu Shing)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Thong ,F (Fu Shing)	1	1272.2	847.2	1	1281.1	847.2	0	0	0	0	0	0
8	Jacobs ,I (Inge)	1	1	425	1	1	425	0	0	0	0	0	0
8	Jacobs ,I (Inge)	1	1296.5	1721.5	1	1289.6	1721.5	0	0	0	0	0	0
9	Osmond ,R (Ryan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Osmond ,R (Ryan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Mahlangu ,NP (Nkosinathi Phillip)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mahlangu ,NP (Nkosinathi Phillip)	1	1148.9	723.9	1	1138.1	723.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Groenewald, J (Jacques)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms