Chess South Africa Ratings Database

PLAYER PAGE

Personal

Groenewald, J (Janu)

Chess SA id

1160162388

FIDE id

Date of birth

2016-02-29 (U10)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-03-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1133.7	1149.2	1140.8	1200
Raw rating	1133.7	1149.2	1140.8	1200
Weighted rating	1129.3	1143.9	1139.2	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	182.2	178.3	180.4	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1133.7	1149.2	1140.8	1200
Analysis
Rating	1133.7	1149.2	1140.8	1200
Raw rating	1133.7	1149.2	1140.8	1200
Weighted rating	1129.3	1143.9	1139.2
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	182.2	178.3	180.4	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	1133.7	1149.2	1140.8	1200
New weighted rating	1129.4	1144	1139.4	1200
New weighted performance	0	0	0	0
Temp new rating	1133.7	1149.2	1140.8	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1133.7	1149.2	1140.8	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	10	10	0
	5	0	5
	0	0	0
	0	0	0
History	15	10	5

Games since
	Main 10	Standard 10		Rapid 0		Blitz 0
Gender	Male
Age group	U10
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	15	4	26.67	-198.3	1187.8	989.5
Standard	10	3	30	-170	1183.7	1013.7
Rapid	5	1	20	-255	1196.1	941.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1133.7	1149.2	1140.8	1200
2025-09-30	1133.7	1149.2	1140.8	1200
2025-09-01	1133.7	1149.2	1140.8	1200
2025-08-01	1133.7	1149.2	1140.8	1200
2025-07-01	1133.7	1149.2	1140.8	1200
2025-06-01	1133.7	1149.2	1140.8	1200
2025-05-01	1133.7	1149.2	1140.8	1200
2025-04-01	1133.7	1149.2	1140.8	1200
2025-03-01	1133.7	1149.2	1140.8	1200
2025-02-01	1133.7	1149	1140.8	1200
2025-01-01	1116.7	1128	1136.3	1200
2024-12-01	1116.7	1128	1136.3	1200
2024-11-01	1116.7	1128	1136.3	1200
2024-10-01	1116.7	1128	1136.3	1200
2024-09-01	1116.7	1128	1136.3	1200
2024-08-01	1116.7	1128	1136.3	1200
2024-07-01	1116.7	1128	1136.3	1200
2024-09-01	1116.7	1128	1136.3	1200
2024-05-01	1116.7	1128	1136.3	1200
2024-04-01	1116.7	1128	1136.3	1200
2024-03-01	1156.4	1180.6	1136.3	1200
2024-02-01	1166.3	1200	1136.3	1200
2024-01-01	1166.3	1200	1136.3	1200
2023-12-01	1166.3	1200	1136.3	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	Eden School Chess Trials 1 2024 (U9 Boys)	2024-03-09	2024-03-09	Standard	Eden (WEG)	5	5	1	Yes	Analysis
2	OUDUSSA Trials 2 2024 (U7+U9 Boys+Girls)	2024-02-17	2024-02-17	Standard	Eden (WEG)	5	5	2	Yes	Analysis
3	Mossel Bay Open 2023 (C)	2023-09-30	2023-09-30	Rapid	Eden (WEG)	5	5	1	Yes	Analysis

#	Games	Start				End
1	2	Tournament Mossel Bay Open 2023				Tournament OUDUSSA Trials 2 2024
		date 2023-09-30	rnd 5	type Rapid	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Greeff, N (Noah)				Opponent Jacobs, S (Stefiano)
2	1	Tournament Eden School Chess Trials 1 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Modupe, L (Lesego)				Opponent Modupe, L (Lesego)
3	1	Tournament OUDUSSA Trials 2 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Schoeman, E (Evonicia)				Opponent Schoeman, E (Evonicia)

#	Games	Start				End
1	1	Tournament Eden School Chess Trials 1 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Modupe, L (Lesego)				Opponent Modupe, L (Lesego)
2	1	Tournament OUDUSSA Trials 2 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Schoeman, E (Evonicia)				Opponent Schoeman, E (Evonicia)
3	1	Tournament OUDUSSA Trials 2 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-17	rnd 1	type Standard	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Jacobs, S (Stefiano)				Opponent Jacobs, S (Stefiano)

#	Games	Start				End
1	1	Tournament Mossel Bay Open 2023				Tournament Mossel Bay Open 2023
		date 2023-09-30	rnd 5	type Rapid	result 1	date 2023-09-30	rnd 5	type Rapid	result 1
		Opponent Greeff, N (Noah)				Opponent Greeff, N (Noah)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Mossel Bay Open 2023				Tournament OUDUSSA Trials 2 2024
		date 2023-09-30	rnd 5	type Rapid	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Greeff, N (Noah)				Opponent Jacobs, S (Stefiano)
2	1	Tournament Eden School Chess Trials 1 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Modupe, L (Lesego)				Opponent Modupe, L (Lesego)
3	1	Tournament OUDUSSA Trials 2 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Schoeman, E (Evonicia)				Opponent Schoeman, E (Evonicia)

#	Games	Start				End
1	1	Tournament Eden School Chess Trials 1 2024				Tournament Eden School Chess Trials 1 2024
		date 2024-03-09	rnd 3	type Standard	result 1	date 2024-03-09	rnd 3	type Standard	result 1
		Opponent Modupe, L (Lesego)				Opponent Modupe, L (Lesego)
2	1	Tournament OUDUSSA Trials 2 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-17	rnd 5	type Standard	result 1	date 2024-02-17	rnd 5	type Standard	result 1
		Opponent Schoeman, E (Evonicia)				Opponent Schoeman, E (Evonicia)
3	1	Tournament OUDUSSA Trials 2 2024				Tournament OUDUSSA Trials 2 2024
		date 2024-02-17	rnd 1	type Standard	result 1	date 2024-02-17	rnd 1	type Standard	result 1
		Opponent Jacobs, S (Stefiano)				Opponent Jacobs, S (Stefiano)

#	Games	Start				End
1	1	Tournament Mossel Bay Open 2023				Tournament Mossel Bay Open 2023
		date 2023-09-30	rnd 5	type Rapid	result 1	date 2023-09-30	rnd 5	type Rapid	result 1
		Opponent Greeff, N (Noah)				Opponent Greeff, N (Noah)

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	Williams ,L (Lauri-Url)	1	0	-425	1	0	-425	0	0	0	0	0	0
1	Williams ,L (Lauri-Url)	1	1200	775	1	1200	775	0	0	0	0	0	0
2	Rabie ,M (Mizelle)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Rabie ,M (Mizelle)	1	1139.4	714.4	1	1132.7	714.4	0	0	0	0	0	0
3	Plaatjies ,A (Ayren)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Plaatjies ,A (Ayren)	1	1200	775	1	1200	775	0	0	0	0	0	0
4	Schoeman ,E (Evonicia)	1	1	425	1	1	425	0	0	0	0	0	0
4	Schoeman ,E (Evonicia)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Modupe ,L (Lesego)	1	1	425	1	1	425	0	0	0	0	0	0
5	Modupe ,L (Lesego)	1	1032.1	1457.1	1	1006.4	1457.1	0	0	0	0	0	0
6	Steenberg ,R (Regardt)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Steenberg ,R (Regardt)	1	1233.5	808.5	1	1243.8	808.5	0	0	0	0	0	0
7	Fredericks ,M (Matai)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Fredericks ,M (Matai)	1	1297.9	872.9	1	1320.6	872.9	0	0	0	0	0	0
8	Sefoor ,Z (Zayden)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Sefoor ,Z (Zayden)	1	1093.5	668.5	1	1080	668.5	0	0	0	0	0	0
9	Jacobs ,S (Stefiano)	1	1	425	1	1	425	0	0	0	0	0	0
9	Jacobs ,S (Stefiano)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Oberholzer ,M (Milan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Oberholzer ,M (Milan)	1	1240.1	815.1	1	1249.6	815.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Groenewald, J (Janu)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms