Chess South Africa Ratings Database

PLAYER PAGE

Personal

Joubert, W (Willem)

Chess SA id

170014653

FIDE id

Date of birth

1970-07-02 (Adult)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-08-28

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1211.1	1186.2	1300	1300
Raw rating	1210.3	1185.6	1300	1300
Weighted rating	1211.1	1186.2	1299.7	1299.7
Weighted performance	664.1	671.4	0	0
Floor	738.4	715.8	800	800
K-factor	36	36	36	36
Min/Max rating change allowed	163.4	169.3	143.8	143.8
Highest rating	1238.4 2024-05-01	1215.8 2024-05-01	1300 2024-02-01	1300 2024-02-01
Highest raw rating	1238.4 2024-05-01	1215.8 2024-05-01	1300 2024-02-01	1300 2024-02-01
Highest weighted rating	1238.4 2018-01-01	1215.8 2018-01-01	1297.1 2025-08-01	1297.1 2025-08-01
Highest weighted performance	1200 2018-01-01	1200 2018-01-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-0.2	-0.1	0	0
New rating	1210.9	1186.1	1300	1300
Analysis
Rating	1211.1	1186.2	1300	1300
Raw rating	1210.3	1185.6	1300	1300
Weighted rating	1211.1	1186.2	1299.7
Weighted performance	664.1	671.4	0
K-factor	36	36	36	36
Floor	738.4	715.8	800	800
Max/Min rating change allowed	163.4	169.3	143.8	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	1210.3	1185.6	1300	1300
New weighted rating	1210.9	1186.1	1300	1300
New weighted performance	657.4	664.6	0	0
Temp new rating	1210.9	1186.1	1300	1300
Temp new rating +/-	-0.2	-0.1	0	0
Final new rating +/-	-0.2	-0.1	0	0
New rating	1210.9	1186.1	1300	1300
New K-factor	36	36	36	36
New floor	738.4	715.8	800	800

Item	Main	Standard
	0	0
	0	0
	9	9
	8	8
	0	0
	0	0
History	44	44

Games since
	Main 9	Standard 9		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Tshwane (GTP)
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	41	14.5	35.37	-124.4	1250.4	1126
Standard	41	14.5	35.37	-124.4	1250.4	1126
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1210.3	1185.6	1300	1300
2025-09-30	1210.3	1185.6	1300	1300
2025-09-01	1210.3	1185.6	1300	1300
2025-08-01	1210.3	1185.6	1300	1300
2025-07-01	1209.6	1185.1	1300	1300
2025-06-01	1208.8	1184.6	1300	1300
2025-05-01	1208	1184	1300	1300
2025-04-01	1207.1	1183.5	1300	1300
2025-03-01	1206.1	1182.8	1300	1300
2025-02-01	1204.6	1181.4	1300	1300
2025-01-01	1197.2	1169.7	1300	1300
2024-12-01	1197.2	1169.7	1300	1300
2024-11-01	1197.2	1169.7	1300	1300
2024-10-01	1197.2	1169.7	1300	1300
2024-09-01	1238.4	1215.8	1300	1300
2024-08-01	1238.4	1215.8	1300	1300
2024-07-01	1238.4	1215.8	1300	1300
2024-09-01	1238.4	1215.8	1300	1300
2024-05-01	1238.4	1215.8	1300	1300
2024-04-01	1219.3	1185.9	1300	1300
2024-03-01	1219.3	1185.9	1300	1300
2024-02-01	1219.3	1185.9	1300	1300
2024-01-01	1219.3	1185.9	1300	1300
2023-12-01	1148.7	1142	1213	1213

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	2024 Tuks Open Chess Tournament (Braille)	2024-08-28	2024-08-28	Standard	Tshwane (GTP)	5	4	0	Yes	Analysis
2	South African Braille Open 2024	2024-03-09	2024-03-09	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
3	2023 Tuks Open Chess Tournament (Braille)	2023-10-07	2023-10-07	Standard	Tshwane (GTP)	4	4	1.5	Yes	Analysis
4	ANIME @ Play Chess 2023 (Braille)	2023-08-12	2023-08-12	Standard	Ekurhuleni (GE)	4	4	1	Yes	Analysis
5	2019 South African Braille Championship	2020-01-11	2020-01-12	Standard	4 Knights (4K)	5	5	2	Yes	Analysis
6	2019 Gauteng Braille Open	2019-10-26	2019-10-26	Standard	Tshwane (GTP)	4	4	1	Yes	Analysis
7	2019 SWVG Arnold Classic (Blind)	2019-05-18	2019-05-18	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
8	South African Braille Championships 2018	2018-12-21	2018-12-23	Standard	4 Knights (4K)	5	5	2	Yes	Analysis
9	SWVG Arnold Classic Rapid & Blitz 2018 (Braille)	2018-05-18	2018-05-18	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 Gauteng Braille Open
		date 2019-05-18	rnd 4	type Standard	result 1	date 2019-10-26	rnd 1	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Swanepoel, EGF (Erens)
2	2	Tournament South African Braille Open 2024				Tournament South African Braille Open 2024
		date 2024-03-09	rnd 1	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Venter, L (Logan)				Opponent Ngwevela, L (Luzuku)
3	2	Tournament 2023 Tuks Open Chess Tournament				Tournament 2023 Tuks Open Chess Tournament
		date 2023-10-07	rnd 2	type Standard	result 1	date 2023-10-07	rnd 3	type Standard	result 0.5
		Opponent Ndlovu, J (Jonas)				Opponent Grib, J (Jessica)

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 Gauteng Braille Open
		date 2019-05-18	rnd 4	type Standard	result 1	date 2019-10-26	rnd 1	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Swanepoel, EGF (Erens)
2	2	Tournament South African Braille Open 2024				Tournament South African Braille Open 2024
		date 2024-03-09	rnd 1	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Venter, L (Logan)				Opponent Ngwevela, L (Luzuku)
3	2	Tournament 2023 Tuks Open Chess Tournament				Tournament 2023 Tuks Open Chess Tournament
		date 2023-10-07	rnd 2	type Standard	result 1	date 2023-10-07	rnd 3	type Standard	result 0.5
		Opponent Ndlovu, J (Jonas)				Opponent Grib, J (Jessica)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 Gauteng Braille Open
		date 2019-05-18	rnd 4	type Standard	result 1	date 2019-10-26	rnd 1	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Swanepoel, EGF (Erens)
2	2	Tournament South African Braille Open 2024				Tournament South African Braille Open 2024
		date 2024-03-09	rnd 1	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Venter, L (Logan)				Opponent Ngwevela, L (Luzuku)
3	1	Tournament South African Braille Open 2024				Tournament South African Braille Open 2024
		date 2024-03-09	rnd 5	type Standard	result 1	date 2024-03-09	rnd 5	type Standard	result 1
		Opponent Venter, D (Danelize)				Opponent Venter, D (Danelize)

#	Games	Start				End
1	3	Tournament 2019 SWVG Arnold Classic				Tournament 2019 Gauteng Braille Open
		date 2019-05-18	rnd 4	type Standard	result 1	date 2019-10-26	rnd 1	type Standard	result 1
		Opponent Grib, J (Jessica)				Opponent Swanepoel, EGF (Erens)
2	2	Tournament South African Braille Open 2024				Tournament South African Braille Open 2024
		date 2024-03-09	rnd 1	type Standard	result 1	date 2024-03-09	rnd 2	type Standard	result 1
		Opponent Venter, L (Logan)				Opponent Ngwevela, L (Luzuku)
3	1	Tournament South African Braille Open 2024				Tournament South African Braille Open 2024
		date 2024-03-09	rnd 5	type Standard	result 1	date 2024-03-09	rnd 5	type Standard	result 1
		Opponent Venter, D (Danelize)				Opponent Venter, D (Danelize)

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	Grib ,J (Jessica)	6	3.5	70.8	6	3.5	70.8	0	0	0	0	0	0
1	Grib ,J (Jessica)	6	1143.8	1214.6	6	1128.9	1214.6	0	0	0	0	0	0
2	De Nobrega ,FP (Florindo)	5	0	-425	5	0	-425	0	0	0	0	0	0
2	De Nobrega ,FP (Florindo)	5	1235.6	810.6	5	1249	810.6	0	0	0	0	0	0
3	De Meyer ,B (Bruno)	3	0	-425	3	0	-425	0	0	0	0	0	0
3	De Meyer ,B (Bruno)	3	1594.8	1169.8	3	1623.4	1169.8	0	0	0	0	0	0
4	Joubert ,J (Jacques)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Joubert ,J (Jacques)	3	1168.5	1026.8	3	1162.5	1026.8	0	0	0	0	0	0
5	Brown ,S (Sam)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Brown ,S (Sam)	2	1233.4	808.4	2	1236.9	808.4	0	0	0	0	0	0
6	Vosloo ,CJ (Cicel Johannes)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Vosloo ,CJ (Cicel Johannes)	2	1522.9	1097.9	2	1521.2	1097.9	0	0	0	0	0	0
7	Grib ,J (Johannes)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Grib ,J (Johannes)	2	1365	940	2	1365.8	940	0	0	0	0	0	0
8	Kloppers ,H (Hendrik)	1	1	425	1	1	425	0	0	0	0	0	0
8	Kloppers ,H (Hendrik)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Venter ,L (Logan)	1	1	425	1	1	425	0	0	0	0	0	0
9	Venter ,L (Logan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
10	Roberts ,MA (Mario Andre)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Roberts ,MA (Mario Andre)	1	1072	647	1	1072	647	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

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PLAYER PAGE

Personal

Joubert, W (Willem)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms