Chess South Africa Ratings Database

PLAYER PAGE

Personal

Pretorius, WJM (Martienus)

Chess SA id

105048022

FIDE id

Date of birth

2005-03-05 (Adult)

Gender

Male

Region

Ekurhuleni (GE)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-03-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1145.7	1155.2	674.6	594.2
Raw rating	1145.7	1155.2	674.6	594.2
Weighted rating	1145.7	1155.2	674.6	594.2
Weighted performance	742.3	737.2	0	0
Floor	645.7	670	500	500
K-factor	40	40	40	40
Min/Max rating change allowed	179.2	176.7	350.5	393.1
Highest rating	1200 2024-11-01	1200 2024-11-01	1200 2018-02-01	1200 2024-02-01
Highest raw rating	1145.7 2024-02-01	1170 2022-02-01	674.6 2024-02-01	594.2 2024-02-01
Highest weighted rating	1145.7 2024-11-01	1170 2024-11-01	674.6 2024-11-01	594.2 2024-11-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1200 2018-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1145.7	1155.2	674.6	594.2
Analysis
Rating	1145.7	1155.2	674.6	594.2
Raw rating	1145.7	1155.2	674.6	594.2
Weighted rating	1145.7	1155.2	674.6
Weighted performance	742.3	737.2	0
K-factor	40	40	40	40
Floor	645.7	670	500	500
Max/Min rating change allowed	179.2	176.7	350.5	393.1
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	1145.7	1155.2	674.6	594.2
New weighted rating	1145.7	1155.2	674.6	594.2
New weighted performance	741.9	736.8	0	0
Temp new rating	1145.7	1155.2	674.6	594.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1145.7	1155.2	674.6	594.2
New K-factor	40	40	40	40
New floor	645.7	670	500	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	10	10	0
	15	15	0
	4	0	4
History	282	234	48

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Ekurhuleni (GE)
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	93	47.5	51.08	9.1	1032	1041.1
Standard	84	44.5	52.98	25.3	1027.5	1052.8
Rapid	9	3	33.33	-141.7	1073.6	931.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1145.7	1155.2	674.6	594.2
2025-09-01	1145.7	1155.2	674.6	594.2
2025-08-01	1145.7	1155.2	674.6	594.2
2025-07-01	1145.7	1155.2	674.6	594.2
2025-06-01	1145.7	1155.2	674.6	594.2
2025-05-01	1145.7	1155.2	674.6	594.2
2025-04-01	1145.7	1155.2	674.6	594.2
2025-03-01	1145.7	1155.2	674.6	594.2
2025-02-01	1145.7	1155.2	674.6	594.2
2025-01-01	1145.7	1155.2	674.6	594.2
2024-12-01	1145.7	1155.2	674.6	594.2
2024-11-01	1145.7	1155.2	674.6	594.2
2024-10-01	1145.7	1155.2	674.6	594.2
2024-09-01	1145.7	1155.2	674.6	594.2
2024-08-01	1145.7	1155.2	674.6	594.2
2024-07-01	1145.7	1155.2	674.6	594.2
2024-06-01	1145.7	1155.2	674.6	594.2
2024-08-01	1145.7	1155.2	674.6	594.2
2024-04-01	1145.7	1155.2	674.6	594.2
2024-03-01	1145.7	1155.2	674.6	594.2
2024-02-01	1145.7	1155.2	674.6	594.2
2024-01-01	1145.7	1155.2	674.6	594.2
2023-12-01	1145.7	1155.2	674.6	594.2
2023-11-01	1145.7	1155.2	674.6	594.2

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	2023 Afrikaans Ho�r Seunskool Open Chess Tournament (C)	2023-03-04	2023-03-04	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
2	Grey College Team Championship 2023 (B)	2023-02-03	2023-02-04	Standard	Mangaung (FMB)	5	5	3	Yes	Analysis
3	2022 Gauteng Schools Team Championships (U17 Open)	2022-08-26	2022-08-26	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
4	Grey College Team Championship 2022 (A)	2022-02-18	2022-02-19	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
5	Ekurhuleni Chess Open 2022 (C)	2022-01-08	2022-01-08	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
6	2021 Affies Interhuis	2021-10-28	2021-10-28	Rapid	Tshwane (GTP)	5	4	1	Yes	Analysis
7	2019 Swartkop Open (C)	2019-06-15	2019-06-15	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
8	South African Junior Team Championships 2018 (U14E)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
9	Inter Region GE vs JHB Metro 2018 (U14E)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	3	0	Yes	Analysis
10	Ekurhuleni Open 2018 (C)	2018-08-18	2018-08-18	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
11	Witfield Open 2018 (C)	2018-07-21	2018-07-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
12	2018 Swartkop Open (D)	2018-06-23	2018-06-23	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
13	Ekurhuleni Trials 3 2018 (U14)	2018-06-16	2018-06-16	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
14	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
15	Ekurhuleni Trials 2 2018 (U14)	2018-04-21	2018-04-21	Standard	Ekurhuleni (GE)	5	5	3	Yes	Analysis
16	Human Rights Day Open 2018 (C)	2018-03-21	2018-03-21	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
17	Ekurhuleni Trials 1 2018 (U14)	2018-03-10	2018-03-10	Standard	Ekurhuleni (GE)	5	5	1	Yes	Analysis
18	Brakpan Open 2018 (C)	2018-02-24	2018-02-24	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
19	Johan Jurgens Open 2018 (C)	2018-01-26	2018-01-27	Standard	Ekurhuleni (GE)	6	4	4	Yes	Analysis

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 3 2018				Tournament 2018 Swartkop Open
		date 2018-06-16	rnd 5	type Standard	result 1	date 2018-06-23	rnd 5	type Standard	result 1
		Opponent Bothma, L (Liandri)				Opponent Swart, W (Wian)
2	5	Tournament 2019 Swartkop Open				Tournament 2021 Affies Interhuis
		date 2019-06-15	rnd 2	type Standard	result 1	date 2021-10-28	rnd 2	type Rapid	result 1
		Opponent Grootboom, C (Chante)				Opponent Fuhri, R (Ruben)
3	4	Tournament Johan Jurgens Open 2018				Tournament Johan Jurgens Open 2018
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-01-27	rnd 6	type Standard	result 1
		Opponent Sweeting, S (Sarah)				Opponent Olivier, C (Coenraad)

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 3 2018				Tournament 2018 Swartkop Open
		date 2018-06-16	rnd 5	type Standard	result 1	date 2018-06-23	rnd 5	type Standard	result 1
		Opponent Bothma, L (Liandri)				Opponent Swart, W (Wian)
2	5	Tournament 2019 Swartkop Open				Tournament Ekurhuleni Chess Open 2022
		date 2019-06-15	rnd 2	type Standard	result 1	date 2022-01-08	rnd 1	type Standard	result 1
		Opponent Grootboom, C (Chante)				Opponent De Lange, C (Cheleike)
3	4	Tournament Johan Jurgens Open 2018				Tournament Johan Jurgens Open 2018
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-01-27	rnd 6	type Standard	result 1
		Opponent Sweeting, S (Sarah)				Opponent Olivier, C (Coenraad)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2021 Affies Interhuis
		date 2018-05-05	rnd 5	type Rapid	result 1	date 2021-10-28	rnd 2	type Rapid	result 1
		Opponent Schultz, R (Ryno)				Opponent Fuhri, R (Ruben)
2	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent Strydom, L (Lian)				Opponent Strydom, L (Lian)

No games found.

#	Games	Start				End

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 3 2018				Tournament 2018 Swartkop Open
		date 2018-06-16	rnd 5	type Standard	result 1	date 2018-06-23	rnd 5	type Standard	result 1
		Opponent Bothma, L (Liandri)				Opponent Swart, W (Wian)
2	5	Tournament 2019 Swartkop Open				Tournament 2021 Affies Interhuis
		date 2019-06-15	rnd 2	type Standard	result 1	date 2021-10-28	rnd 2	type Rapid	result 1
		Opponent Grootboom, C (Chante)				Opponent Fuhri, R (Ruben)
3	4	Tournament Johan Jurgens Open 2018				Tournament Johan Jurgens Open 2018
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-01-27	rnd 6	type Standard	result 1
		Opponent Sweeting, S (Sarah)				Opponent Olivier, C (Coenraad)

#	Games	Start				End
1	6	Tournament Ekurhuleni Trials 3 2018				Tournament 2018 Swartkop Open
		date 2018-06-16	rnd 5	type Standard	result 1	date 2018-06-23	rnd 5	type Standard	result 1
		Opponent Bothma, L (Liandri)				Opponent Swart, W (Wian)
2	5	Tournament 2019 Swartkop Open				Tournament Ekurhuleni Chess Open 2022
		date 2019-06-15	rnd 2	type Standard	result 1	date 2022-01-08	rnd 1	type Standard	result 1
		Opponent Grootboom, C (Chante)				Opponent De Lange, C (Cheleike)
3	4	Tournament Johan Jurgens Open 2018				Tournament Johan Jurgens Open 2018
		date 2018-01-27	rnd 3	type Standard	result 1	date 2018-01-27	rnd 6	type Standard	result 1
		Opponent Sweeting, S (Sarah)				Opponent Olivier, C (Coenraad)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2021 Affies Interhuis
		date 2018-05-05	rnd 5	type Rapid	result 1	date 2021-10-28	rnd 2	type Rapid	result 1
		Opponent Schultz, R (Ryno)				Opponent Fuhri, R (Ruben)
2	1	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 2	type Rapid	result 1
		Opponent Strydom, L (Lian)				Opponent Strydom, L (Lian)

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	Jones ,E (Ethan)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
1	Jones ,E (Ethan)	3	965.4	1107.1	3	942.9	1107.1	0	0	0	0	0	0
2	Gibbens ,JJW (James)	3	0	-425	2	0	-425	1	0	-425	0	0	0
2	Gibbens ,JJW (James)	3	937	512	2	929.2	512	1	775.8	512	0	0	0
3	Deans ,J (Jarred)	2	1	0	2	1	0	0	0	0	0	0	0
3	Deans ,J (Jarred)	2	630.1	630.1	2	626.2	630.1	0	0	0	0	0	0
4	Evans ,R (Robyn)	2	1	0	2	1	0	0	0	0	0	0	0
4	Evans ,R (Robyn)	2	724.4	724.4	2	657	724.4	0	0	0	0	0	0
5	Laeke ,N (Nahom)	1	1	425	1	1	425	0	0	0	0	0	0
5	Laeke ,N (Nahom)	1	671.2	1096.2	1	705.6	1096.2	0	0	0	0	0	0
6	Serahanye ,K (Khotso)	1	1	425	1	1	425	0	0	0	0	0	0
6	Serahanye ,K (Khotso)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Grahan ,C (Chie-Ann)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Grahan ,C (Chie-Ann)	1	1119.7	1119.7	1	1111.6	1119.7	0	0	0	0	0	0
8	Swart ,W (Wian)	1	1	425	1	1	425	0	0	0	0	0	0
8	Swart ,W (Wian)	1	713.5	1138.5	1	707.8	1138.5	0	0	0	0	0	0
9	Govender ,P (Pranau)	1	1	425	1	1	425	0	0	0	0	0	0
9	Govender ,P (Pranau)	1	990.2	1415.2	1	987.5	1415.2	0	0	0	0	0	0
10	Human ,PMB (Petrus Marthinus)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Human ,PMB (Petrus Marthinus)	1	1119.1	694.1	1	1113.9	694.1	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

Pretorius, WJM (Martienus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms