Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzee, S (Sebastian)

Chess SA id

1090130179

FIDE id

Date of birth

2009-12-10 (U18)

Gender

Male

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-03-02

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1169.1	1155.6	1185.6	1200
Raw rating	1169.1	1155.6	1185.6	1200
Weighted rating	1168.3	1151.3	1184.2	1200
Weighted performance	886.8	0	0	0
Floor	701.3	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	173.3	176.7	169.3	165.8
Highest rating	1201.3 2024-03-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest raw rating	1201.3 2024-03-01	1200 2020-01-01	1200 2020-01-01	1200 2024-02-01
Highest weighted rating	1201.3 2018-10-01	1200 2018-10-01	1200 2018-10-01	1200 2018-10-01
Highest weighted performance	1200 2019-12-01	1200 2020-01-01	1200 2019-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1169.1	1155.6	1185.6	1200
Analysis
Rating	1169.1	1155.6	1185.6	1200
Raw rating	1169.1	1155.6	1185.6	1200
Weighted rating	1168.3	1151.3	1184.2
Weighted performance	886.8	0	0
K-factor	36	36	36	36
Floor	701.3	700	700	700
Max/Min rating change allowed	173.3	176.7	169.3	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	1169.1	1155.6	1185.6	1200
New weighted rating	1168.3	1151.2	1184.8	1200
New weighted performance	886.4	0	0	0
Temp new rating	1169.1	1155.6	1185.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1169.1	1155.6	1185.6	1200
New K-factor	36	36	36	36
New floor	701.3	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	15	5	10
	5	0	5
	9	9	0
	0	0	0
History	39	19	20

Games since
	Main 15	Standard 5		Rapid 10		Blitz 0
Gender	Male
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 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	39	16	41.03	-76.3	1214	1137.7
Standard	19	7	36.84	-111.8	1228	1116.2
Rapid	20	9	45	-42.5	1200.6	1158.1
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1169.1	1155.6	1185.6	1200
2025-09-01	1169.1	1155.6	1185.6	1200
2025-08-01	1169.1	1155.6	1185.6	1200
2025-07-01	1169.1	1155.6	1185.6	1200
2025-06-01	1169.1	1155.6	1185.6	1200
2025-05-01	1169.1	1155.6	1185.6	1200
2025-04-01	1169.1	1155.6	1185.6	1200
2025-03-01	1169.1	1155.6	1185.6	1200
2025-02-01	1168.9	1155.3	1185.6	1200
2025-01-01	1164.5	1137.6	1185.6	1200
2024-12-01	1164.5	1137.6	1185.6	1200
2024-11-01	1164.5	1137.6	1185.6	1200
2024-10-01	1164.5	1137.6	1185.6	1200
2024-09-01	1164.5	1137.6	1185.6	1200
2024-08-01	1164.5	1137.6	1185.6	1200
2024-07-01	1164.5	1137.6	1185.6	1200
2024-06-01	1164.5	1137.6	1185.6	1200
2024-08-01	1164.5	1137.6	1185.6	1200
2024-04-01	1164.5	1137.6	1185.6	1200
2024-03-01	1201.3	1196	1185.6	1200
2024-02-01	1184.9	1196	1152.8	1200
2024-01-01	1173.6	1196	1136.4	1200
2023-12-01	1173.6	1196	1136.4	1200
2023-11-01	1173.6	1196	1136.4	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	Overberg High Schools Trails 2024 (U15 Boys)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
2	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
3	Overberg Open Rapid 2024 (U15)	2024-01-27	2024-01-27	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis
4	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	2	Yes	Analysis
5	Overberg Topskole 2022 (O13)	2022-08-20	2022-08-20	Standard	Overberg (WOS)	5	4	3	Yes	Analysis
6	Overberg Primary Schools Closed 2022 (U13 Boys)	2022-03-12	2022-03-12	Standard	Overberg (WOS)	5	5	2	Yes	Analysis
7	Overberg Closed 2020 (U11 Boys)	2020-03-15	2020-03-15	Standard	Overberg (WOS)	5	5	1	Yes	Analysis
8	OCF Open 2020 (U12)	2020-01-25	2020-01-25	Rapid	Overberg (WOS)	5	5	1	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Topskole 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-08-20	rnd 3	type Standard	result 1
		Opponent Mqiqi, I (Imange)				Opponent Presence, H (Hayden)
2	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Odendal, L (Lyle)				Opponent Muggels, C (Chadwin)
3	2	Tournament Overberg Open Rapid 2024				Tournament Overberg Open Rapid 2024
		date 2024-01-27	rnd 4	type Rapid	result 1	date 2024-01-27	rnd 5	type Rapid	result 1
		Opponent De Wet, E (Era)				Opponent Oliver, J (Joagen)

#	Games	Start				End
1	3	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Topskole 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-08-20	rnd 3	type Standard	result 1
		Opponent Mqiqi, I (Imange)				Opponent Presence, H (Hayden)
2	1	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent De Kock, S (Sebastian)				Opponent De Kock, S (Sebastian)
3	1	Tournament Overberg Topskole 2022				Tournament Overberg Topskole 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Ess, N (Noah)				Opponent Ess, N (Noah)

#	Games	Start				End
1	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Odendal, L (Lyle)				Opponent Muggels, C (Chadwin)
2	2	Tournament Overberg Open Rapid 2024				Tournament Overberg Open Rapid 2024
		date 2024-01-27	rnd 4	type Rapid	result 1	date 2024-01-27	rnd 5	type Rapid	result 1
		Opponent De Wet, E (Era)				Opponent Oliver, J (Joagen)
3	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Open Rapid 2024
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2024-01-27	rnd 1	type Rapid	result 1
		Opponent Mqakathi, E (Esihle)				Opponent Rossouw, JE (Janko Ederik)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Topskole 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-08-20	rnd 3	type Standard	result 1
		Opponent Mqiqi, I (Imange)				Opponent Presence, H (Hayden)
2	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Odendal, L (Lyle)				Opponent Muggels, C (Chadwin)
3	2	Tournament Overberg Open Rapid 2024				Tournament Overberg Open Rapid 2024
		date 2024-01-27	rnd 4	type Rapid	result 1	date 2024-01-27	rnd 5	type Rapid	result 1
		Opponent De Wet, E (Era)				Opponent Oliver, J (Joagen)

#	Games	Start				End
1	3	Tournament Overberg Primary Schools Closed 2022				Tournament Overberg Topskole 2022
		date 2022-03-12	rnd 5	type Standard	result 1	date 2022-08-20	rnd 3	type Standard	result 1
		Opponent Mqiqi, I (Imange)				Opponent Presence, H (Hayden)
2	1	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-03-02	rnd 2	type Standard	result 1	date 2024-03-02	rnd 2	type Standard	result 1
		Opponent De Kock, S (Sebastian)				Opponent De Kock, S (Sebastian)
3	1	Tournament Overberg Topskole 2022				Tournament Overberg Topskole 2022
		date 2022-08-20	rnd 5	type Standard	result 1	date 2022-08-20	rnd 5	type Standard	result 1
		Opponent Ess, N (Noah)				Opponent Ess, N (Noah)

#	Games	Start				End
1	2	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 4	type Rapid	result 1	date 2024-02-24	rnd 5	type Rapid	result 1
		Opponent Odendal, L (Lyle)				Opponent Muggels, C (Chadwin)
2	2	Tournament Overberg Open Rapid 2024				Tournament Overberg Open Rapid 2024
		date 2024-01-27	rnd 4	type Rapid	result 1	date 2024-01-27	rnd 5	type Rapid	result 1
		Opponent De Wet, E (Era)				Opponent Oliver, J (Joagen)
3	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg Open Rapid 2024
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2024-01-27	rnd 1	type Rapid	result 1
		Opponent Mqakathi, E (Esihle)				Opponent Rossouw, JE (Janko Ederik)

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	Olivier ,J (Joagen)	2	2	425	1	1	425	1	1	425	0	0	0
1	Olivier ,J (Joagen)	2	1038.4	1463.4	1	992	1463.4	1	714	1463.4	0	0	0
2	Muggels ,C (Chadwin)	2	1	0	0	0	0	2	1	0	0	0	0
2	Muggels ,C (Chadwin)	2	1279.6	1279.6	0	0	0	2	1206.2	1279.6	0	0	0
3	De Kock ,S (Sebastian)	1	1	425	1	1	425	0	0	0	0	0	0
3	De Kock ,S (Sebastian)	1	1147.7	1572.7	1	1133.2	1572.7	0	0	0	0	0	0
4	Joseph ,M (Maquin)	1	1	425	1	1	425	0	0	0	0	0	0
4	Joseph ,M (Maquin)	1	1166.3	1591.3	1	1200	1591.3	0	0	0	0	0	0
5	Byrne ,R (Russel)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Byrne ,R (Russel)	1	1132.1	707.1	1	1088	707.1	0	0	0	0	0	0
6	Presence ,H (Hayden)	1	1	425	1	1	425	0	0	0	0	0	0
6	Presence ,H (Hayden)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
7	Joshua ,M (Madden)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Joshua ,M (Madden)	1	1303.2	878.2	1	1287.8	878.2	0	0	0	0	0	0
8	Oosthuizen ,A (Andreas)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Oosthuizen ,A (Andreas)	1	1200	775	1	1200	775	0	0	0	0	0	0
9	Ess ,N (Noah)	1	1	425	1	1	425	0	0	0	0	0	0
9	Ess ,N (Noah)	1	1175.5	1600.5	1	1200	1600.5	0	0	0	0	0	0
10	September ,R (Ryan)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	September ,R (Ryan)	1	1200	775	1	1200	775	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Coetzee, S (Sebastian)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms