Chess South Africa Ratings Database

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Personal

Marais, W (Willie)

Chess SA id

1650107481

FIDE id

Date of birth

1965-08-03 (Adult)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-07-14

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1314.9	1300	1371.8	1274.3
Raw rating	1314.9	1300	1371.8	1274.3
Weighted rating	1314.6	1299	1371	1273.7
Weighted performance	0	0	0	0
Floor	814.9	800	871.8	774.3
K-factor	36	36	36	36
Min/Max rating change allowed	140.8	143.8	129.8	149.2
Highest rating	1451.1 2019-01-01	1300 2024-02-01	1510.4 2019-01-01	1274.3 2024-02-01
Highest raw rating	1314.9 2024-02-01	1300 2024-02-01	1371.8 2024-02-01	1274.3 2024-02-01
Highest weighted rating	1313.7 2025-08-01	1296.7 2025-08-01	1369.3 2025-08-01	1272.4 2025-08-01
Highest weighted performance	1451.1 2019-01-01	1200 2024-02-01	1510.4 2019-01-01	1249.2 2022-07-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1314.9	1300	1371.8	1274.3
Analysis
Rating	1314.9	1300	1371.8	1274.3
Raw rating	1314.9	1300	1371.8	1274.3
Weighted rating	1314.6	1299	1371
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	814.9	800	871.8	774.3
Max/Min rating change allowed	140.8	143.8	129.8	149.2
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	1314.9	1300	1371.8	1274.3
New weighted rating	1314.8	1299.7	1371.5	1274.1
New weighted performance	0	0	0	0
Temp new rating	1314.9	1300	1371.8	1274.3
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1314.9	1300	1371.8	1274.3
New K-factor	36	36	36	36
New floor	814.9	800	871.8	774.3

Item	Main	Rapid	Blitz
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	10	0	10
	0	0	0
History	21	11	10

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Cape Town (WCT)
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	21	11.5	54.76	40.5	1432.3	1472.8
Standard	0	0	0	0	0	0
Rapid	11	7	63.64	115.9	1352.7	1468.6
Blitz	10	4.5	45	-42.5	1519.8	1477.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1314.9	1300	1371.8	1274.3
2025-09-01	1314.9	1300	1371.8	1274.3
2025-08-01	1314.9	1300	1371.8	1274.3
2025-07-01	1314.9	1300	1371.8	1274.3
2025-06-01	1314.9	1300	1371.8	1274.3
2025-05-01	1314.9	1300	1371.8	1274.3
2025-04-01	1314.9	1300	1371.8	1274.3
2025-03-01	1314.9	1300	1371.8	1274.3
2025-02-01	1314.9	1300	1371.8	1274.3
2025-01-01	1314.9	1300	1371.8	1274.3
2024-12-01	1314.9	1300	1371.8	1274.3
2024-11-01	1314.9	1300	1371.8	1274.3
2024-10-01	1314.9	1300	1371.8	1274.3
2024-09-01	1314.9	1300	1371.8	1274.3
2024-08-01	1314.9	1300	1371.8	1274.3
2024-07-01	1314.9	1300	1371.8	1274.3
2024-06-01	1314.9	1300	1371.8	1274.3
2024-08-01	1314.9	1300	1371.8	1274.3
2024-04-01	1314.9	1300	1371.8	1274.3
2024-03-01	1314.9	1300	1371.8	1274.3
2024-02-01	1314.9	1300	1371.8	1274.3
2024-01-01	1314.9	1300	1371.8	1274.3
2023-12-01	1280	1200	1299.4	1219.6
2023-11-01	1280	1200	1299.4	1219.6

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	South African Open 2022 (Blitz)	2022-07-14	2022-07-14	Blitz	Cape Town (WCT)	10	10	4.5	Yes	Analysis
2	Drakenstein Dragons Rapid 2019 (Open)	2019-01-19	2019-01-19	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
3	ACL Open 2018 (Open)	2018-12-07	2018-12-09	Rapid	Cape Town (WCT)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 2	type Blitz	result 0.5	date 2022-07-14	rnd 4	type Blitz	result 1
		Opponent Makhetha, L (Laviens)				Opponent Muller, K (Kaden)
2	2	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 6	type Rapid	result 1
		Opponent Boyisi, A (Aaron)				Opponent Matthys, A (Allistair)
3	2	Tournament ACL Open 2018				Tournament Drakenstein Dragons Rapid 2019
		date 2018-12-09	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 1	type Rapid	result 1
		Opponent Imrie, D (Daniel)				Opponent Frans, J (Johannes)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 6	type Rapid	result 1
		Opponent Boyisi, A (Aaron)				Opponent Matthys, A (Allistair)
2	2	Tournament ACL Open 2018				Tournament Drakenstein Dragons Rapid 2019
		date 2018-12-09	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 1	type Rapid	result 1
		Opponent Imrie, D (Daniel)				Opponent Frans, J (Johannes)
3	1	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 3	type Rapid	result 1	date 2019-01-19	rnd 3	type Rapid	result 1
		Opponent Ferreira, C (Craig)				Opponent Ferreira, C (Craig)

#	Games	Start				End
1	3	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 2	type Blitz	result 0.5	date 2022-07-14	rnd 4	type Blitz	result 1
		Opponent Makhetha, L (Laviens)				Opponent Muller, K (Kaden)
2	1	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 10	type Blitz	result 1	date 2022-07-14	rnd 10	type Blitz	result 1
		Opponent Adams, J (Jedediah)				Opponent Adams, J (Jedediah)
3	1	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 8	type Blitz	result 1	date 2022-07-14	rnd 8	type Blitz	result 1
		Opponent Coetzee, JS (Justin)				Opponent Coetzee, JS (Justin)

#	Games	Start				End
1	2	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 3	type Blitz	result 1	date 2022-07-14	rnd 4	type Blitz	result 1
		Opponent Sithole, A (Anoona)				Opponent Muller, K (Kaden)
2	2	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 6	type Rapid	result 1
		Opponent Boyisi, A (Aaron)				Opponent Matthys, A (Allistair)
3	2	Tournament ACL Open 2018				Tournament Drakenstein Dragons Rapid 2019
		date 2018-12-09	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 1	type Rapid	result 1
		Opponent Imrie, D (Daniel)				Opponent Frans, J (Johannes)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 6	type Rapid	result 1
		Opponent Boyisi, A (Aaron)				Opponent Matthys, A (Allistair)
2	2	Tournament ACL Open 2018				Tournament Drakenstein Dragons Rapid 2019
		date 2018-12-09	rnd 5	type Rapid	result 1	date 2019-01-19	rnd 1	type Rapid	result 1
		Opponent Imrie, D (Daniel)				Opponent Frans, J (Johannes)
3	1	Tournament Drakenstein Dragons Rapid 2019				Tournament Drakenstein Dragons Rapid 2019
		date 2019-01-19	rnd 3	type Rapid	result 1	date 2019-01-19	rnd 3	type Rapid	result 1
		Opponent Ferreira, C (Craig)				Opponent Ferreira, C (Craig)

#	Games	Start				End
1	2	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 3	type Blitz	result 1	date 2022-07-14	rnd 4	type Blitz	result 1
		Opponent Sithole, A (Anoona)				Opponent Muller, K (Kaden)
2	1	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 10	type Blitz	result 1	date 2022-07-14	rnd 10	type Blitz	result 1
		Opponent Adams, J (Jedediah)				Opponent Adams, J (Jedediah)
3	1	Tournament South African Open 2022				Tournament South African Open 2022
		date 2022-07-14	rnd 8	type Blitz	result 1	date 2022-07-14	rnd 8	type Blitz	result 1
		Opponent Coetzee, JS (Justin)				Opponent Coetzee, JS (Justin)

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	Matthys ,A (Allistair)	1	1	425	0	0	0	1	1	425	0	0	0
1	Matthys ,A (Allistair)	1	1478.6	1903.6	0	0	0	1	1403.5	1903.6	0	0	0
2	Wosk ,J (Jonathan)	1	1	425	0	0	0	1	1	425	0	0	0
2	Wosk ,J (Jonathan)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
3	Ferreira ,C (Craig)	1	1	425	0	0	0	1	1	425	0	0	0
3	Ferreira ,C (Craig)	1	1354.3	1779.3	0	0	0	1	1323.1	1779.3	0	0	0
4	Imrie ,D (Daniel)	1	1	425	0	0	0	1	1	425	0	0	0
4	Imrie ,D (Daniel)	1	889.7	1314.7	0	0	0	1	596.4	1314.7	0	0	0
5	Boyisi ,A (Aaron)	1	1	425	0	0	0	1	1	425	0	0	0
5	Boyisi ,A (Aaron)	1	1729.3	2154.3	0	0	0	1	1765.5	2154.3	0	0	0
6	Frans ,J (Johannes)	1	1	425	0	0	0	1	1	425	0	0	0
6	Frans ,J (Johannes)	1	1200	1625	0	0	0	1	1200	1625	0	0	0
7	Fraser ,CJ (Craig John)	1	0	-425	0	0	0	1	0	-425	0	0	0
7	Fraser ,CJ (Craig John)	1	1704.5	1279.5	0	0	0	1	1716.8	1279.5	0	0	0
8	Pick ,DD (Deon Derick)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Pick ,DD (Deon Derick)	1	1736.6	1311.6	0	0	0	1	1795.7	1311.6	0	0	0
9	Marais ,C (Charl)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Marais ,C (Charl)	1	1200	775	0	0	0	1	1200	775	0	0	0
10	Du Toit ,G (Guillaume)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Du Toit ,G (Guillaume)	1	1200	775	0	0	0	1	1200	775	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Marais, W (Willie)

Ratings

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Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms