Chess South Africa Ratings Database

PLAYER PAGE

Personal

Oosthuizen, S (Seth)

Chess SA id

1110150499

FIDE id

Date of birth

2011-10-07 (U16)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-24

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1156.4	1140	1193.4	1200
Raw rating	1156.4	1140	1193.4	1200
Weighted rating	1143.1	1140	1179.6	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	176.4	180.6	167.4	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01
Highest weighted rating	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1156.4	1140	1193.4	1200
Analysis
Rating	1156.4	1140	1193.4	1200
Raw rating	1156.4	1140	1193.4	1200
Weighted rating	1143.1	1140	1179.6
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	176.4	180.6	167.4	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	1156.4	1140	1193.4	1200
New weighted rating	1144.4	1140	1181	1200
New weighted performance	0	0	0	0
Temp new rating	1156.4	1140	1193.4	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1156.4	1140	1193.4	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	6	0	6
	0	0	0
	10	6	4
	0	0	0
	0	0	0
History	16	6	10

Games since
	Main 6	Standard 0		Rapid 6		Blitz 0
Gender	Male
Age group	U16
Region	Cape Town (WCT)
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	6	3	50	0	1272.7	1272.7
Standard	0	0	0	0	0	0
Rapid	6	3	50	0	1272.7	1272.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	16	5.5	34.38	-132.8	1231.3	1098.5
Standard	6	1.5	25	-212.5	1194.8	982.3
Rapid	10	4	40	-85	1253.3	1168.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1156.4	1140	1193.4	1200
2025-09-01	1156.4	1140	1193.4	1200
2025-08-01	1156.4	1140	1193.4	1200
2025-07-01	1156.4	1140	1193.4	1200
2025-06-01	1156.4	1140	1193.4	1200
2025-05-01	1135.7	1140	1172.2	1200
2025-04-01	1135.7	1140	1172.2	1200
2025-03-01	1135.7	1140	1172.2	1200
2025-02-01	1135.7	1140	1172.2	1200
2025-01-01	1135.2	1140	1171.2	1200
2024-12-01	1135.2	1140	1171.2	1200
2024-11-01	1135.2	1140	1171.2	1200
2024-10-01	1135.2	1140	1171.2	1200
2024-09-01	1135.2	1140	1171.2	1200
2024-08-01	1135.2	1140	1171.2	1200
2024-07-01	1135.2	1140	1171.2	1200
2024-06-01	1135.2	1140	1171.2	1200
2024-08-01	1135.2	1140	1171.2	1200
2024-04-01	1135.2	1140	1171.2	1200
2024-03-01	1135.2	1140	1171.2	1200
2024-02-01	1135.2	1140	1171.2	1200
2024-01-01	1135.2	1140	1171.2	1200
2023-12-01	1135.2	1140	1171.2	1200
2023-11-01	1135.2	1140	1171.2	1200

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	St John's CBC Rapid 2025 (U14)	2025-05-24	2025-05-24	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	St John's CBC Rapid 2025 (U14)	2025-05-24	2025-05-24	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis
2	CT Metro District North Top Schools Chess 2023 (U13 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	4	1	Yes	Analysis
3	North District School Trials 2023 (U13 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	6	1.5	Yes	Analysis

#	Games	Start				End
1	2	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 5	type Standard	result 0.5	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Davids, A (Azariel)				Opponent Gunzo, T (Tafadzwa)
2	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 5	type Rapid	result 1	date 2025-05-24	rnd 5	type Rapid	result 1
		Opponent Chiguye, H (Hannah)				Opponent Chiguye, H (Hannah)
3	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 3	type Rapid	result 1	date 2025-05-24	rnd 3	type Rapid	result 1
		Opponent Nel, L (Luke Stefan)				Opponent Nel, L (Luke Stefan)

#	Games	Start				End
1	2	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 5	type Standard	result 0.5	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Davids, A (Azariel)				Opponent Gunzo, T (Tafadzwa)

#	Games	Start				End
1	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 5	type Rapid	result 1	date 2025-05-24	rnd 5	type Rapid	result 1
		Opponent Chiguye, H (Hannah)				Opponent Chiguye, H (Hannah)
2	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 3	type Rapid	result 1	date 2025-05-24	rnd 3	type Rapid	result 1
		Opponent Nel, L (Luke Stefan)				Opponent Nel, L (Luke Stefan)
3	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 1	type Rapid	result 1
		Opponent Spele, I (Imange)				Opponent Spele, I (Imange)

No games found.

#	Games	Start				End

#	Games	Start				End
1	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 5	type Rapid	result 1	date 2025-05-24	rnd 5	type Rapid	result 1
		Opponent Chiguye, H (Hannah)				Opponent Chiguye, H (Hannah)
2	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 3	type Rapid	result 1	date 2025-05-24	rnd 3	type Rapid	result 1
		Opponent Nel, L (Luke Stefan)				Opponent Nel, L (Luke Stefan)
3	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 1	type Rapid	result 1
		Opponent Spele, I (Imange)				Opponent Spele, I (Imange)

#	Games	Start				End
1	1	Tournament North District School Trials 2023				Tournament North District School Trials 2023
		date 2023-02-04	rnd 6	type Standard	result 1	date 2023-02-04	rnd 6	type Standard	result 1
		Opponent Gunzo, T (Tafadzwa)				Opponent Gunzo, T (Tafadzwa)

#	Games	Start				End
1	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 5	type Rapid	result 1	date 2025-05-24	rnd 5	type Rapid	result 1
		Opponent Chiguye, H (Hannah)				Opponent Chiguye, H (Hannah)
2	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 3	type Rapid	result 1	date 2025-05-24	rnd 3	type Rapid	result 1
		Opponent Nel, L (Luke Stefan)				Opponent Nel, L (Luke Stefan)
3	1	Tournament St John's CBC Rapid 2025				Tournament St John's CBC Rapid 2025
		date 2025-05-24	rnd 1	type Rapid	result 1	date 2025-05-24	rnd 1	type Rapid	result 1
		Opponent Spele, I (Imange)				Opponent Spele, I (Imange)

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	Davids ,A (Azariel)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
1	Davids ,A (Azariel)	1	1200	1200	1	1200	1200	0	0	0	0	0	0
2	De Klerk ,M (Matthew)	1	0	-425	1	0	-425	0	0	0	0	0	0
2	De Klerk ,M (Matthew)	1	1168.6	743.6	1	1200	743.6	0	0	0	0	0	0
3	Gunzo ,T (Tafadzwa)	1	1	425	1	1	425	0	0	0	0	0	0
3	Gunzo ,T (Tafadzwa)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Badenhorst ,Z (Zander)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Badenhorst ,Z (Zander)	1	1200	775	1	1200	775	0	0	0	0	0	0
5	Davids ,D (Devon)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Davids ,D (Devon)	1	1200	775	1	1200	775	0	0	0	0	0	0
6	Deysel ,C (Chandley)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Deysel ,C (Chandley)	1	1200	775	1	1200	775	0	0	0	0	0	0
7	Nel ,LS (Luke Stefan)	1	1	425	0	0	0	1	1	425	0	0	0
7	Nel ,LS (Luke Stefan)	1	1198.2	1623.2	0	0	0	1	1196.1	1623.2	0	0	0
8	Hibbins ,G (Graeme)	1	0	-425	0	0	0	1	0	-425	0	0	0
8	Hibbins ,G (Graeme)	1	1529.3	1104.3	0	0	0	1	1536.9	1104.3	0	0	0
9	Gous ,L (Luka)	1	0	-425	0	0	0	1	0	-425	0	0	0
9	Gous ,L (Luka)	1	1337.7	912.7	0	0	0	1	1332.6	912.7	0	0	0
10	Li ,K (Karena)	1	0	-425	0	0	0	1	0	-425	0	0	0
10	Li ,K (Karena)	1	1324	899	0	0	0	1	1263.1	899	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Oosthuizen, S (Seth)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms