Chess South Africa Ratings Database

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Personal

Marais, CH (Coenraad Hendrik)

Chess SA id

191020705

FIDE id

Date of birth

1991-08-09 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-12-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	2082.7	2081.3	1925.6	1922.6
Raw rating	2082.7	2081.3	1925.6	1922.6
Weighted rating	2081.9	2079.9	1925.5	1922.6
Weighted performance	1487.6	1495.9	0	0
Floor	1585.9	1583.1	1425.6	1422.6
K-factor	20	20	24	24
Min/Max rating change allowed	47.1	47.2	59	59.2
Highest rating	2085.9 2024-02-01	2083.1 2024-02-01	1925.6 2024-02-01	1922.6 2024-02-01
Highest raw rating	2085.9 2024-02-01	2083.1 2024-02-01	1925.6 2024-02-01	1922.6 2024-02-01
Highest weighted rating	2080.5 2025-08-01	2078.5 2025-08-01	1925.4 2025-08-01	1922.6 2025-08-01
Highest weighted performance	2045.7 2020-01-01	2052.7 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	2082.7	2081.3	1925.6	1922.6
Analysis
Rating	2082.7	2081.3	1925.6	1922.6
Raw rating	2082.7	2081.3	1925.6	1922.6
Weighted rating	2081.9	2079.9	1925.5
Weighted performance	1487.6	1495.9	0
K-factor	20	20	24	24
Floor	1585.9	1583.1	1425.6	1422.6
Max/Min rating change allowed	47.1	47.2	59	59.2
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	2082.7	2081.3	1925.6	1922.6
New weighted rating	2082.3	2080.3	1925.5	1922.6
New weighted performance	1486.9	1495.2	0	0
Temp new rating	2082.7	2081.3	1925.6	1922.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	2082.7	2081.3	1925.6	1922.6
New K-factor	20	20	24	24
New floor	1585.9	1583.1	1425.6	1422.6

Item	Main	Standard
	0	0
	0	0
	9	9
	0	0
	7	7
	5	5
History	260	260

Games since
	Main 9	Standard 9		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	57	39.5	69.3	164	1885	2049
Standard	57	39.5	69.3	164	1885	2049
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	2082.7	2081.3	1925.6	1922.6
2025-09-01	2082.7	2081.3	1925.6	1922.6
2025-08-01	2082.7	2081.3	1925.6	1922.6
2025-07-01	2082.7	2081.3	1925.6	1922.6
2025-06-01	2082.7	2081.3	1925.6	1922.6
2025-05-01	2082.7	2081.3	1925.6	1922.6
2025-04-01	2082.7	2081.3	1925.6	1922.6
2025-03-01	2082.7	2081.3	1925.6	1922.6
2025-02-01	2082.7	2081.3	1925.6	1922.6
2025-01-01	2082.7	2081.3	1925.6	1922.6
2024-12-01	2071.6	2066.7	1925.6	1922.6
2024-11-01	2071.6	2066.7	1925.6	1922.6
2024-10-01	2085.9	2083.1	1925.6	1922.6
2024-09-01	2085.9	2083.1	1925.6	1922.6
2024-08-01	2085.9	2083.1	1925.6	1922.6
2024-07-01	2085.9	2083.1	1925.6	1922.6
2024-06-01	2085.9	2083.1	1925.6	1922.6
2024-08-01	2085.9	2083.1	1925.6	1922.6
2024-04-01	2085.9	2083.1	1925.6	1922.6
2024-03-01	2085.9	2083.1	1925.6	1922.6
2024-02-01	2085.9	2083.1	1925.6	1922.6
2024-01-01	2085.9	2083.1	1925.6	1922.6
2023-12-01	2019.4	2024.9	1920	1920
2023-11-01	2019.4	2024.9	1920	1920

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	Gauteng Inter-Region at UJ 2024 (Adult+Senior)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
2	Laerskool Doringkloof Primary Open Chess Tournament 2024 (A)	2024-10-19	2024-10-19	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
3	Ekurhuleni Chess Open 2022 (A)	2022-01-07	2022-01-09	Standard	Ekurhuleni (GE)	7	7	5.5	Yes	Analysis
4	2021 Gauteng North Open Tournament (A)	2021-08-28	2021-08-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
5	2019 Inter Region Chess Championships	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
6	2019 Capablanca Chess Festival (Swiss A)	2019-04-19	2019-04-21	Standard	Tshwane (GTP)	7	7	6.5	Yes	Analysis
7	2019 Waterkloof Open (A)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
8	2019 Piet Robbertse (A)	2019-02-01	2019-02-03	Standard	Tshwane (GTP)	5	5	4.5	Yes	Analysis
9	2018 Capablanca Swiss (A)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	6	Yes	Analysis
10	South African Inter Regional Championships 2017	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	6	0.5	Yes	Analysis

#	Games	Start				End
1	14	Tournament 2019 Waterkloof Open				Tournament 2019 Inter Region Chess Championships
		date 2019-03-02	rnd 3	type Standard	result 1	date 2020-01-10	rnd 4	type Standard	result 0.5
		Opponent Prinsloo, MP (Marthinus)				Opponent Mlahleki, V (Vusimuzi)
2	8	Tournament 2018 Capablanca Swiss				Tournament 2019 Waterkloof Open
		date 2018-04-28	rnd 6	type Standard	result 1	date 2019-03-02	rnd 1	type Standard	result 1
		Opponent Booysen, AM (Antonio)				Opponent Nguyen, MT (Minh)
3	5	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-07	rnd 1	type Standard	result 0.5	date 2024-12-08	rnd 5	type Standard	result 1
		Opponent Yoko, C (Christopher David)				Opponent Egeonu, C (Chigozie)

#	Games	Start				End
1	14	Tournament 2019 Waterkloof Open				Tournament 2019 Inter Region Chess Championships
		date 2019-03-02	rnd 3	type Standard	result 1	date 2020-01-10	rnd 4	type Standard	result 0.5
		Opponent Prinsloo, MP (Marthinus)				Opponent Mlahleki, V (Vusimuzi)
2	8	Tournament 2018 Capablanca Swiss				Tournament 2019 Waterkloof Open
		date 2018-04-28	rnd 6	type Standard	result 1	date 2019-03-02	rnd 1	type Standard	result 1
		Opponent Booysen, AM (Antonio)				Opponent Nguyen, MT (Minh)
3	5	Tournament Gauteng Inter-Region at UJ 2024				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-12-07	rnd 1	type Standard	result 0.5	date 2024-12-08	rnd 5	type Standard	result 1
		Opponent Yoko, C (Christopher David)				Opponent Egeonu, C (Chigozie)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament 2019 Capablanca Chess Festival				Tournament 2019 Inter Region Chess Championships
		date 2019-04-20	rnd 5	type Standard	result 1	date 2020-01-10	rnd 3	type Standard	result 1
		Opponent Jacobs, CL (Cavan)				Opponent Mwale, J (Joseph)
2	6	Tournament 2019 Waterkloof Open				Tournament 2019 Capablanca Chess Festival
		date 2019-03-02	rnd 3	type Standard	result 1	date 2019-04-20	rnd 3	type Standard	result 1
		Opponent Prinsloo, MP (Marthinus)				Opponent Lee, KI (Kaizer)
3	4	Tournament 2018 Capablanca Swiss				Tournament 2019 Piet Robbertse
		date 2018-04-28	rnd 6	type Standard	result 1	date 2019-02-02	rnd 2	type Standard	result 1
		Opponent Booysen, AM (Antonio)				Opponent Nene, TH (Themba)

#	Games	Start				End
1	6	Tournament 2019 Capablanca Chess Festival				Tournament 2019 Inter Region Chess Championships
		date 2019-04-20	rnd 5	type Standard	result 1	date 2020-01-10	rnd 3	type Standard	result 1
		Opponent Jacobs, CL (Cavan)				Opponent Mwale, J (Joseph)
2	6	Tournament 2019 Waterkloof Open				Tournament 2019 Capablanca Chess Festival
		date 2019-03-02	rnd 3	type Standard	result 1	date 2019-04-20	rnd 3	type Standard	result 1
		Opponent Prinsloo, MP (Marthinus)				Opponent Lee, KI (Kaizer)
3	4	Tournament 2018 Capablanca Swiss				Tournament 2019 Piet Robbertse
		date 2018-04-28	rnd 6	type Standard	result 1	date 2019-02-02	rnd 2	type Standard	result 1
		Opponent Booysen, AM (Antonio)				Opponent Nene, TH (Themba)

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	Mnguni ,JD (Jakob Dumisani)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Mnguni ,JD (Jakob Dumisani)	3	2181.5	2181.5	3	2189.4	2181.5	0	0	0	0	0	0
2	Moche ,J (Johannes)	2	2	425	2	2	425	0	0	0	0	0	0
2	Moche ,J (Johannes)	2	1658	2083	2	1665.8	2083	0	0	0	0	0	0
3	Jacobs ,CL (Cavan Leo)	2	2	425	2	2	425	0	0	0	0	0	0
3	Jacobs ,CL (Cavan Leo)	2	1691	2116	2	1689.6	2116	0	0	0	0	0	0
4	Claassen ,J (Jean-Daniel)	2	1	0	2	1	0	0	0	0	0	0	0
4	Claassen ,J (Jean-Daniel)	2	1605.1	1605.1	2	1606.9	1605.1	0	0	0	0	0	0
5	Nel ,A (Andre)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
5	Nel ,A (Andre)	2	1990.8	2203.2	2	1979.3	2203.2	0	0	0	0	0	0
6	Lekgau ,M (Mothupi)	2	1	0	2	1	0	0	0	0	0	0	0
6	Lekgau ,M (Mothupi)	2	1963.4	1963.4	2	1968.4	1963.4	0	0	0	0	0	0
7	Cronwright ,S (Shaun)	1	1	425	1	1	425	0	0	0	0	0	0
7	Cronwright ,S (Shaun)	1	1748.3	2173.3	1	1747.6	2173.3	0	0	0	0	0	0
8	Mlahleki ,V (Vusimuzi)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Mlahleki ,V (Vusimuzi)	1	2019.4	2019.4	1	2020.1	2019.4	0	0	0	0	0	0
9	Vermaak ,AC (Ashley Christopher)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Vermaak ,AC (Ashley Christopher)	1	1831.9	1406.9	1	1842.3	1406.9	0	0	0	0	0	0
10	Mkhaliphi ,JT (John Themba)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Mkhaliphi ,JT (John Themba)	1	1781.5	1356.5	1	1753	1356.5	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

Marais, CH (Coenraad Hendrik)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms