Chess South Africa Ratings Database

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Personal

Oosthuizen, J (Joubert)

Chess SA id

189029035

FIDE id

Date of birth

1989-09-26 (Adult)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-27

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1800.5	1797.3	1709	1709
Raw rating	1800.5	1797.3	1709	1709
Weighted rating	1792.2	1789.2	1709	1709
Weighted performance	0	0	0	0
Floor	1300.5	1297.3	1209	1209
K-factor	24	28	28	28
Min/Max rating change allowed	70.5	70.8	80.3	80.3
Highest rating	2060.8 2022-09-01	2065.2 2022-09-01	1709 2024-02-01	1709 2024-02-01
Highest raw rating	1800.5 2025-11-01	1797.3 2025-11-01	1709 2024-02-01	1709 2024-02-01
Highest weighted rating	1792.2 2025-11-01	1789.2 2025-11-01	1708.9 2025-08-01	1708.9 2025-08-01
Highest weighted performance	2060.8 2022-09-01	2065.2 2022-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1800.5	1797.3	1709	1709
Analysis
Rating	1800.5	1797.3	1709	1709
Raw rating	1800.5	1797.3	1709	1709
Weighted rating	1792.2	1789.2	1709
Weighted performance	0	0	0
K-factor	24	28	28	28
Floor	1300.5	1297.3	1209	1209
Max/Min rating change allowed	70.5	70.8	80.3	80.3
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	1800.5	1797.3	1709	1709
New weighted rating	1793.3	1790.2	1709	1709
New weighted performance	0	0	0	0
Temp new rating	1800.5	1797.3	1709	1709
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1800.5	1797.3	1709	1709
New K-factor	24	28	28	28
New floor	1300.5	1297.3	1209	1209

Item	Main	Standard
	0	0
	3	3
	5	5
	17	17
	14	14
	0	0
History	55	55

Games since
	Main 8	Standard 8		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	3	1.5	50	0	1856	1856
Standard	3	1.5	50	0	1856	1856
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	39	26	66.67	141.7	1685.6	1827.3
Standard	39	26	66.67	141.7	1685.6	1827.3
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1800.5	1797.3	1709	1709
2025-09-30	1795.7	1792.3	1709	1709
2025-09-01	1795.7	1792.3	1709	1709
2025-08-01	1795.7	1792.3	1709	1709
2025-07-01	1795.7	1792.3	1709	1709
2025-06-01	1795.7	1792.3	1709	1709
2025-05-01	1795.7	1792.3	1709	1709
2025-04-01	1795.7	1792.3	1709	1709
2025-03-01	1795.7	1792.3	1709	1709
2025-02-01	1795.7	1792.3	1709	1709
2025-01-01	1795.7	1792.3	1709	1709
2024-12-01	1795.7	1792.3	1709	1709
2024-11-01	1795.7	1792.3	1709	1709
2024-10-01	1795.7	1792.3	1709	1709
2024-09-01	1775	1773	1709	1709
2024-08-01	1775	1773	1709	1709
2024-07-01	1775	1773	1709	1709
2024-09-01	1775	1773	1709	1709
2024-05-01	1775	1773	1709	1709
2024-04-01	1775	1773	1709	1709
2024-03-01	1773.9	1774.1	1709	1709
2024-02-01	1773.9	1774.1	1709	1709
2024-01-01	1773.9	1774.1	1709	1709
2023-12-01	1773.9	1774.1	1706	1706

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	1.5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Federation Club League 2025 (A)	2025-07-26	2025-09-27	Standard	Cape Town (WCT)	11	3	1.5	Yes	Analysis
2	CT League 2024 (A)	2024-07-20	2024-09-07	Standard	Cape Town (WCT)	11	2	2	Yes	Analysis
3	Western Cape Inter Region Cup 2024 (Open)	2024-03-23	2024-03-24	Standard	Overberg (WOS)	5	3	1.5	Yes	Analysis
4	WP Club League 2023 (A)	2023-07-29	2023-09-09	Standard	Cape Town (WCT)	11	8	6.5	Yes	Analysis
5	Cape Winelands Open 2023 (Championship)	2023-07-22	2023-07-23	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
6	Western Cape Inter Regional 2023 (Senior Men)	2023-03-18	2023-03-19	Standard	Eden (WEG)	5	3	2.5	Yes	Analysis
7	Western Cape Inter Regional 2023 (Blitz)	2023-03-17	2023-03-17	Blitz	Eden (WEG)	5	0	0	No	Analysis
8	2022 Western Province Club League (Premier)	2022-08-20	2022-10-01	Standard	Cape Town (WCT)	11	8	4.5	Yes	Analysis
9	Western Cape Closed Championship 2022 (Championship)	2022-09-24	2022-09-25	Standard	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis

#	Games	Start				End
1	9	Tournament WP Club League 2023				Tournament Western Cape Inter Region Cup 2024
		date 2023-07-29	rnd 2	type Standard	result 1	date 2024-03-23	rnd 2	type Standard	result 0.5
		Opponent Blaauw, GM (Gavin)				Opponent Samuels, ER (Ethan)
2	7	Tournament Western Cape Closed Championship 2022				Tournament Western Cape Inter Regional 2023
		date 2022-09-24	rnd 3	type Standard	result 1	date 2023-03-19	rnd 4	type Standard	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Arnold, M (Michael)
3	3	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 3	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Liebenberg, FW (Frederick)				Opponent Ncethelo, B (Bongolethu)

#	Games	Start				End
1	9	Tournament WP Club League 2023				Tournament Western Cape Inter Region Cup 2024
		date 2023-07-29	rnd 2	type Standard	result 1	date 2024-03-23	rnd 2	type Standard	result 0.5
		Opponent Blaauw, GM (Gavin)				Opponent Samuels, ER (Ethan)
2	7	Tournament Western Cape Closed Championship 2022				Tournament Western Cape Inter Regional 2023
		date 2022-09-24	rnd 3	type Standard	result 1	date 2023-03-19	rnd 4	type Standard	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Arnold, M (Michael)
3	3	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 3	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Liebenberg, FW (Frederick)				Opponent Ncethelo, B (Bongolethu)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-08-19	rnd 6	type Standard	result 1
		Opponent Blaauw, GM (Gavin)				Opponent Van Niekerk, LM (Lourenzo)
2	3	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 3	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Liebenberg, FW (Frederick)				Opponent Ncethelo, B (Bongolethu)
3	3	Tournament Western Cape Closed Championship 2022				Tournament Western Cape Closed Championship 2022
		date 2022-09-24	rnd 3	type Standard	result 1	date 2022-09-25	rnd 5	type Standard	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Karsten, JD (Jan)

#	Games	Start				End
1	5	Tournament WP Club League 2023				Tournament WP Club League 2023
		date 2023-07-29	rnd 2	type Standard	result 1	date 2023-08-19	rnd 6	type Standard	result 1
		Opponent Blaauw, GM (Gavin)				Opponent Van Niekerk, LM (Lourenzo)
2	3	Tournament Cape Winelands Open 2023				Tournament Cape Winelands Open 2023
		date 2023-07-22	rnd 3	type Standard	result 1	date 2023-07-23	rnd 5	type Standard	result 1
		Opponent Liebenberg, FW (Frederick)				Opponent Ncethelo, B (Bongolethu)
3	3	Tournament Western Cape Closed Championship 2022				Tournament Western Cape Closed Championship 2022
		date 2022-09-24	rnd 3	type Standard	result 1	date 2022-09-25	rnd 5	type Standard	result 1
		Opponent Mncwabe, M (Minenhle Junior)				Opponent Karsten, JD (Jan)

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	Salimu ,C (Chase)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
1	Salimu ,C (Chase)	3	1766.9	1766.9	3	1726.9	1766.9	0	0	0	0	0	0
2	De Jager ,LJ (Luan Johannes)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
2	De Jager ,LJ (Luan Johannes)	2	1844.7	2057.2	2	1849.6	2057.2	0	0	0	0	0	0
3	Braaf ,J (Jiraan)	2	1	0	2	1	0	0	0	0	0	0	0
3	Braaf ,J (Jiraan)	2	1767.8	1767.8	2	1773	1767.8	0	0	0	0	0	0
4	Van Niekerk ,LM (Lourenzo Milaan)	1	1	425	1	1	425	0	0	0	0	0	0
4	Van Niekerk ,LM (Lourenzo Milaan)	1	1820.5	2245.5	1	1829	2245.5	0	0	0	0	0	0
5	Palmer ,RN (Reegan)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Palmer ,RN (Reegan)	1	1926.5	1501.5	1	1907.9	1501.5	0	0	0	0	0	0
6	Yacoob ,A (Ameera)	1	1	425	1	1	425	0	0	0	0	0	0
6	Yacoob ,A (Ameera)	1	1490.4	1915.4	1	1487.5	1915.4	0	0	0	0	0	0
7	Hoossen ,E (Erfaan)	1	1	425	1	1	425	0	0	0	0	0	0
7	Hoossen ,E (Erfaan)	1	1737.8	2162.8	1	1736.3	2162.8	0	0	0	0	0	0
8	Karsten ,JD (Jan Daniel)	1	1	425	1	1	425	0	0	0	0	0	0
8	Karsten ,JD (Jan Daniel)	1	1937.4	2362.4	1	1951.7	2362.4	0	0	0	0	0	0
9	Samuels ,ER (Ethan)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
9	Samuels ,ER (Ethan)	1	1976.5	1976.5	1	1980.4	1976.5	0	0	0	0	0	0
10	Willenberg ,SC (Shane Clayton)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Willenberg ,SC (Shane Clayton)	1	1672.7	1247.7	1	1651	1247.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Oosthuizen, J (Joubert)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms