Chess South Africa Ratings Database

PLAYER PAGE

Personal

Petlak, M (Marek)

Chess SA id

171029818

FIDE id

Date of birth

1971-06-02 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-01-08

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1407.4	1406	1229	1252
Raw rating	1407.4	1406	1229	1252
Weighted rating	1405.5	1403.9	1228.7	1252
Weighted performance	0	0	0	0
Floor	907.4	906	729	752
K-factor	32	32	36	36
Min/Max rating change allowed	123.4	123.6	159.1	154
Highest rating	1407.4 2024-02-01	1406 2024-02-01	1229 2024-02-01	1492 2022-01-01
Highest raw rating	1407.4 2024-02-01	1406 2024-02-01	1229 2024-02-01	1252 2024-02-01
Highest weighted rating	1401 2025-08-01	1399.1 2025-08-01	1228 2025-08-01	1252 2025-02-01
Highest weighted performance	1360.5 2022-01-01	1200 2024-02-01	1200 2024-02-01	1492 2022-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1407.4	1406	1229	1252
Analysis
Rating	1407.4	1406	1229	1252
Raw rating	1407.4	1406	1229	1252
Weighted rating	1405.5	1403.9	1228.7
Weighted performance	0	0	0
K-factor	32	32	36	36
Floor	907.4	906	729	752
Max/Min rating change allowed	123.4	123.6	159.1	154
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	1407.4	1406	1229	1252
New weighted rating	1406.8	1405.3	1228.9	1252
New weighted performance	0	0	0	0
Temp new rating	1407.4	1406	1229	1252
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1407.4	1406	1229	1252
New K-factor	32	32	36	36
New floor	907.4	906	729	752

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	7	0	0	7
	0	0	0	0
History	18	6	5	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
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	7	3	42.86	-60.7	1568.7	1508
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	7	3	42.86	-60.7	1568.7	1508

Date	Main	Standard	Rapid	Blitz
2025-09-30	1407.4	1406	1229	1252
2025-09-01	1407.4	1406	1229	1252
2025-08-01	1407.4	1406	1229	1252
2025-07-01	1407.4	1406	1229	1252
2025-06-01	1407.4	1406	1229	1252
2025-05-01	1407.4	1406	1229	1252
2025-04-01	1407.4	1406	1229	1252
2025-03-01	1407.4	1406	1229	1252
2025-02-01	1407.4	1406	1229	1252
2025-01-01	1407.4	1406	1229	1252
2024-12-01	1407.4	1406	1229	1252
2024-11-01	1407.4	1406	1229	1252
2024-10-01	1407.4	1406	1229	1252
2024-09-01	1407.4	1406	1229	1252
2024-08-01	1407.4	1406	1229	1252
2024-07-01	1407.4	1406	1229	1252
2024-06-01	1407.4	1406	1229	1252
2024-08-01	1407.4	1406	1229	1252
2024-04-01	1407.4	1406	1229	1252
2024-03-01	1407.4	1406	1229	1252
2024-02-01	1407.4	1406	1229	1252
2024-01-01	1407.4	1406	1229	1252
2023-12-01	1215.4	1200	1200	1252
2023-11-01	1215.4	1200	1200	1252

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	Mzansi Summer Rapid 2024 (B)	2024-10-26	2024-10-26	Rapid	Johannesburg Metro (GJM)	6	0	0	No	Analysis
2	Chessheroes Choo Choo Challenge 2022	2022-01-08	2022-01-08	Blitz	Tshwane (GTP)	7	7	3	Yes	Analysis

#	Games	Start				End
1	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 7	type Blitz	result 1	date 2022-01-08	rnd 7	type Blitz	result 1
		Opponent Van Heerden, D (Darryn)				Opponent Van Heerden, D (Darryn)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Du Plessis, CR (Christiaan)				Opponent Du Plessis, CR (Christiaan)
3	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 2	type Blitz	result 1
		Opponent Strydom, M (Mikayla)				Opponent Strydom, M (Mikayla)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 7	type Blitz	result 1	date 2022-01-08	rnd 7	type Blitz	result 1
		Opponent Van Heerden, D (Darryn)				Opponent Van Heerden, D (Darryn)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Du Plessis, CR (Christiaan)				Opponent Du Plessis, CR (Christiaan)
3	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 2	type Blitz	result 1
		Opponent Strydom, M (Mikayla)				Opponent Strydom, M (Mikayla)

#	Games	Start				End
1	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 7	type Blitz	result 1	date 2022-01-08	rnd 7	type Blitz	result 1
		Opponent Van Heerden, D (Darryn)				Opponent Van Heerden, D (Darryn)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Du Plessis, CR (Christiaan)				Opponent Du Plessis, CR (Christiaan)
3	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 2	type Blitz	result 1
		Opponent Strydom, M (Mikayla)				Opponent Strydom, M (Mikayla)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 7	type Blitz	result 1	date 2022-01-08	rnd 7	type Blitz	result 1
		Opponent Van Heerden, D (Darryn)				Opponent Van Heerden, D (Darryn)
2	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 5	type Blitz	result 1	date 2022-01-08	rnd 5	type Blitz	result 1
		Opponent Du Plessis, CR (Christiaan)				Opponent Du Plessis, CR (Christiaan)
3	1	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 2	type Blitz	result 1
		Opponent Strydom, M (Mikayla)				Opponent Strydom, M (Mikayla)

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	Strydom ,M (Mikayla)	1	1	425	0	0	0	0	0	0	1	1	425
1	Strydom ,M (Mikayla)	1	1143.6	1568.6	0	0	0	0	0	0	1	1200	1568.6
2	Mlahleki ,V (Vusimuzi)	1	0	-425	0	0	0	0	0	0	1	0	-425
2	Mlahleki ,V (Vusimuzi)	1	1940.5	1515.5	0	0	0	0	0	0	1	1891.7	1515.5
3	Reyneke ,L (Luke)	1	0	-425	0	0	0	0	0	0	1	0	-425
3	Reyneke ,L (Luke)	1	1479.1	1054.1	0	0	0	0	0	0	1	1213.2	1054.1
4	Van Heerden ,D (Darryn)	1	1	425	0	0	0	0	0	0	1	1	425
4	Van Heerden ,D (Darryn)	1	1200	1625	0	0	0	0	0	0	1	1200	1625
5	Du Plessis ,CR (Christiaan Roedolf)	1	1	425	0	0	0	0	0	0	1	1	425
5	Du Plessis ,CR (Christiaan Roedolf)	1	1519.2	1944.2	0	0	0	0	0	0	1	1520	1944.2
6	Wilken ,JB (Justin Barend)	1	0	-425	0	0	0	0	0	0	1	0	-425
6	Wilken ,JB (Justin Barend)	1	1813	1388	0	0	0	0	0	0	1	1965.8	1388
7	Swartz ,DS (David)	1	0	-425	0	0	0	0	0	0	1	0	-425
7	Swartz ,DS (David)	1	1885.4	1460.4	0	0	0	0	0	0	1	1853.2	1460.4

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Petlak, M (Marek)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms