Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Villiers, A (Annabella)

Chess SA id

2140316205

FIDE id

Date of birth

2014-08-26 (U14)

Gender

Female

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1283.1	1233.6	1278.6	1200
Raw rating	1283.1	1233.6	1278.6	1200
Weighted rating	1228.7	1211.2	1228.1	1200
Weighted performance	1234.6	1210.8	0	0
Floor	783.1	733.6	778.6	700
K-factor	36	36	36	36
Min/Max rating change allowed	147.3	158.1	148.2	165.8
Highest rating	1283.1 2025-11-01	1237.2 2025-11-01	1278.6 2025-11-01	1200 2025-03-01
Highest raw rating	1283.1 2025-11-01	1233.6 2025-11-01	1278.6 2025-11-01	1200 2025-03-01
Highest weighted rating	1217.3 2025-11-01	1206.6 2025-11-01	1217.3 2025-11-01	1200 2025-03-01
Highest weighted performance	1261.2 2025-11-01	1237.2 2025-11-01	0 1900-01-01	0 1900-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1283.1	1233.6	1278.6	1200
Analysis
Rating	1283.1	1233.6	1278.6	1200
Raw rating	1283.1	1233.6	1278.6	1200
Weighted rating	1228.7	1211.2	1228.1
Weighted performance	1234.6	1210.8	0
K-factor	36	36	36	36
Floor	783.1	733.6	778.6	700
Max/Min rating change allowed	147.3	158.1	148.2	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	1283.1	1233.6	1278.6	1200
New weighted rating	1234	1213.4	1233.1	1200
New weighted performance	1226.3	1202.6	0	0
Temp new rating	1283.1	1233.6	1278.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1283.1	1233.6	1278.6	1200
New K-factor	36	36	36	36
New floor	783.1	733.6	778.6	700

Item	Main	Standard	Rapid
	0	0	0
	39	30	9
	0	0	0
	0	0	0
	0	0	0
	0	0	0
History	39	30	9

Games since
	Main 39	Standard 30		Rapid 9		Blitz 0
Gender	Female
Age group	U12
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	3797		1076		148
Female	857		315		51
U12	607		172		22
U12 Female	178		66		10
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 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	39	19.5	50	0	1285.6	1285.6
Standard	30	13	43.33	-56.7	1292.7	1236
Rapid	9	6.5	72.22	188.9	1261.8	1450.7
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	39	19.5	50	0	1285.6	1285.6
Standard	30	13	43.33	-56.7	1292.7	1236
Rapid	9	6.5	72.22	188.9	1261.8	1450.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2026-01-01	1283.1	1233.6	1278.6	1200
2025-11-30	1283.1	1233.6	1278.6	1200
2025-11-01	1283.1	1233.6	1278.6	1200
2025-09-30	1228.4	1178.8	1273.6	1200
2025-09-01	1257.1	1210.5	1273.6	1200
2025-08-01	1209.8	1210.5	1200	1200
2025-07-01	1209.8	1210.5	1200	1200
2025-06-01	1209.8	1210.5	1200	1200
2025-05-01	1220.4	1223.9	1200	1200
2025-04-01	1220.4	1223.9	1200	1200
2025-03-01	1198.8	1198.5	1200	1200
2025-02-01	1200	1200	1200	1200
2025-01-01	1200	1200	1200	1200
2024-12-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-11-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	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	Worcester Schools Knock-Out 2025 (U11 Girls)	2025-10-18	2025-10-18	Rapid	Cape Winelands (WCW)	6	5	2.5	Yes	Analysis
2	Worcester Library - Holiday Oct 2025	2025-10-08	2025-10-08	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
3	Worcester Chess Club 2025	2025-10-07	2025-10-07	Standard	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
4	Western Cape Schools - Top Schools 2025 (U11)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
5	Cape Winelands Top Schools 2025 (U9+U11)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	4	4	4	Yes	Analysis
6	Western Cape Schools Individual Championship 2025 (U11 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
7	Cape Winelands Schools Prestige 2025 (U11 Girls)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
8	Cape Winelands Schools - Trials 1 2025 (U11 Girls)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament Worcester Library - Holiday Oct 2025				Tournament Worcester Library - Holiday Oct 2025
		date 2025-10-08	rnd 2	type Standard	result 1	date 2025-10-08	rnd 5	type Standard	result 0.5
		Opponent Baadjies, Q (Qiana)				Opponent Naude, A (Ariel)
2	4	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Edons, E (Elijah)				Opponent Snyman, J (Jovanni)
3	3	Tournament Worcester Schools Knock-Out 2025				Tournament Worcester Schools Knock-Out 2025
		date 2025-10-18	rnd 2	type Rapid	result 1	date 2025-10-18	rnd 4	type Rapid	result 1
		Opponent Visser, A (Amiera)				Opponent Baadjies, Q (Qiana)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Adams, L (Lo-Keisha)				Opponent Visser, E (Engela)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 6	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Snyman, A (Andre)				Opponent Snyman, A (Andre)
3	1	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Saayman, B (Barendina)				Opponent Saayman, B (Barendina)

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Edons, E (Elijah)				Opponent Snyman, J (Jovanni)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Edons, E (Elijah)				Opponent Snyman, J (Jovanni)
2	3	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Adams, L (Lo-Keisha)				Opponent Visser, E (Engela)
3	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 6	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Snyman, A (Andre)				Opponent Snyman, A (Andre)

#	Games	Start				End
1	3	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 4	type Standard	result 1
		Opponent Adams, L (Lo-Keisha)				Opponent Visser, E (Engela)
2	1	Tournament Western Cape Schools - Top Schools 2025				Tournament Western Cape Schools - Top Schools 2025
		date 2025-09-07	rnd 6	type Standard	result 1	date 2025-09-07	rnd 6	type Standard	result 1
		Opponent Snyman, A (Andre)				Opponent Snyman, A (Andre)
3	1	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-17	rnd 4	type Standard	result 1	date 2025-05-17	rnd 4	type Standard	result 1
		Opponent Saayman, B (Barendina)				Opponent Saayman, B (Barendina)

#	Games	Start				End
1	4	Tournament Cape Winelands Top Schools 2025				Tournament Cape Winelands Top Schools 2025
		date 2025-08-23	rnd 1	type Rapid	result 1	date 2025-08-23	rnd 4	type Rapid	result 1
		Opponent Edons, E (Elijah)				Opponent Snyman, J (Jovanni)

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	Baadjies ,Q (Qiana)	3	2	141.7	2	1	0	1	1	425	0	0	0
1	Baadjies ,Q (Qiana)	3	1181.5	1323.2	2	1108	1181.5	1	1253.7	1606.5	0	0	0
2	Sedan ,A (Abubacker)	2	2	425	2	2	425	0	0	0	0	0	0
2	Sedan ,A (Abubacker)	2	1209.8	1634.8	2	1200	1634.8	0	0	0	0	0	0
3	Van Der Westhuizen ,L (Linli)	2	0	-425	2	0	-425	0	0	0	0	0	0
3	Van Der Westhuizen ,L (Linli)	2	1559.4	1134.4	2	1551.5	1134.4	0	0	0	0	0	0
4	Verwoerd ,A (Anieke)	2	1.5	212.5	1	1	425	1	0.5	0	0	0	0
4	Verwoerd ,A (Anieke)	2	1259.3	1471.8	1	1226.3	1684.3	1	1192.6	1259.3	0	0	0
5	Fortuin ,P (Pearl)	2	1	0	1	0	-425	1	1	425	0	0	0
5	Fortuin ,P (Pearl)	2	1187.7	1187.7	1	1178.4	762.7	1	1200	1612.7	0	0	0
6	Masikane ,L (Lunathi)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Masikane ,L (Lunathi)	1	1277.4	852.4	1	1245.6	852.4	0	0	0	0	0	0
7	Naude ,A (Ariel)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
7	Naude ,A (Ariel)	1	1290.1	1290.1	1	1245.8	1290.1	0	0	0	0	0	0
8	Van Der Merwe ,D (Danielle)	1	1	425	1	1	425	0	0	0	0	0	0
8	Van Der Merwe ,D (Danielle)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
9	Saayman ,B (Barendina)	1	1	425	1	1	425	0	0	0	0	0	0
9	Saayman ,B (Barendina)	1	1276.8	1701.8	1	1296.4	1701.8	0	0	0	0	0	0
10	Nzaramba ,J (Joshua Ishimwe)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Nzaramba ,J (Joshua Ishimwe)	1	1318.6	893.6	1	1252.8	893.6	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

De Villiers, A (Annabella)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms