Chess South Africa Ratings Database

PLAYER PAGE

Personal

Coetzee, S (Sean)

Chess SA id

1160139473

FIDE id

Date of birth

2016-03-18 (U10)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1339

Item	Main	Standard	Rapid	Blitz
Rating	1293	1263.5	1293.2	1200
Raw rating	1293	1263.5	1293.1	1200
Weighted rating	1264.2	1215.3	1293.2	1200
Weighted performance	1207.4	1193	0	0
Floor	793	763.5	799.4	700
K-factor	36	36	36	36
Min/Max rating change allowed	145.2	151.5	145.2	165.8
Highest rating	1313.8 2023-10-01	1263.5 2025-06-01	1525.8 2023-10-01	1200 2018-10-01
Highest raw rating	1293 2025-06-01	1263.5 2025-06-01	1299.4 2024-02-01	1200 2024-02-01
Highest weighted rating	1258.3 2025-08-01	1263.5 2018-10-01	1293.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1313.8 2025-06-01	1246.4 2019-12-01	1525.8 2023-10-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0	0
New rating	1293	1263.5	1293.1	1200
Analysis
Rating	1293	1263.5	1293.2	1200
Raw rating	1293	1263.5	1293.1	1200
Weighted rating	1264.2	1215.3	1293.2
Weighted performance	1207.4	1193	0
K-factor	36	36	36	36
Floor	793	763.5	799.4	700
Max/Min rating change allowed	145.2	151.5	145.2	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	1293	1263.5	1293.1	1200
New weighted rating	1266.9	1220.7	1293.1	1200
New weighted performance	1206.9	1192.6	0	0
Temp new rating	1293	1263.5	1293.1	1200
Temp new rating +/-	0	0	-0	0
Final new rating +/-	0	0	-0	0
New rating	1293	1263.5	1293.1	1200
New K-factor	36	36	36	36
New floor	793	763.5	799.4	700

Item	Main	Standard	Rapid
	0	0	0
	17	17	0
	27	21	6
	31	21	10
	28	28	0
	0	0	0
History	103	87	16

Games since
	Main 48	Standard 38		Rapid 10		Blitz 0
Gender	Male
Age group	U10
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3256		1061		152
Male	2558		778		105
U10	268		89		6
U10 Male	217		65		4
Standard
	RSA		Province		Region
Overall	3392		962		131
Male	2624		678		90
U10	289		86		7
U10 Male	232		61		5
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U10	-1		-1		-1
U10 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	17	10	58.82	75	1275.9	1350.9
Standard	17	10	58.82	75	1275.9	1350.9
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	103	47.5	46.12	-33	1214.1	1181.1
Standard	87	36	41.38	-73.3	1219.7	1146.4
Rapid	16	11.5	71.88	185.9	1183.3	1369.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1293	1263.5	1293.1	1200
2025-09-01	1293	1263.5	1293.1	1200
2025-08-01	1293	1263.5	1293.1	1200
2025-07-01	1293	1263.5	1292.9	1200
2025-06-01	1293	1263.5	1292.9	1200
2025-05-01	1275.9	1240.8	1292.9	1200
2025-04-01	1275.9	1240.8	1292.9	1200
2025-03-01	1241.9	1188.8	1292.9	1200
2025-02-01	1235.3	1167.5	1292.9	1200
2025-01-01	1216.5	1159.7	1292.9	1200
2024-12-01	1216.5	1159.7	1292.9	1200
2024-11-01	1216.5	1159.7	1292.9	1200
2024-10-01	1216.5	1159.7	1292.9	1200
2024-09-01	1244.3	1183.1	1292.9	1200
2024-08-01	1270.3	1207.2	1292.9	1200
2024-07-01	1270.3	1207.2	1292.9	1200
2024-06-01	1270.3	1207.2	1292.9	1200
2024-08-01	1263.1	1179.6	1292.9	1200
2024-04-01	1263.1	1179.6	1292.9	1200
2024-03-01	1260.1	1150	1292.9	1200
2024-02-01	1256.1	1150	1299.4	1200
2024-01-01	1256.1	1150	1299.4	1200
2023-12-01	1256.1	1150	1299.4	1200
2023-11-01	1256.1	1150	1299.4	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	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U9 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools Individual Championship 2025 (U9 Boys)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	3	Yes	Analysis
2	Cape Winelands Schools Prestige 2025 (U9 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	6	6	4	Yes	Analysis
3	Cape Winelands Schools - Trials 1 2025 (U9 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
4	Goue Akkertjies 2024	2024-09-10	2024-09-12	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
5	De Villiers PS Tournament 2024 (U10)	2024-08-17	2024-08-17	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
6	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	2.5	Yes	Analysis
7	Cape Winelands Schools - Prestige 2024 (U9 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
8	Cape Winelands Schools - PS Trials 1 2024 (U9 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	3.5	Yes	Analysis
9	Worcester Knock-Out 2023 (U7 Boys+Girls)	2023-10-14	2023-10-14	Rapid	Cape Winelands (WCW)	6	4	4	Yes	Analysis
10	Western Cape Closed Championship 2023 (U8)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	4	Yes	Analysis
11	Western Cape PS Individuals 2023 (U7 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	3.5	Yes	Analysis
12	Cape Winelands Schools Prestige 2023 (U7 Boys+Girls)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
13	Cape Winelands Schools Chess - Trials 1 2023 (U7 Boys+Girls)	2023-02-18	2023-02-18	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
14	Marie Delport Memorial 2023 (Open)	2023-01-21	2023-01-21	Standard	Cape Winelands (WCW)	6	5	0.5	Yes	Analysis
15	Robertson Strategema Club 2022 (U9)	2022-10-29	2022-10-29	Standard	Cape Winelands (WCW)	5	4	1	Yes	Analysis
16	Cape Winelands Schools Top Schools 2022 (U7-U11 Mixed)	2022-08-27	2022-08-27	Standard	Cape Winelands (WCW)	6	3	1	Yes	Analysis
17	Worcester Primary School League 2022 (U11)	2022-05-21	2022-05-21	Standard	Cape Winelands (WCW)	6	4	1	Yes	Analysis
18	Western Cape Schools 2022 (U7 Boys)	2022-05-28	2022-05-29	Standard	Cape Winelands (WCW)	6	5	1	Yes	Analysis
19	WN Akkertjies 2022 (Juniors)	2022-04-27	2022-04-27	Standard	Cape Winelands (WCW)	6	6	1.5	Yes	Analysis
20	Cape Winelands Schools 2022 (U7 Boys+Girls)	2022-03-12	2022-03-12	Standard	Cape Winelands (WCW)	7	6	1	Yes	Analysis

#	Games	Start				End
1	6	Tournament Western Cape Closed Championship 2023				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2023-09-23	rnd 6	type Rapid	result 0.5	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Chumpitaz Avila, J (Josef)				Opponent Van Niekerk, C (Chris)
2	6	Tournament Western Cape PS Individuals 2023				Tournament Western Cape Closed Championship 2023
		date 2023-05-06	rnd 5	type Standard	result 1	date 2023-09-23	rnd 4	type Rapid	result 1
		Opponent Beyers, A (Adriaan)				Opponent Klopper, E (Elbe)
3	3	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Smith, A (Andrew)				Opponent Adams, N (Naydon)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Smith, A (Andrew)				Opponent Adams, N (Naydon)
2	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 2	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Revmatas, N (Nikolai)				Opponent Wyngaard, L (Luke)
3	2	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Thompson, M (Mondray)				Opponent Breytenbach, D (Daniel)

#	Games	Start				End
1	6	Tournament Western Cape Closed Championship 2023				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2023-09-23	rnd 6	type Rapid	result 0.5	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Chumpitaz Avila, J (Josef)				Opponent Van Niekerk, C (Chris)
2	4	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-23	rnd 1	type Rapid	result 0.5	date 2023-09-23	rnd 4	type Rapid	result 1
		Opponent Van Wyk, A (Alonzo)				Opponent Klopper, E (Elbe)
3	2	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 5	type Rapid	result 0.5	date 2024-02-10	rnd 6	type Rapid	result 1
		Opponent Lee, M (Monreeq)				Opponent Jansen Van Rensburg, X (Xandre)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Worcester Knock-Out 2023				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Louw, J (Jade)				Opponent Van Niekerk, C (Chris)
2	3	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Smith, A (Andrew)				Opponent Adams, N (Naydon)
3	3	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-23	rnd 2	type Rapid	result 1	date 2023-09-23	rnd 4	type Rapid	result 1
		Opponent Javed, M (Mariam)				Opponent Klopper, E (Elbe)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools - Prestige 2024				Tournament Cape Winelands Schools - Prestige 2024
		date 2024-03-02	rnd 3	type Standard	result 1	date 2024-03-02	rnd 5	type Standard	result 1
		Opponent Smith, A (Andrew)				Opponent Adams, N (Naydon)
2	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 2	type Standard	result 1	date 2025-05-17	rnd 3	type Standard	result 1
		Opponent Revmatas, N (Nikolai)				Opponent Wyngaard, L (Luke)
3	2	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Thompson, M (Mondray)				Opponent Breytenbach, D (Daniel)

#	Games	Start				End
1	5	Tournament Worcester Knock-Out 2023				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2024-02-10	rnd 1	type Rapid	result 1
		Opponent Louw, J (Jade)				Opponent Van Niekerk, C (Chris)
2	3	Tournament Western Cape Closed Championship 2023				Tournament Western Cape Closed Championship 2023
		date 2023-09-23	rnd 2	type Rapid	result 1	date 2023-09-23	rnd 4	type Rapid	result 1
		Opponent Javed, M (Mariam)				Opponent Klopper, E (Elbe)
3	1	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Cape Winelands Schools - PS Trials 1 2024
		date 2024-02-10	rnd 6	type Rapid	result 1	date 2024-02-10	rnd 6	type Rapid	result 1
		Opponent Jansen Van Rensburg, X (Xandre)				Opponent Jansen Van Rensburg, X (Xandre)

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	Edons ,M (Mihandro)	4	2	0	2	0	-425	2	2	425	0	0	0
1	Edons ,M (Mihandro)	4	1175.4	1175.4	2	1133.1	750.4	2	1200	1600.4	0	0	0
2	Williams ,M (Mackenzy)	3	0	-425	3	0	-425	0	0	0	0	0	0
2	Williams ,M (Mackenzy)	3	1206.3	781.3	3	1201.5	781.3	0	0	0	0	0	0
3	Davids ,S (Stephanie)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Davids ,S (Stephanie)	3	1122.6	1264.3	3	1102.3	1264.3	0	0	0	0	0	0
4	Da Silva ,N (Noah Clint)	3	0	-425	2	0	-425	1	0	-425	0	0	0
4	Da Silva ,N (Noah Clint)	3	1226.6	801.6	2	1240	801.6	1	1182.2	801.6	0	0	0
5	Kleinbooi ,R (Riley)	2	2	425	2	2	425	0	0	0	0	0	0
5	Kleinbooi ,R (Riley)	2	1203.9	1628.9	2	1197.2	1628.9	0	0	0	0	0	0
6	Smit ,G (Gerrit)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Smit ,G (Gerrit)	2	1398.2	973.2	2	1373.2	973.2	0	0	0	0	0	0
7	Mondleki ,L (Lunje)	2	1	0	2	1	0	0	0	0	0	0	0
7	Mondleki ,L (Lunje)	2	1200	1200	2	1200	1200	0	0	0	0	0	0
8	Klopper ,M (Marli)	2	0	-425	2	0	-425	0	0	0	0	0	0
8	Klopper ,M (Marli)	2	1268.5	843.5	2	1266.7	843.5	0	0	0	0	0	0
9	Strydom ,C (Chante)	2	0	-425	2	0	-425	0	0	0	0	0	0
9	Strydom ,C (Chante)	2	1232.7	807.7	2	1240	807.7	0	0	0	0	0	0
10	Botha ,J (Johann Alexander)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Botha ,J (Johann Alexander)	2	1320.2	895.2	2	1277.1	895.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Coetzee, S (Sean)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms