Chess South Africa Ratings Database

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Personal

Coetzee, C (Chelsy)

Chess SA id

2050140608

FIDE id

Date of birth

2005-12-16 (Adult)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-03-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1143.8	1101.7	1144.1	1200
Raw rating	1143.8	1101.7	1144.1	1200
Weighted rating	1143.8	1101.7	1144.1	1200
Weighted performance	0	0	0	0
Floor	700	700	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	179.6	190.7	179.6	165.8
Highest rating	1200 2018-10-01	1200 2018-10-01	1289.2 2023-09-01	1200 2018-10-01
Highest raw rating	1200 2019-12-01	1200 2019-12-01	1200 2019-12-01	1200 2024-02-01
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	1289.2 2023-09-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1143.8	1101.7	1144.1	1200
Analysis
Rating	1143.8	1101.7	1144.1	1200
Raw rating	1143.8	1101.7	1144.1	1200
Weighted rating	1143.8	1101.7	1144.1
Weighted performance	0	0	0
K-factor	36	36	36	36
Floor	700	700	700	700
Max/Min rating change allowed	179.6	190.7	179.6	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	1143.8	1101.7	1144.1	1200
New weighted rating	1143.8	1101.7	1144.1	1200
New weighted performance	0	0	0	0
Temp new rating	1143.8	1101.7	1144.1	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1143.8	1101.7	1144.1	1200
New K-factor	36	36	36	36
New floor	700	700	700	700

Item	Main	Standard	Rapid
	0	0	0
	5	5	0
	0	0	0
	15	0	15
	9	9	0
	0	0	0
History	29	14	15

Games since
	Main 5	Standard 5		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
Adult	-1		-1		-1
Adult Female	-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	5	1	20	-255	1166.6	911.6
Standard	5	1	20	-255	1166.6	911.6
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	29	9	31.03	-161.2	1244	1082.8
Standard	14	4	28.57	-182.1	1117.7	935.5
Rapid	15	5	33.33	-141.7	1361.9	1220.2
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1143.8	1101.7	1144.1	1200
2025-09-30	1143.8	1101.7	1144.1	1200
2025-09-01	1143.8	1101.7	1144.1	1200
2025-08-01	1143.8	1101.7	1144.1	1200
2025-07-01	1143.8	1101.7	1144.1	1200
2025-06-01	1143.7	1101.7	1144.1	1200
2025-05-01	1143.4	1101.6	1144.1	1200
2025-04-01	1140	1099.3	1144.1	1200
2025-03-01	1144.3	1102	1144.1	1200
2025-02-01	1144.3	1102	1144.1	1200
2025-01-01	1144.3	1102	1144	1200
2024-12-01	1144.3	1102	1144	1200
2024-11-01	1144.3	1102	1144	1200
2024-10-01	1144.3	1102	1144	1200
2024-09-01	1144.3	1102	1144	1200
2024-08-01	1144.3	1102	1144	1200
2024-07-01	1144.3	1102	1144	1200
2024-09-01	1144.3	1102	1144	1200
2024-05-01	1144.3	1102	1144	1200
2024-04-01	1144.3	1102	1144	1200
2024-03-01	1144.3	1102	1144	1200
2024-02-01	1144.3	1102	1144	1200
2024-01-01	1144.3	1102	1144	1200
2023-12-01	1144.3	1102	1144	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 Closed 2025 (C)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Closed 2025 (C)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	5	1	Yes	Analysis
2	Cape Town Junior Chess League Finals 2023 (U20A)	2023-09-16	2023-09-16	Rapid	Cape Town (WCT)	7	1	1	Yes	Analysis
3	Cape Town Junior Chess League - Round 1 2023 (U20)	2023-07-22	2023-07-22	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
4	Cape Town Junior Chess League Q1 2023	2023-05-13	2023-05-13	Rapid	Cape Town (WCT)	7	7	2	Yes	Analysis
5	2022 Western Province Club League (D)	2022-08-27	2022-10-01	Standard	Cape Town (WCT)	7	3	1	Yes	Analysis
6	South African Open 2022 (U20)	2022-07-11	2022-07-13	Standard	Cape Town (WCT)	6	0	0	No	Analysis
7	Western Cape Schools Chess 2022 (U18 Girls)	2022-05-07	2022-05-08	Standard	Eden (WEG)	6	6	2	Yes	Analysis

#	Games	Start				End
1	2	Tournament 2022 Western Province Club League				Tournament Cape Town Junior Chess League Q1 2023
		date 2022-08-27	rnd 3	type Standard	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Quickfall, Z (Zoe)				Opponent Grove, T (Tyler)
2	1	Tournament Western Cape Closed 2025				Tournament Western Cape Closed 2025
		date 2025-03-09	rnd 6	type Standard	result 1	date 2025-03-09	rnd 6	type Standard	result 1
		Opponent Tyokwana, K (Khayone)				Opponent Tyokwana, K (Khayone)
3	1	Tournament Cape Town Junior Chess League Finals 2023				Tournament Cape Town Junior Chess League Finals 2023
		date 2023-09-16	rnd 7	type Rapid	result 1	date 2023-09-16	rnd 7	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Rubusana, O (Onako)

#	Games	Start				End
1	1	Tournament Western Cape Closed 2025				Tournament Western Cape Closed 2025
		date 2025-03-09	rnd 6	type Standard	result 1	date 2025-03-09	rnd 6	type Standard	result 1
		Opponent Tyokwana, K (Khayone)				Opponent Tyokwana, K (Khayone)
2	1	Tournament 2022 Western Province Club League				Tournament 2022 Western Province Club League
		date 2022-08-27	rnd 3	type Standard	result 1	date 2022-08-27	rnd 3	type Standard	result 1
		Opponent Quickfall, Z (Zoe)				Opponent Quickfall, Z (Zoe)
3	1	Tournament Western Cape Schools Chess 2022				Tournament Western Cape Schools Chess 2022
		date 2022-05-08	rnd 5	type Standard	result 1	date 2022-05-08	rnd 5	type Standard	result 1
		Opponent Bokwana, W (Wilmarie)				Opponent Bokwana, W (Wilmarie)

#	Games	Start				End
1	1	Tournament Cape Town Junior Chess League Finals 2023				Tournament Cape Town Junior Chess League Finals 2023
		date 2023-09-16	rnd 7	type Rapid	result 1	date 2023-09-16	rnd 7	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Rubusana, O (Onako)
2	1	Tournament Cape Town Junior Chess League - Round 1 2023				Tournament Cape Town Junior Chess League - Round 1 2023
		date 2023-07-22	rnd 6	type Rapid	result 1	date 2023-07-22	rnd 6	type Rapid	result 1
		Opponent Matthee, C (Connor)				Opponent Matthee, C (Connor)
3	1	Tournament Cape Town Junior Chess League - Round 1 2023				Tournament Cape Town Junior Chess League - Round 1 2023
		date 2023-07-22	rnd 3	type Rapid	result 1	date 2023-07-22	rnd 3	type Rapid	result 1
		Opponent Roji, C (Cwenga)				Opponent Roji, C (Cwenga)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament 2022 Western Province Club League				Tournament Cape Town Junior Chess League Q1 2023
		date 2022-08-27	rnd 3	type Standard	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Quickfall, Z (Zoe)				Opponent Grove, T (Tyler)
2	1	Tournament Western Cape Closed 2025				Tournament Western Cape Closed 2025
		date 2025-03-09	rnd 6	type Standard	result 1	date 2025-03-09	rnd 6	type Standard	result 1
		Opponent Tyokwana, K (Khayone)				Opponent Tyokwana, K (Khayone)
3	1	Tournament Cape Town Junior Chess League Finals 2023				Tournament Cape Town Junior Chess League Finals 2023
		date 2023-09-16	rnd 7	type Rapid	result 1	date 2023-09-16	rnd 7	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Rubusana, O (Onako)

#	Games	Start				End
1	1	Tournament Western Cape Closed 2025				Tournament Western Cape Closed 2025
		date 2025-03-09	rnd 6	type Standard	result 1	date 2025-03-09	rnd 6	type Standard	result 1
		Opponent Tyokwana, K (Khayone)				Opponent Tyokwana, K (Khayone)
2	1	Tournament 2022 Western Province Club League				Tournament 2022 Western Province Club League
		date 2022-08-27	rnd 3	type Standard	result 1	date 2022-08-27	rnd 3	type Standard	result 1
		Opponent Quickfall, Z (Zoe)				Opponent Quickfall, Z (Zoe)
3	1	Tournament Western Cape Schools Chess 2022				Tournament Western Cape Schools Chess 2022
		date 2022-05-08	rnd 5	type Standard	result 1	date 2022-05-08	rnd 5	type Standard	result 1
		Opponent Bokwana, W (Wilmarie)				Opponent Bokwana, W (Wilmarie)

#	Games	Start				End
1	1	Tournament Cape Town Junior Chess League Finals 2023				Tournament Cape Town Junior Chess League Finals 2023
		date 2023-09-16	rnd 7	type Rapid	result 1	date 2023-09-16	rnd 7	type Rapid	result 1
		Opponent Rubusana, O (Onako)				Opponent Rubusana, O (Onako)
2	1	Tournament Cape Town Junior Chess League - Round 1 2023				Tournament Cape Town Junior Chess League - Round 1 2023
		date 2023-07-22	rnd 6	type Rapid	result 1	date 2023-07-22	rnd 6	type Rapid	result 1
		Opponent Matthee, C (Connor)				Opponent Matthee, C (Connor)
3	1	Tournament Cape Town Junior Chess League - Round 1 2023				Tournament Cape Town Junior Chess League - Round 1 2023
		date 2023-07-22	rnd 3	type Rapid	result 1	date 2023-07-22	rnd 3	type Rapid	result 1
		Opponent Roji, C (Cwenga)				Opponent Roji, C (Cwenga)

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	De Wit ,M (Marnus)	2	0	-425	0	0	0	2	0	-425	0	0	0
1	De Wit ,M (Marnus)	2	1488.5	1063.5	0	0	0	2	1196	1063.5	0	0	0
2	Bokwana ,W (Wilmarie)	1	1	425	1	1	425	0	0	0	0	0	0
2	Bokwana ,W (Wilmarie)	1	1175.2	1600.2	1	1166.1	1600.2	0	0	0	0	0	0
3	Tyokwana ,K (Khayone)	1	1	425	1	1	425	0	0	0	0	0	0
3	Tyokwana ,K (Khayone)	1	1243.6	1668.6	1	1258.8	1668.6	0	0	0	0	0	0
4	Haarhoff ,T (Tsoanello)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Haarhoff ,T (Tsoanello)	1	898.6	473.6	1	933.6	473.6	0	0	0	0	0	0
5	Alexander ,TD (Tristan Dean)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Alexander ,TD (Tristan Dean)	1	682.7	257.7	1	821	257.7	0	0	0	0	0	0
6	Ndavala ,J (Jeffline)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Ndavala ,J (Jeffline)	1	1124.7	699.7	1	1108.2	699.7	0	0	0	0	0	0
7	Pekeur ,A (Amy)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Pekeur ,A (Amy)	1	1030.7	605.7	1	1030	605.7	0	0	0	0	0	0
8	Sihamba ,S (Somila)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Sihamba ,S (Somila)	1	1332.5	907.5	1	1346.8	907.5	0	0	0	0	0	0
9	Swarts ,P (Paul)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Swarts ,P (Paul)	1	1221.9	796.9	1	1214.8	796.9	0	0	0	0	0	0
10	Quickfall ,Z (Zoe)	1	1	425	1	1	425	0	0	0	0	0	0
10	Quickfall ,Z (Zoe)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Coetzee, C (Chelsy)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms