Chess South Africa Ratings Database

PLAYER PAGE

Personal

Marais, J (Johann)

Chess SA id

103020761

FIDE id

Date of birth

2003-09-18 (Adult)

Gender

Male

Region

Bojanala Platina (NBR)

Citizen

RSA

Titles

Chess SA registered

Last active game

2020-01-11

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	994.1	997.4	862.6	862.6
Raw rating	994.1	997.4	862.6	862.6
Weighted rating	994.1	997.4	862.6	862.6
Weighted performance	0	0	0	0
Floor	500	500	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	222.3	221.3	268.2	268.2
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2024-02-01	1200 2024-02-01
Highest raw rating	994.1 2024-02-01	997.4 2024-02-01	862.6 2024-02-01	862.6 2024-02-01
Highest weighted rating	994.1 2024-11-01	997.4 2024-11-01	862.6 2024-11-01	862.6 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	994.1	997.4	862.6	862.6
Analysis
Rating	994.1	997.4	862.6	862.6
Raw rating	994.1	997.4	862.6	862.6
Weighted rating	994.1	997.4	862.6
Weighted performance	0	0	0
K-factor	40	40	40	40
Floor	500	500	500	500
Max/Min rating change allowed	222.3	221.3	268.2	268.2
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	994.1	997.4	862.6	862.6
New weighted rating	994.1	997.4	862.6	862.6
New weighted performance	0	0	0	0
Temp new rating	994.1	997.4	862.6	862.6
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	994.1	997.4	862.6	862.6
New K-factor	40	40	40	40
New floor	500	500	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	180	175	5

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Bojanala Platina (NBR)
Province	Northwest (NW)
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	24	13	54.17	35.4	938.5	974
Standard	24	13	54.17	35.4	938.5	974
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	994.1	997.4	862.6	862.6
2025-09-01	994.1	997.4	862.6	862.6
2025-08-01	994.1	997.4	862.6	862.6
2025-07-01	994.1	997.4	862.6	862.6
2025-06-01	994.1	997.4	862.6	862.6
2025-05-01	994.1	997.4	862.6	862.6
2025-04-01	994.1	997.4	862.6	862.6
2025-03-01	994.1	997.4	862.6	862.6
2025-02-01	994.1	997.4	862.6	862.6
2025-01-01	994.1	997.4	862.6	862.6
2024-12-01	994.1	997.4	862.6	862.6
2024-11-01	994.1	997.4	862.6	862.6
2024-10-01	994.1	997.4	862.6	862.6
2024-09-01	994.1	997.4	862.6	862.6
2024-08-01	994.1	997.4	862.6	862.6
2024-07-01	994.1	997.4	862.6	862.6
2024-06-01	994.1	997.4	862.6	862.6
2024-08-01	994.1	997.4	862.6	862.6
2024-04-01	994.1	997.4	862.6	862.6
2024-03-01	994.1	997.4	862.6	862.6
2024-02-01	994.1	997.4	862.6	862.6
2024-01-01	994.1	997.4	862.6	862.6
2023-12-01	994.1	997.4	862.6	862.6
2023-11-01	994.1	997.4	862.6	862.6

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 South African Top Schools Team Championships (U15+U17 Open)	2020-01-10	2020-01-11	Standard	4 Knights (4K)	5	3	2	Yes	Analysis
2	South African Junior Team Championships 2018 (U16D)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	6	5	Yes	Analysis
3	Laerskool Rustenburg 2018 (B)	2018-03-24	2018-03-24	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
4	Hoerskool Brits 2018 (U16)	2018-03-17	2018-03-17	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis
5	Laerskool Rustenburg Noord Primary 2018 (B)	2018-02-24	2018-02-24	Standard	Bojanala Platina (NBR)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2018				Tournament 2019 South African Top Schools Team Championships
		date 2018-12-19	rnd 6	type Standard	result 1	date 2020-01-10	rnd 1	type Standard	result 1
		Opponent Warland, G (Graeme)				Opponent Rasetlola, O (Oageng)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Finnis, B (Bongani)				Opponent Mthembu, S (Siyabulela)
3	2	Tournament Hoerskool Brits 2018				Tournament Hoerskool Brits 2018
		date 2018-03-17	rnd 2	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Mans, AJ (Andries)				Opponent Du Preez, L (Lienke)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2018				Tournament 2019 South African Top Schools Team Championships
		date 2018-12-19	rnd 6	type Standard	result 1	date 2020-01-10	rnd 1	type Standard	result 1
		Opponent Warland, G (Graeme)				Opponent Rasetlola, O (Oageng)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Finnis, B (Bongani)				Opponent Mthembu, S (Siyabulela)
3	2	Tournament Hoerskool Brits 2018				Tournament Hoerskool Brits 2018
		date 2018-03-17	rnd 2	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Mans, AJ (Andries)				Opponent Du Preez, L (Lienke)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2018				Tournament 2019 South African Top Schools Team Championships
		date 2018-12-19	rnd 6	type Standard	result 1	date 2020-01-10	rnd 1	type Standard	result 1
		Opponent Warland, G (Graeme)				Opponent Rasetlola, O (Oageng)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Finnis, B (Bongani)				Opponent Mthembu, S (Siyabulela)
3	2	Tournament Hoerskool Brits 2018				Tournament Hoerskool Brits 2018
		date 2018-03-17	rnd 2	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Mans, AJ (Andries)				Opponent Du Preez, L (Lienke)

#	Games	Start				End
1	3	Tournament South African Junior Team Championships 2018				Tournament 2019 South African Top Schools Team Championships
		date 2018-12-19	rnd 6	type Standard	result 1	date 2020-01-10	rnd 1	type Standard	result 1
		Opponent Warland, G (Graeme)				Opponent Rasetlola, O (Oageng)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-16	rnd 1	type Standard	result 1	date 2018-12-17	rnd 3	type Standard	result 1
		Opponent Finnis, B (Bongani)				Opponent Mthembu, S (Siyabulela)
3	2	Tournament Hoerskool Brits 2018				Tournament Hoerskool Brits 2018
		date 2018-03-17	rnd 2	type Standard	result 1	date 2018-03-17	rnd 3	type Standard	result 1
		Opponent Mans, AJ (Andries)				Opponent Du Preez, L (Lienke)

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	Serobe ,R (Reatlehile)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Serobe ,R (Reatlehile)	2	919	494	2	924.6	494	0	0	0	0	0	0
2	Finnis ,B (Bongani)	1	1	425	1	1	425	0	0	0	0	0	0
2	Finnis ,B (Bongani)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Nayagar ,V (Veshaan)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Nayagar ,V (Veshaan)	1	1382	957	1	1385.8	957	0	0	0	0	0	0
4	Treadwell ,N (Nadia)	1	1	425	1	1	425	0	0	0	0	0	0
4	Treadwell ,N (Nadia)	1	830.4	1255.4	1	828	1255.4	0	0	0	0	0	0
5	Du Preez ,W (Wessel)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Du Preez ,W (Wessel)	1	731	306	1	731	306	0	0	0	0	0	0
6	Matomane ,L (Landa)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Matomane ,L (Landa)	1	891.1	466.1	1	897.6	466.1	0	0	0	0	0	0
7	Swart ,MD (Michiel De Lange)	1	1	425	1	1	425	0	0	0	0	0	0
7	Swart ,MD (Michiel De Lange)	1	888.5	1313.5	1	888.5	1313.5	0	0	0	0	0	0
8	Moroke ,T (Thari)	1	1	425	1	1	425	0	0	0	0	0	0
8	Moroke ,T (Thari)	1	667.2	1092.2	1	667.2	1092.2	0	0	0	0	0	0
9	Warland ,G (Graeme)	1	1	425	1	1	425	0	0	0	0	0	0
9	Warland ,G (Graeme)	1	693.9	1118.9	1	702.8	1118.9	0	0	0	0	0	0
10	Mans ,AJ (Andries)	1	1	425	1	1	425	0	0	0	0	0	0
10	Mans ,AJ (Andries)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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Statistics

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PLAYER PAGE

Personal

Marais, J (Johann)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms