Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, C (Cecilia)

Chess SA id

209091639

FIDE id

Date of birth

2009-02-07 (U18)

Gender

Female

Region

Overberg (WOS)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-03-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1234.9	1211.2	1229.6	1200
Raw rating	1234.9	1211.2	1229.6	1200
Weighted rating	1234.4	1210.8	1228.7	1200
Weighted performance	952.6	0	0	0
Floor	734.9	711.2	729.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	157.8	163.2	159	165.8
Highest rating	1234.9 2024-04-01	1213.5 2024-03-01	1229.6 2024-03-01	1200 2018-10-01
Highest raw rating	1234.9 2024-04-01	1211.2 2024-04-01	1229.6 2024-03-01	1200 2024-03-01
Highest weighted rating	1233.3 2025-08-01	1210.2 2025-08-01	1226.3 2025-08-01	1200 2018-10-01
Highest weighted performance	1211.6 2024-03-01	1213.5 2024-03-01	1200 2019-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1234.9	1211.2	1229.6	1200
Analysis
Rating	1234.9	1211.2	1229.6	1200
Raw rating	1234.9	1211.2	1229.6	1200
Weighted rating	1234.4	1210.8	1228.7
Weighted performance	952.6	0	0
K-factor	36	36	36	36
Floor	734.9	711.2	729.6	700
Max/Min rating change allowed	157.8	163.2	159	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	1234.9	1211.2	1229.6	1200
New weighted rating	1234.6	1211	1229.1	1200
New weighted performance	945.4	0	0	0
Temp new rating	1234.9	1211.2	1229.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1234.9	1211.2	1229.6	1200
New K-factor	36	36	36	36
New floor	734.9	711.2	729.6	700

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	16	11	5
	10	0	10
	0	0	0
	0	0	0
History	31	11	20

Games since
	Main 16	Standard 11		Rapid 5		Blitz 0
Gender	Female
Age group	U18
Region	Overberg (WOS)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U18	-1		-1		-1
U18 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	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	26	14	53.85	32.7	1240.8	1273.4
Standard	11	5	45.45	-38.6	1278.2	1239.5
Rapid	15	9	60	85	1213.3	1298.3
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1234.9	1211.2	1229.6	1200
2025-09-30	1234.9	1211.2	1229.6	1200
2025-09-01	1234.9	1211.2	1229.6	1200
2025-08-01	1234.9	1211.2	1229.6	1200
2025-07-01	1234.9	1211.2	1229.6	1200
2025-06-01	1234.9	1211.2	1229.6	1200
2025-05-01	1234.9	1211.2	1229.6	1200
2025-04-01	1234.9	1211.2	1229.6	1200
2025-03-01	1234.9	1211.2	1229.6	1200
2025-02-01	1234.9	1211.2	1229.6	1200
2025-01-01	1234.9	1211.2	1229.6	1200
2024-12-01	1234.9	1211.2	1229.6	1200
2024-11-01	1234.9	1211.2	1229.6	1200
2024-10-01	1234.9	1211.2	1229.6	1200
2024-09-01	1234.9	1211.2	1229.6	1200
2024-08-01	1234.9	1211.2	1229.6	1200
2024-07-01	1234.9	1211.2	1229.6	1200
2024-09-01	1234.9	1211.2	1229.6	1200
2024-05-01	1234.9	1211.2	1229.6	1200
2024-04-01	1234.9	1211.2	1229.6	1200
2024-03-01	1229.8	1200	1229.6	1200
2024-02-01	1213.4	1200	1182.8	1200
2024-01-01	1213.4	1200	1182.8	1200
2023-12-01	1213.4	1200	1182.8	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	Western Cape HS Individuals Championship 2024 (U15 Girls)	2024-03-21	2024-03-22	Standard	Overberg (WOS)	6	6	2	Yes	Analysis
2	Overberg High Schools Trails 2024 (U15 Girls)	2024-03-02	2024-03-02	Standard	Overberg (WOS)	5	5	3	Yes	Analysis
3	Overberg High Schools Trails 2024 (U15)	2024-02-24	2024-02-24	Rapid	Overberg (WOS)	5	5	3.5	Yes	Analysis
4	Overberg High Schools Trails 2023 (U15)	2023-02-24	2023-02-24	Rapid	Overberg (WOS)	5	5	2.5	Yes	Analysis
5	Overberg Schools Open Tournament 2023 (U14)	2023-02-11	2023-02-11	Rapid	Overberg (WOS)	5	5	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-03-21	rnd 1	type Standard	result 1
		Opponent Rasekgololo, A (Ayanda)				Opponent Reynard, R (Ree-Shaan)
2	3	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2024
		date 2023-02-24	rnd 5	type Rapid	result 0.5	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Shepherd, J (John-William)				Opponent Koopman, K (Keagan)
3	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 Byrne, R (Russel)				Opponent Rossouw, JE (Janko Ederik)

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-03-21	rnd 1	type Standard	result 1
		Opponent Rasekgololo, A (Ayanda)				Opponent Reynard, R (Ree-Shaan)
2	1	Tournament Western Cape HS Individuals Championship 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-22	rnd 5	type Standard	result 1	date 2024-03-22	rnd 5	type Standard	result 1
		Opponent Moos, N (Neith-Lynn)				Opponent Moos, N (Neith-Lynn)
3	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 Van Rooyen, J (Janel)				Opponent Van Rooyen, J (Janel)

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2023				Tournament Overberg High Schools Trails 2024
		date 2023-02-24	rnd 5	type Rapid	result 0.5	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Shepherd, J (John-William)				Opponent Koopman, K (Keagan)
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 Byrne, R (Russel)				Opponent Rossouw, JE (Janko Ederik)
3	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 1	type Rapid	result 1
		Opponent Van Uystel, H (Hanco)				Opponent Stratford, E (Emily)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-03-21	rnd 1	type Standard	result 1
		Opponent Rasekgololo, A (Ayanda)				Opponent Reynard, R (Ree-Shaan)
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 Byrne, R (Russel)				Opponent Rossouw, JE (Janko Ederik)
3	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 1	type Rapid	result 1
		Opponent Van Uystel, H (Hanco)				Opponent Stratford, E (Emily)

#	Games	Start				End
1	3	Tournament Overberg High Schools Trails 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-02	rnd 4	type Standard	result 1	date 2024-03-21	rnd 1	type Standard	result 1
		Opponent Rasekgololo, A (Ayanda)				Opponent Reynard, R (Ree-Shaan)
2	1	Tournament Western Cape HS Individuals Championship 2024				Tournament Western Cape HS Individuals Championship 2024
		date 2024-03-22	rnd 5	type Standard	result 1	date 2024-03-22	rnd 5	type Standard	result 1
		Opponent Moos, N (Neith-Lynn)				Opponent Moos, N (Neith-Lynn)
3	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 Van Rooyen, J (Janel)				Opponent Van Rooyen, J (Janel)

#	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 Byrne, R (Russel)				Opponent Rossouw, JE (Janko Ederik)
2	2	Tournament Overberg Schools Open Tournament 2023				Tournament Overberg High Schools Trails 2023
		date 2023-02-11	rnd 5	type Rapid	result 1	date 2023-02-24	rnd 1	type Rapid	result 1
		Opponent Van Uystel, H (Hanco)				Opponent Stratford, E (Emily)
3	1	Tournament Overberg High Schools Trails 2024				Tournament Overberg High Schools Trails 2024
		date 2024-02-24	rnd 2	type Rapid	result 1	date 2024-02-24	rnd 2	type Rapid	result 1
		Opponent Koopman, K (Keagan)				Opponent Koopman, K (Keagan)

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	Linde ,M (Morgan)	2	0	-425	1	0	-425	1	0	-425	0	0	0
1	Linde ,M (Morgan)	2	1317.2	892.2	1	1281.4	892.2	1	1262.1	892.2	0	0	0
2	Van Rooyen ,J (Janel)	1	1	425	1	1	425	0	0	0	0	0	0
2	Van Rooyen ,J (Janel)	1	1160	1585	1	1200	1585	0	0	0	0	0	0
3	Golding ,E (Elnichia)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Golding ,E (Elnichia)	1	1454.7	1029.7	1	1438.6	1029.7	0	0	0	0	0	0
4	Pekeur ,N (Nicole)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Pekeur ,N (Nicole)	1	1143.1	718.1	1	1089.4	718.1	0	0	0	0	0	0
5	Makhasi ,A (Athule)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Makhasi ,A (Athule)	1	1361.2	936.2	1	1356.3	936.2	0	0	0	0	0	0
6	Moos ,N (Neith-Lynn)	1	1	425	1	1	425	0	0	0	0	0	0
6	Moos ,N (Neith-Lynn)	1	1121	1546	1	1109	1546	0	0	0	0	0	0
7	Farmer ,J (Jaydean)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Farmer ,J (Jaydean)	1	1385.4	960.4	1	1320.7	960.4	0	0	0	0	0	0
8	Musakwa ,C (Courtney)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Musakwa ,C (Courtney)	1	1262.3	837.3	1	1254.7	837.3	0	0	0	0	0	0
9	Rasekgololo ,A (Ayanda)	1	1	425	1	1	425	0	0	0	0	0	0
9	Rasekgololo ,A (Ayanda)	1	1181.2	1606.2	1	1175.1	1606.2	0	0	0	0	0	0
10	Van Uystel ,H (Hanco)	1	1	425	0	0	0	1	1	425	0	0	0
10	Van Uystel ,H (Hanco)	1	1200	1625	0	0	0	1	1200	1625	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

De Villiers, C (Cecilia)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms