Chess South Africa Ratings Database

PLAYER PAGE

Personal

Marks, J (Jon)

Chess SA id

1730096721

FIDE id

Date of birth

1973-11-14 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2018-02-03

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1374.3	1300	1916	1300
Raw rating	1374.3	1300	1916	1300
Weighted rating	1374.1	1299.7	1914.2	1299.7
Weighted performance	0	0	0	0
Floor	874.3	800	1416	800
K-factor	36	36	24	36
Min/Max rating change allowed	129.4	143.8	59.8	143.8
Highest rating	1980.7 2018-02-01	1300 2024-02-01	2108.1 2018-02-01	1300 2024-02-01
Highest raw rating	1374.3 2024-02-01	1300 2024-02-01	1916 2024-02-01	1300 2024-02-01
Highest weighted rating	1372 2025-08-01	1296.7 2025-08-01	1897.7 2025-08-01	1296.7 2025-08-01
Highest weighted performance	1980.7 2018-02-01	1200 2024-02-01	2108.1 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1374.3	1300	1916	1300
Analysis
Rating	1374.3	1300	1916	1300
Raw rating	1374.3	1300	1916	1300
Weighted rating	1374.1	1299.7	1914.2
Weighted performance	0	0	0
K-factor	36	36	24	36
Floor	874.3	800	1416	800
Max/Min rating change allowed	129.4	143.8	59.8	143.8
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	1374.3	1300	1916	1300
New weighted rating	1374.3	1300	1916	1300
New weighted performance	0	0	0	0
Temp new rating	1374.3	1300	1916	1300
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1374.3	1300	1916	1300
New K-factor	36	36	24	36
New floor	874.3	800	1416	800

Item	Main	Rapid
	0	0
	0	0
	0	0
	0	0
	0	0
	0	0
History	6	6

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
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	6	5	83.33	283.3	1800.2	2083.5
Standard	0	0	0	0	0	0
Rapid	6	5	83.33	283.3	1800.2	2083.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1374.3	1300	1916	1300
2025-09-30	1374.3	1300	1916	1300
2025-09-01	1374.3	1300	1916	1300
2025-08-01	1374.3	1300	1916	1300
2025-07-01	1374.3	1300	1916	1300
2025-06-01	1374.3	1300	1916	1300
2025-05-01	1374.3	1300	1916	1300
2025-04-01	1374.3	1300	1916	1300
2025-03-01	1374.3	1300	1916	1300
2025-02-01	1374.3	1300	1916	1300
2025-01-01	1374.3	1300	1916	1300
2024-12-01	1374.3	1300	1916	1300
2024-11-01	1374.3	1300	1916	1300
2024-10-01	1374.3	1300	1916	1300
2024-09-01	1374.3	1300	1916	1300
2024-08-01	1374.3	1300	1916	1300
2024-07-01	1374.3	1300	1916	1300
2024-09-01	1374.3	1300	1916	1300
2024-05-01	1374.3	1300	1916	1300
2024-04-01	1374.3	1300	1916	1300
2024-03-01	1374.3	1300	1916	1300
2024-02-01	1374.3	1300	1916	1300
2024-01-01	1374.3	1300	1916	1300
2023-12-01	1304.2	1200	1365.8	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	Mandela Drakenstein Mgt Area Rapid Chess 2018 (Open)	2018-02-03	2018-02-03	Rapid	Cape Winelands (WCW)	7	6	5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 4	type Rapid	result 1	date 2018-02-03	rnd 6	type Rapid	result 1
		Opponent Brown, SC (Shaun)				Opponent Klein, BA (Bernand)
2	2	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 1	type Rapid	result 1	date 2018-02-03	rnd 2	type Rapid	result 1
		Opponent Matthys, A (Allistair)				Opponent Willenberg, A (Athon)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 4	type Rapid	result 1	date 2018-02-03	rnd 6	type Rapid	result 1
		Opponent Brown, SC (Shaun)				Opponent Klein, BA (Bernand)
2	2	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 1	type Rapid	result 1	date 2018-02-03	rnd 2	type Rapid	result 1
		Opponent Matthys, A (Allistair)				Opponent Willenberg, A (Athon)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 4	type Rapid	result 1	date 2018-02-03	rnd 6	type Rapid	result 1
		Opponent Brown, SC (Shaun)				Opponent Klein, BA (Bernand)
2	2	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 1	type Rapid	result 1	date 2018-02-03	rnd 2	type Rapid	result 1
		Opponent Matthys, A (Allistair)				Opponent Willenberg, A (Athon)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 4	type Rapid	result 1	date 2018-02-03	rnd 6	type Rapid	result 1
		Opponent Brown, SC (Shaun)				Opponent Klein, BA (Bernand)
2	2	Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018				Tournament Mandela Drakenstein Mgt Area Rapid Chess 2018
		date 2018-02-03	rnd 1	type Rapid	result 1	date 2018-02-03	rnd 2	type Rapid	result 1
		Opponent Matthys, A (Allistair)				Opponent Willenberg, A (Athon)

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	Willenberg ,A (Athon)	1	1	425	0	0	0	1	1	425	0	0	0
1	Willenberg ,A (Athon)	1	1836.4	2261.4	0	0	0	1	1836.4	2261.4	0	0	0
2	Klein ,BA (Bernand Angelo)	1	1	425	0	0	0	1	1	425	0	0	0
2	Klein ,BA (Bernand Angelo)	1	1997	2422	0	0	0	1	2012.3	2422	0	0	0
3	Brown ,SC (Shaun Christo)	1	1	425	0	0	0	1	1	425	0	0	0
3	Brown ,SC (Shaun Christo)	1	1821.3	2246.3	0	0	0	1	1846.8	2246.3	0	0	0
4	James ,M (Michael)	1	0	-425	0	0	0	1	0	-425	0	0	0
4	James ,M (Michael)	1	2029	1604	0	0	0	1	2026.4	1604	0	0	0
5	September ,V (Veroe)	1	1	425	0	0	0	1	1	425	0	0	0
5	September ,V (Veroe)	1	1805.5	2230.5	0	0	0	1	1805.5	2230.5	0	0	0
6	Matthys ,A (Allistair)	1	1	425	0	0	0	1	1	425	0	0	0
6	Matthys ,A (Allistair)	1	1312	1737	0	0	0	1	1412.5	1737	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

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PLAYER PAGE

Personal

Marks, J (Jon)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms