Chess South Africa Ratings Database

PLAYER PAGE

Personal

Groenewald, B (Ben)

Chess SA id

109080771

FIDE id

Date of birth

2009-09-02 (U18)

Gender

Male

Region

Dr Kenneth Kaunda (NWP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-03-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	851.3	845.1	508.8	508.8
Raw rating	851.3	845.1	508.8	508.8
Weighted rating	851.3	845.1	508.8	508.8
Weighted performance	140	138.9	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	272.5	274.9	443.9	443.9
Highest rating	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	851.3 2024-02-01	845.1 2024-02-01	508.8 2024-02-01	508.8 2024-02-01
Highest weighted rating	851.3 2024-11-01	845.1 2024-11-01	508.8 2024-11-01	508.8 2024-11-01
Highest weighted performance	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	851.3	845.1	508.8	508.8
Analysis
Rating	851.3	845.1	508.8	508.8
Raw rating	851.3	845.1	508.8	508.8
Weighted rating	851.3	845.1	508.8
Weighted performance	140	138.9	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	272.5	274.9	443.9	443.9
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	851.3	845.1	508.8	508.8
New weighted rating	851.3	845.1	508.8	508.8
New weighted performance	139.7	138.6	0	0
Temp new rating	851.3	845.1	508.8	508.8
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	851.3	845.1	508.8	508.8
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	63	63

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U18
Region	Dr Kenneth Kaunda (NWP)
Province	Northwest (NW)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	31	9	29.03	-178.2	982.9	804.7
Standard	31	9	29.03	-178.2	982.9	804.7
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	851.3	845.1	508.8	508.8
2025-09-01	851.3	845.1	508.8	508.8
2025-08-01	851.3	845.1	508.8	508.8
2025-07-01	851.3	845.1	508.8	508.8
2025-06-01	851.3	845.1	508.8	508.8
2025-05-01	851.3	845.1	508.8	508.8
2025-04-01	851.3	845.1	508.8	508.8
2025-03-01	851.3	845.1	508.8	508.8
2025-02-01	851.3	845.1	508.8	508.8
2025-01-01	851.3	845.1	508.8	508.8
2024-12-01	851.3	845.1	508.8	508.8
2024-11-01	851.3	845.1	508.8	508.8
2024-10-01	851.3	845.1	508.8	508.8
2024-09-01	851.3	845.1	508.8	508.8
2024-08-01	851.3	845.1	508.8	508.8
2024-07-01	851.3	845.1	508.8	508.8
2024-06-01	851.3	845.1	508.8	508.8
2024-08-01	851.3	845.1	508.8	508.8
2024-04-01	851.3	845.1	508.8	508.8
2024-03-01	851.3	845.1	508.8	508.8
2024-02-01	851.3	845.1	508.8	508.8
2024-01-01	851.3	845.1	508.8	508.8
2023-12-01	851.3	845.1	508.8	508.8
2023-11-01	851.3	845.1	508.8	508.8

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 Hervormde Kerk (U12)	2019-03-09	2019-03-09	Standard	Dr Kenneth Kaunda (NWP)	5	5	2.5	Yes	Analysis
2	Volkskool 2019 (U12)	2019-02-02	2019-02-02	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
3	South African Junior Team Championships 2018 (U10A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	0.5	Yes	Analysis
4	Matlosana Mall 2018 (U10)	2018-10-20	2018-10-20	Standard	Dr Kenneth Kaunda (NWP)	5	5	2	Yes	Analysis
5	Driefontein Proewe 2018 (O10 Seuns)	2018-07-28	2018-07-28	Standard	Dr Kenneth Kaunda (NWP)	5	5	1	Yes	Analysis
6	Volkies 2018 (U10)	2018-05-12	2018-05-12	Standard	Dr Kenneth Kaunda (NWP)	5	4	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2019 Hervormde Kerk				Tournament 2019 Hervormde Kerk
		date 2019-03-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 5	type Standard	result 1
		Opponent Jerling, AAM (Alicia)				Opponent Jordaan, D (Dailina)
2	1	Tournament 2019 Hervormde Kerk				Tournament 2019 Hervormde Kerk
		date 2019-03-09	rnd 2	type Standard	result 0.5	date 2019-03-09	rnd 2	type Standard	result 0.5
		Opponent Jansen Van Vuuren, F (Francois)				Opponent Jansen Van Vuuren, F (Francois)
3	1	Tournament Volkskool 2019				Tournament Volkskool 2019
		date 2019-02-02	rnd 5	type Standard	result 1	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Williams, C (Caitlyn)				Opponent Williams, C (Caitlyn)

#	Games	Start				End
1	2	Tournament 2019 Hervormde Kerk				Tournament 2019 Hervormde Kerk
		date 2019-03-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 5	type Standard	result 1
		Opponent Jerling, AAM (Alicia)				Opponent Jordaan, D (Dailina)
2	1	Tournament 2019 Hervormde Kerk				Tournament 2019 Hervormde Kerk
		date 2019-03-09	rnd 2	type Standard	result 0.5	date 2019-03-09	rnd 2	type Standard	result 0.5
		Opponent Jansen Van Vuuren, F (Francois)				Opponent Jansen Van Vuuren, F (Francois)
3	1	Tournament Volkskool 2019				Tournament Volkskool 2019
		date 2019-02-02	rnd 5	type Standard	result 1	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Williams, C (Caitlyn)				Opponent Williams, C (Caitlyn)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2019 Hervormde Kerk				Tournament 2019 Hervormde Kerk
		date 2019-03-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 5	type Standard	result 1
		Opponent Jerling, AAM (Alicia)				Opponent Jordaan, D (Dailina)
2	1	Tournament Volkskool 2019				Tournament Volkskool 2019
		date 2019-02-02	rnd 5	type Standard	result 1	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Williams, C (Caitlyn)				Opponent Williams, C (Caitlyn)
3	1	Tournament Volkskool 2019				Tournament Volkskool 2019
		date 2019-02-02	rnd 3	type Standard	result 1	date 2019-02-02	rnd 3	type Standard	result 1
		Opponent Costa, HY (Hai Young)				Opponent Costa, HY (Hai Young)

#	Games	Start				End
1	2	Tournament 2019 Hervormde Kerk				Tournament 2019 Hervormde Kerk
		date 2019-03-09	rnd 4	type Standard	result 1	date 2019-03-09	rnd 5	type Standard	result 1
		Opponent Jerling, AAM (Alicia)				Opponent Jordaan, D (Dailina)
2	1	Tournament Volkskool 2019				Tournament Volkskool 2019
		date 2019-02-02	rnd 5	type Standard	result 1	date 2019-02-02	rnd 5	type Standard	result 1
		Opponent Williams, C (Caitlyn)				Opponent Williams, C (Caitlyn)
3	1	Tournament Volkskool 2019				Tournament Volkskool 2019
		date 2019-02-02	rnd 3	type Standard	result 1	date 2019-02-02	rnd 3	type Standard	result 1
		Opponent Costa, HY (Hai Young)				Opponent Costa, HY (Hai Young)

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	Krugel ,L (Lian)	2	1	0	2	1	0	0	0	0	0	0	0
1	Krugel ,L (Lian)	2	1017.8	1017.8	2	994.8	1017.8	0	0	0	0	0	0
2	Jordaan ,D (Dailina)	2	2	425	2	2	425	0	0	0	0	0	0
2	Jordaan ,D (Dailina)	2	898.1	1323.1	2	866.4	1323.1	0	0	0	0	0	0
3	Fouche ,H (Heinrich)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Fouche ,H (Heinrich)	2	1065.6	640.6	2	1106.6	640.6	0	0	0	0	0	0
4	Benadie ,JG (Jg)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Benadie ,JG (Jg)	2	732.2	307.2	2	742.2	307.2	0	0	0	0	0	0
5	Retief ,WJ (Willem Jacobus)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Retief ,WJ (Willem Jacobus)	2	811.7	386.7	2	846.2	386.7	0	0	0	0	0	0
6	Meyer ,A (Anica)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Meyer ,A (Anica)	1	504	79	1	504	79	0	0	0	0	0	0
7	Oosthuizen ,OA (Ockert Andries)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Oosthuizen ,OA (Ockert Andries)	1	1171	746	1	1171.1	746	0	0	0	0	0	0
8	Van Schaik ,K (Kayla)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Van Schaik ,K (Kayla)	1	1117.3	692.3	1	1110.1	692.3	0	0	0	0	0	0
9	Jansen Van Vuuren ,F (Francois)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Jansen Van Vuuren ,F (Francois)	1	1160.5	1160.5	1	1152.4	1160.5	0	0	0	0	0	0
10	Jerling ,AAM (Alicia)	1	1	425	1	1	425	0	0	0	0	0	0
10	Jerling ,AAM (Alicia)	1	830.5	1255.5	1	828.2	1255.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Groenewald, B (Ben)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms