Chess South Africa Ratings Database

PLAYER PAGE

Personal

Oosthuizen, J (Johalin)

Chess SA id

110095405

FIDE id

Date of birth

2010-02-17 (U16)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-07-30

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1066.7	1044.8	1198.4	1200
Raw rating	1066.7	1044.8	1198.4	1200
Weighted rating	1066.7	1044.8	1198.4	1200
Weighted performance	499.8	497.6	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	200.5	206.8	166.2	165.8
Highest rating	1200 2018-02-01	1200 2018-02-01	1207.4 2019-10-01	1200 2018-10-01
Highest raw rating	1200 2018-02-01	1200 2018-02-01	1200 2018-02-01	1200 2024-02-01
Highest weighted rating	1200 2018-02-01	1200 2018-02-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2024-12-01	1200 2024-12-01	1207.4 2019-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1066.7	1044.8	1198.4	1200
Analysis
Rating	1066.7	1044.8	1198.4	1200
Raw rating	1066.7	1044.8	1198.4	1200
Weighted rating	1066.7	1044.8	1198.4
Weighted performance	499.8	497.6	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	200.5	206.8	166.2	165.8
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	1066.7	1044.8	1198.4	1200
New weighted rating	1066.7	1044.8	1198.4	1200
New weighted performance	499.5	497.3	0	0
Temp new rating	1066.7	1044.8	1198.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1066.7	1044.8	1198.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	0	0	0
	0	0	0
	15	15	0
	0	0	0
History	50	40	10

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U16
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 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	45	17	37.78	-103.9	1184.6	1080.7
Standard	40	14.5	36.25	-116.9	1182.7	1065.8
Rapid	5	2.5	50	0	1200	1200
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1066.7	1044.8	1198.4	1200
2025-09-01	1066.7	1044.8	1198.4	1200
2025-08-01	1066.7	1044.8	1198.4	1200
2025-07-01	1066.7	1044.8	1198.4	1200
2025-06-01	1066.7	1044.8	1198.4	1200
2025-05-01	1066.7	1044.8	1198.4	1200
2025-04-01	1066.7	1044.8	1198.4	1200
2025-03-01	1066.7	1044.8	1198.4	1200
2025-02-01	1066.7	1044.8	1198.4	1200
2025-01-01	1066.7	1044.8	1198.4	1200
2024-12-01	1066.7	1044.8	1198.4	1200
2024-11-01	1066.7	1044.8	1198.4	1200
2024-10-01	1066.7	1044.8	1198.4	1200
2024-09-01	1066.7	1044.8	1198.4	1200
2024-08-01	1066.7	1044.8	1198.4	1200
2024-07-01	1066.7	1044.8	1198.4	1200
2024-06-01	1066.7	1044.8	1198.4	1200
2024-08-01	1066.7	1044.8	1198.4	1200
2024-04-01	1066.7	1044.8	1198.4	1200
2024-03-01	1066.7	1044.8	1198.4	1200
2024-02-01	1066.7	1044.8	1198.4	1200
2024-01-01	1066.7	1044.8	1198.4	1200
2023-12-01	1066.7	1044.8	1198.4	1200
2023-11-01	1066.7	1044.8	1198.4	1200

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	George Topskole 2022 (O13)	2022-07-30	2022-07-30	Standard	Eden (WEG)	5	5	0.5	Yes	Analysis
2	George Trials 2 2022 (U13)	2022-02-12	2022-02-12	Standard	Eden (WEG)	5	5	1	Yes	Analysis
3	George Trials 1 2022 (U13)	2022-01-29	2022-01-29	Standard	Eden (WEG)	5	5	2	Yes	Analysis
4	George Trial 2 2020 (U12)	2020-02-08	2020-02-08	Standard	Eden (WEG)	5	5	2	Yes	Analysis
5	George Trial 1 2020 (U12)	2020-01-25	2020-01-25	Standard	Eden (WEG)	5	5	2	Yes	Analysis
6	George Suid Junior Skaaktoernooi 2019	2019-10-19	2019-10-19	Rapid	Eden (WEG)	5	5	2.5	Yes	Analysis
7	George Trials 2 2019 (U10)	2019-02-09	2019-02-09	Standard	Eden (WEG)	5	5	2.5	Yes	Analysis
8	George Trials 1 2019 (U10)	2019-01-26	2019-01-26	Standard	Eden (WEG)	5	5	3.5	Yes	Analysis
9	George Trails 3 2018 (U10)	2018-02-24	2018-02-24	Standard	Eden (WEG)	5	0	0	No	Analysis
10	George Trails 2 2018 (U10)	2018-02-10	2018-02-10	Standard	Eden (WEG)	5	5	1	Yes	Analysis

#	Games	Start				End
1	4	Tournament George Trials 1 2019				Tournament George Trials 1 2019
		date 2019-01-26	rnd 1	type Standard	result 0.5	date 2019-01-26	rnd 4	type Standard	result 1
		Opponent Mollentze, J (James)				Opponent Le Roux, E (Ebert)
2	2	Tournament George Trials 1 2022				Tournament George Trials 1 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-01-29	rnd 5	type Standard	result 1
		Opponent Bukula, S (Sivuyisile)				Opponent Weweje, A (Aiden)
3	2	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 2	type Rapid	result 1	date 2019-10-19	rnd 3	type Rapid	result 0.5
		Opponent Joubert, C (Chris)				Opponent Kotze, L (Lj)

#	Games	Start				End
1	4	Tournament George Trials 1 2019				Tournament George Trials 1 2019
		date 2019-01-26	rnd 1	type Standard	result 0.5	date 2019-01-26	rnd 4	type Standard	result 1
		Opponent Mollentze, J (James)				Opponent Le Roux, E (Ebert)
2	2	Tournament George Trials 1 2022				Tournament George Trials 1 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-01-29	rnd 5	type Standard	result 1
		Opponent Bukula, S (Sivuyisile)				Opponent Weweje, A (Aiden)
3	2	Tournament George Trials 2 2019				Tournament George Trials 2 2019
		date 2019-02-09	rnd 1	type Standard	result 1	date 2019-02-09	rnd 2	type Standard	result 0.5
		Opponent Van Der Merwe, L (Lyell)				Opponent Godbeer, M (Michael)

#	Games	Start				End
1	2	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 2	type Rapid	result 1	date 2019-10-19	rnd 3	type Rapid	result 0.5
		Opponent Joubert, C (Chris)				Opponent Kotze, L (Lj)
2	1	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 5	type Rapid	result 1	date 2019-10-19	rnd 5	type Rapid	result 1
		Opponent Kitsa, M (Mercy)				Opponent Kitsa, M (Mercy)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament George Trials 1 2019				Tournament George Trials 1 2019
		date 2019-01-26	rnd 2	type Standard	result 1	date 2019-01-26	rnd 4	type Standard	result 1
		Opponent Oktober, S (Shandre)				Opponent Le Roux, E (Ebert)
2	2	Tournament George Trials 1 2022				Tournament George Trials 1 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-01-29	rnd 5	type Standard	result 1
		Opponent Bukula, S (Sivuyisile)				Opponent Weweje, A (Aiden)
3	1	Tournament George Trials 2 2022				Tournament George Trials 2 2022
		date 2022-02-12	rnd 3	type Standard	result 1	date 2022-02-12	rnd 3	type Standard	result 1
		Opponent Ndikandika, X (Xabiso)				Opponent Ndikandika, X (Xabiso)

#	Games	Start				End
1	3	Tournament George Trials 1 2019				Tournament George Trials 1 2019
		date 2019-01-26	rnd 2	type Standard	result 1	date 2019-01-26	rnd 4	type Standard	result 1
		Opponent Oktober, S (Shandre)				Opponent Le Roux, E (Ebert)
2	2	Tournament George Trials 1 2022				Tournament George Trials 1 2022
		date 2022-01-29	rnd 4	type Standard	result 1	date 2022-01-29	rnd 5	type Standard	result 1
		Opponent Bukula, S (Sivuyisile)				Opponent Weweje, A (Aiden)
3	1	Tournament George Trials 2 2022				Tournament George Trials 2 2022
		date 2022-02-12	rnd 3	type Standard	result 1	date 2022-02-12	rnd 3	type Standard	result 1
		Opponent Ndikandika, X (Xabiso)				Opponent Ndikandika, X (Xabiso)

#	Games	Start				End
1	1	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 5	type Rapid	result 1	date 2019-10-19	rnd 5	type Rapid	result 1
		Opponent Kitsa, M (Mercy)				Opponent Kitsa, M (Mercy)
2	1	Tournament George Suid Junior Skaaktoernooi 2019				Tournament George Suid Junior Skaaktoernooi 2019
		date 2019-10-19	rnd 2	type Rapid	result 1	date 2019-10-19	rnd 2	type Rapid	result 1
		Opponent Joubert, C (Chris)				Opponent Joubert, C (Chris)

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	Van Loggerenberg ,U (Ulrich)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Van Loggerenberg ,U (Ulrich)	2	1270.8	845.8	2	1263.3	845.8	0	0	0	0	0	0
2	Skeen ,M (Michael)	2	1	0	2	1	0	0	0	0	0	0	0
2	Skeen ,M (Michael)	2	1066.4	1066.4	2	1046.2	1066.4	0	0	0	0	0	0
3	Goliath ,R (Rori)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Goliath ,R (Rori)	2	1208.7	783.7	2	1210.4	783.7	0	0	0	0	0	0
4	Roodt ,R (Ruben)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Roodt ,R (Ruben)	2	1270.1	845.1	2	1260.4	845.1	0	0	0	0	0	0
5	Opperman ,A (Amy)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Opperman ,A (Amy)	2	1232.2	807.2	2	1225.2	807.2	0	0	0	0	0	0
6	Booysen ,L (Lukas)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Booysen ,L (Lukas)	1	679.4	254.4	1	695.2	254.4	0	0	0	0	0	0
7	Arpin ,L (Lukas)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Arpin ,L (Lukas)	1	1200	775	1	1200	775	0	0	0	0	0	0
8	Esau ,R (Rudine)	1	1	425	1	1	425	0	0	0	0	0	0
8	Esau ,R (Rudine)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Bukula ,S (Sivuyisile)	1	1	425	1	1	425	0	0	0	0	0	0
9	Bukula ,S (Sivuyisile)	1	1216.5	1641.5	1	1214.6	1641.5	0	0	0	0	0	0
10	Myburgh ,A (Albert)	1	1	425	1	1	425	0	0	0	0	0	0
10	Myburgh ,A (Albert)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Oosthuizen, J (Johalin)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms