Chess South Africa Ratings Database

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Personal

Marx, EF (Ethen Frederik)

Chess SA id

1100107178

FIDE id

Date of birth

2010-07-21 (U16)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-06

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1264.6

Item	Main	Standard	Rapid	Blitz
Rating	1237.9	1239.5	1200	1200
Raw rating	1237.9	1239.5	1200	1200
Weighted rating	1206.8	1202.4	1200	1200
Weighted performance	1213.3	1212.2	0	0
Floor	749.5	754.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.1	156.7	165.8	165.8
Highest rating	1249.5 2025-09-01	1254.6 2025-09-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1249.5 2025-09-01	1254.6 2025-09-01	1200 2024-02-01	1200 2024-02-01
Highest weighted rating	1234.8 2019-02-01	1237 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1240.4 2025-09-01	1238.9 2025-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1237.9	1239.5	1200	1200
Analysis
Rating	1237.9	1239.5	1200	1200
Raw rating	1237.9	1239.5	1200	1200
Weighted rating	1206.8	1202.4	1200
Weighted performance	1213.3	1212.2	0
K-factor	36	36	36	36
Floor	749.5	754.6	700	700
Max/Min rating change allowed	157.1	156.7	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	1237.9	1239.5	1200	1200
New weighted rating	1210	1206.2	1200	1200
New weighted performance	1212.8	1211.7	0	0
Temp new rating	1237.9	1239.5	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1237.9	1239.5	1200	1200
New K-factor	36	36	36	36
New floor	749.5	754.6	700	700

Item	Main	Standard
	0	0
	28	28
	0	0
	0	0
	0	0
	0	0
History	43	43

Games since
	Main 28	Standard 28		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	28	14.5	51.79	15.2	1251.9	1267.1
Standard	28	14.5	51.79	15.2	1251.9	1267.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	43	22.5	52.33	19.8	1215.7	1235.4
Standard	43	22.5	52.33	19.8	1215.7	1235.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1237.9	1239.5	1200	1200
2025-09-01	1249.5	1254.6	1200	1200
2025-08-01	1234.8	1237	1200	1200
2025-07-01	1234.8	1237	1200	1200
2025-06-01	1194	1187.3	1200	1200
2025-05-01	1194	1187.3	1200	1200
2025-04-01	1223.4	1223.1	1200	1200
2025-03-01	1209.1	1205.8	1200	1200
2025-02-01	1186.4	1177.2	1200	1200
2025-01-01	1186.4	1177.2	1200	1200
2024-12-01	1186.4	1177.2	1200	1200
2024-11-01	1186.4	1177.2	1200	1200
2024-10-01	1186.4	1177.2	1200	1200
2024-09-01	1186.4	1177.2	1200	1200
2024-08-01	1186.4	1177.2	1200	1200
2024-07-01	1186.4	1177.2	1200	1200
2024-06-01	1186.4	1177.2	1200	1200
2024-08-01	1186.4	1177.2	1200	1200
2024-04-01	1186.4	1177.2	1200	1200
2024-03-01	1186.4	1177.2	1200	1200
2024-02-01	1186.4	1177.2	1200	1200
2024-01-01	1186.4	1177.2	1200	1200
2023-12-01	1186.4	1177.2	1200	1200
2023-11-01	1186.4	1177.2	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	West Rand Trials 2025 (U16)	2025-09-06	2025-09-06	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
2	West Rand Women's Day Open 2025 (Rooks)	2025-08-09	2025-08-09	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
3	West Rand Open 2.0 2025 (Bishops)	2025-06-07	2025-06-07	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
4	FIDE in The West 2025 (Rooks)	2025-04-12	2025-04-12	Standard	West Rand (GWR)	5	4	0.5	Yes	Analysis
5	West Rand Juniors 2025 (U16)	2025-03-08	2025-03-08	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
6	2025 West Rand Open (Bishops)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	4	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	West Rand Trials 2025 (U16)	2025-09-06	2025-09-06	Standard	West Rand (GWR)	5	5	1.5	Yes	Analysis
2	West Rand Women's Day Open 2025 (Rooks)	2025-08-09	2025-08-09	Standard	West Rand (GWR)	5	5	2.5	Yes	Analysis
3	West Rand Open 2.0 2025 (Bishops)	2025-06-07	2025-06-07	Standard	West Rand (GWR)	5	5	4	Yes	Analysis
4	FIDE in The West 2025 (Rooks)	2025-04-12	2025-04-12	Standard	West Rand (GWR)	5	4	0.5	Yes	Analysis
5	West Rand Juniors 2025 (U16)	2025-03-08	2025-03-08	Standard	West Rand (GWR)	5	5	3	Yes	Analysis
6	2025 West Rand Open (Bishops)	2025-02-08	2025-02-08	Standard	West Rand (GWR)	5	4	3	Yes	Analysis
7	2019 Blou Bul (E)	2019-02-16	2019-02-16	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
8	2019 Tshwane Chess Registration Tournament (E)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
9	2018 Lardies Ope (F)	2018-10-27	2018-10-27	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament West Rand Open 2.0 2025				Tournament West Rand Women's Day Open 2025
		date 2025-06-07	rnd 5	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 0.5
		Opponent Botha, Z (Zoe)				Opponent Dlamini, S (Sabelo)
2	3	Tournament West Rand Open 2.0 2025				Tournament West Rand Open 2.0 2025
		date 2025-06-07	rnd 1	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Lebogang, K (Kutlwano)				Opponent Zikhali, F (Faith)
3	3	Tournament 2019 Blou Bul				Tournament 2025 West Rand Open
		date 2019-02-16	rnd 5	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Webb, A (Abbygail)				Opponent Perry-Fisher, L (Lily-Paige)

#	Games	Start				End
1	3	Tournament West Rand Open 2.0 2025				Tournament West Rand Women's Day Open 2025
		date 2025-06-07	rnd 5	type Standard	result 1	date 2025-08-09	rnd 2	type Standard	result 0.5
		Opponent Botha, Z (Zoe)				Opponent Dlamini, S (Sabelo)
2	3	Tournament West Rand Open 2.0 2025				Tournament West Rand Open 2.0 2025
		date 2025-06-07	rnd 1	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Lebogang, K (Kutlwano)				Opponent Zikhali, F (Faith)
3	3	Tournament 2019 Blou Bul				Tournament 2025 West Rand Open
		date 2019-02-16	rnd 5	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Webb, A (Abbygail)				Opponent Perry-Fisher, L (Lily-Paige)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament West Rand Open 2.0 2025				Tournament West Rand Open 2.0 2025
		date 2025-06-07	rnd 1	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Lebogang, K (Kutlwano)				Opponent Zikhali, F (Faith)
2	3	Tournament 2019 Blou Bul				Tournament 2025 West Rand Open
		date 2019-02-16	rnd 5	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Webb, A (Abbygail)				Opponent Perry-Fisher, L (Lily-Paige)
3	2	Tournament West Rand Open 2.0 2025				Tournament West Rand Women's Day Open 2025
		date 2025-06-07	rnd 5	type Standard	result 1	date 2025-08-09	rnd 1	type Standard	result 1
		Opponent Botha, Z (Zoe)				Opponent Songoane, S (Sifiso)

#	Games	Start				End
1	3	Tournament West Rand Open 2.0 2025				Tournament West Rand Open 2.0 2025
		date 2025-06-07	rnd 1	type Standard	result 1	date 2025-06-07	rnd 3	type Standard	result 1
		Opponent Lebogang, K (Kutlwano)				Opponent Zikhali, F (Faith)
2	3	Tournament 2019 Blou Bul				Tournament 2025 West Rand Open
		date 2019-02-16	rnd 5	type Standard	result 1	date 2025-02-08	rnd 3	type Standard	result 1
		Opponent Webb, A (Abbygail)				Opponent Perry-Fisher, L (Lily-Paige)
3	2	Tournament West Rand Open 2.0 2025				Tournament West Rand Women's Day Open 2025
		date 2025-06-07	rnd 5	type Standard	result 1	date 2025-08-09	rnd 1	type Standard	result 1
		Opponent Botha, Z (Zoe)				Opponent Songoane, S (Sifiso)

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	Viljoen ,J (Johandre)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
1	Viljoen ,J (Johandre)	2	1402.3	1189.8	2	1401.1	1189.8	0	0	0	0	0	0
2	Smit ,M (Mia)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	Smit ,M (Mia)	1	910	485	1	891.6	485	0	0	0	0	0	0
3	Corneelson ,R (Rygardt)	1	1	425	1	1	425	0	0	0	0	0	0
3	Corneelson ,R (Rygardt)	1	1202.3	1627.3	1	1203.2	1627.3	0	0	0	0	0	0
4	Lebogang ,K (Kutlwano)	1	1	425	1	1	425	0	0	0	0	0	0
4	Lebogang ,K (Kutlwano)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
5	Maheshi ,R (Rehaan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
5	Maheshi ,R (Rehaan)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
6	Van Heerden ,I (Inneke)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Van Heerden ,I (Inneke)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
7	Setlhodi ,O (Ofentse)	1	1	425	1	1	425	0	0	0	0	0	0
7	Setlhodi ,O (Ofentse)	1	1096.7	1521.7	1	1087.7	1521.7	0	0	0	0	0	0
8	Ramaboa ,T (Thando)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Ramaboa ,T (Thando)	1	1324	899	1	1317.6	899	0	0	0	0	0	0
9	Thomas ,J (Jenna)	1	1	425	1	1	425	0	0	0	0	0	0
9	Thomas ,J (Jenna)	1	1249.2	1674.2	1	1250.8	1674.2	0	0	0	0	0	0
10	Dlamini ,S (Sabelo)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Dlamini ,S (Sabelo)	1	1321.5	1321.5	1	1342.3	1321.5	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Marx, EF (Ethen Frederik)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms