Chess South Africa Ratings Database

PLAYER PAGE

Personal

Groenewald, M (Miguel)

Chess SA id

1090138454

FIDE id

Date of birth

2009-01-03 (U18)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-02-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1127.2	1106.3	1144.7	1200
Raw rating	1127.2	1106.3	1144.7	1200
Weighted rating	1126.4	1104.9	1144.4	1200
Weighted performance	843.9	0	846.4	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	183.9	189.5	179.4	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2020-01-01	1200 2020-01-01	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 2020-01-01	1200 2020-01-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1127.2	1106.3	1144.7	1200
Analysis
Rating	1127.2	1106.3	1144.7	1200
Raw rating	1127.2	1106.3	1144.7	1200
Weighted rating	1126.4	1104.9	1144.4
Weighted performance	843.9	0	846.4
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	183.9	189.5	179.4	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	1127.2	1106.3	1144.7	1200
New weighted rating	1126.4	1105.1	1144.4	1200
New weighted performance	842.8	0	845.3	0
Temp new rating	1127.2	1106.3	1144.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1127.2	1106.3	1144.7	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	6	0	6
	5	0	5
	20	10	10
	14	9	5
	0	0	0
History	45	19	26

Games since
	Main 11	Standard 0		Rapid 11		Blitz 0
Gender	Male
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
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	6	2	33.33	-141.7	1218.1	1076.4
Standard	0	0	0	0	0	0
Rapid	6	2	33.33	-141.7	1218.1	1076.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	45	16	35.56	-122.8	1235.3	1112.5
Standard	19	5.5	28.95	-178.9	1250	1071.1
Rapid	26	10.5	40.38	-81.7	1224.5	1142.8
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1127.2	1106.3	1144.7	1200
2025-09-01	1127.2	1106.3	1144.7	1200
2025-08-01	1127.2	1106.3	1144.7	1200
2025-07-01	1127.2	1106.3	1144.7	1200
2025-06-01	1127.2	1106.3	1144.7	1200
2025-05-01	1127.2	1106.3	1144.7	1200
2025-04-01	1127.2	1106.3	1144.7	1200
2025-03-01	1127.2	1106.3	1143.4	1200
2025-02-01	1128.3	1106.3	1145.1	1200
2025-01-01	1124.7	1102.8	1143.5	1200
2024-12-01	1124.7	1102.8	1143.5	1200
2024-11-01	1124.7	1102.8	1143.5	1200
2024-10-01	1124.7	1102.8	1143.5	1200
2024-09-01	1124.7	1102.8	1143.5	1200
2024-08-01	1124.7	1102.8	1143.5	1200
2024-07-01	1124.7	1102.8	1143.5	1200
2024-06-01	1124.7	1102.8	1143.5	1200
2024-08-01	1124.7	1102.8	1143.5	1200
2024-04-01	1124.7	1102.8	1143.5	1200
2024-03-01	1124.7	1102.8	1143.5	1200
2024-02-01	1127.1	1102.8	1149.6	1200
2024-01-01	1127.1	1102.8	1149.6	1200
2023-12-01	1127.1	1102.8	1149.6	1200
2023-11-01	1127.1	1102.8	1149.6	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	Overberg Schools - HS Trials 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Overberg Schools - HS Trials 2025 (U17 Boys)	2025-02-22	2025-02-22	Rapid	Overberg (WOS)	6	6	2	Yes	Analysis
2	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
3	Western Cape Top Schools 2023 (U15 Mixed)	2023-09-02	2023-09-03	Standard	Cape Winelands (WCW)	6	5	0	Yes	Analysis
4	Overberg Top Schools 2023 (U15+U18)	2023-08-05	2023-08-05	Standard	Overberg (WOS)	5	5	2.5	Yes	Analysis
5	Overberg High Schools Trails 2023 (U15)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
6	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
7	Overberg Topskole 2022 (O13)	2022-08-20	2022-08-20	Standard	Overberg (WOS)	5	4	1	Yes	Analysis
8	OCF Open 2022 (U14)	2022-04-09	2022-04-09	Rapid	Overberg (WOS)	5	5	2.5	Yes	Analysis
9	Overberg Primary Schools Closed 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 3	type Standard	result 0.5	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Theunissen, W (Wayde)				Opponent Pepeteni, L (Lelitha)
2	3	Tournament OCF Open 2022				Tournament OCF Open 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-04-09	rnd 5	type Rapid	result 0.5
		Opponent Mathias, I (Imelda)				Opponent Hendricks, L (Lakeisha)
3	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Manuels, I (Ingonathi)				Opponent van der Berg, I (Isaiah)

#	Games	Start				End
1	3	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 3	type Standard	result 0.5	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Theunissen, W (Wayde)				Opponent Pepeteni, L (Lelitha)
2	1	Tournament Overberg Topskole 2022				Tournament Overberg Topskole 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Fourie, E (Ewie)				Opponent Fourie, E (Ewie)
3	1	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-03-12	rnd 5	type Standard	result 1
		Opponent Du Toit, M (Matthew)				Opponent Du Toit, M (Matthew)

#	Games	Start				End
1	4	Tournament OCF Open 2022				Tournament Overberg Schools Open Tournament 2023
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2023-02-11	rnd 1	type Rapid	result 1
		Opponent Mathias, I (Imelda)				Opponent Pappas, C (Clayton)
2	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Manuels, I (Ingonathi)				Opponent van der Berg, I (Isaiah)
3	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Louw, C (Chad)				Opponent Van Schoor, J (Jade)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Manuels, I (Ingonathi)				Opponent van der Berg, I (Isaiah)
2	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Louw, C (Chad)				Opponent Van Schoor, J (Jade)
3	2	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 4	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Dzadza, O (Olithemba)				Opponent Pepeteni, L (Lelitha)

#	Games	Start				End
1	2	Tournament Overberg Top Schools 2023				Tournament Overberg Top Schools 2023
		date 2023-08-05	rnd 4	type Standard	result 1	date 2023-08-05	rnd 5	type Standard	result 1
		Opponent Dzadza, O (Olithemba)				Opponent Pepeteni, L (Lelitha)
2	1	Tournament Overberg Topskole 2022				Tournament Overberg Topskole 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Fourie, E (Ewie)				Opponent Fourie, E (Ewie)
3	1	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Primary Schools Closed 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-03-12	rnd 5	type Standard	result 1
		Opponent Du Toit, M (Matthew)				Opponent Du Toit, M (Matthew)

#	Games	Start				End
1	2	Tournament Overberg Schools - HS Trials 2025				Tournament Overberg Schools - HS Trials 2025
		date 2025-02-22	rnd 2	type Rapid	result 1	date 2025-02-22	rnd 3	type Rapid	result 1
		Opponent Manuels, I (Ingonathi)				Opponent van der Berg, I (Isaiah)
2	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Louw, C (Chad)				Opponent Van Schoor, J (Jade)
3	2	Tournament OCF Open 2022				Tournament OCF Open 2022
		date 2022-04-09	rnd 3	type Rapid	result 1	date 2022-04-09	rnd 4	type Rapid	result 1
		Opponent Mathias, I (Imelda)				Opponent Bekker, A (Angelica)

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	Beveridge ,TG (Talitha Grace)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Beveridge ,TG (Talitha Grace)	2	1356.6	931.6	1	1373.8	931.6	1	755.2	931.6	0	0	0
2	Brink ,S (Samantha)	2	0	-425	1	0	-425	1	0	-425	0	0	0
2	Brink ,S (Samantha)	2	1261.5	836.5	1	1148.2	836.5	1	1059.2	836.5	0	0	0
3	Manuels ,I (Inganathi)	2	2	425	0	0	0	2	2	425	0	0	0
3	Manuels ,I (Inganathi)	2	1189.9	1614.9	0	0	0	2	1167.8	1614.9	0	0	0
4	Koegelenberg ,L (Louw)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Koegelenberg ,L (Louw)	1	1310.4	885.4	1	1255.8	885.4	0	0	0	0	0	0
5	Tengren ,L (Liam)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Tengren ,L (Liam)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Theunissen ,W (Wayde)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Theunissen ,W (Wayde)	1	1071.8	1071.8	1	1200	1071.8	0	0	0	0	0	0
7	Du Toit ,M (Matthew)	1	1	425	1	1	425	0	0	0	0	0	0
7	Du Toit ,M (Matthew)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Sonaba ,L (Libhongo)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Sonaba ,L (Libhongo)	1	1255.4	830.4	1	1202.4	830.4	0	0	0	0	0	0
9	Pepeteni ,L (Lelitha)	1	1	425	1	1	425	0	0	0	0	0	0
9	Pepeteni ,L (Lelitha)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Erasmus ,A (Ashton)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Erasmus ,A (Ashton)	1	1196.3	771.3	1	1197.2	771.3	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, M (Miguel)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms