Chess South Africa Ratings Database

PLAYER PAGE

Personal

Kersouw, A (Althea)

Chess SA id

2150192641

FIDE id

Date of birth

2015-10-11 (U12)

Gender

Female

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-18

Personal details last changed

1900-01-01

Junior GPX Games

14.5

Junior GPX Points

1076.6

Item	Main	Standard	Rapid	Blitz
Rating	1188.4	1206.2	1200.1	1200
Raw rating	1188.4	1205.8	1200.1	1200
Weighted rating	1188.4	1206.2	1185.2	1200
Weighted performance	1032.9	0	0	0
Floor	706	711.6	700.1	700
K-factor	36	36	36	36
Min/Max rating change allowed	168.6	164.4	165.8	165.8
Highest rating	1206 2025-04-01	1249.4 2024-09-01	1200.1 2025-03-01	1200 2024-02-01
Highest raw rating	1206 2025-04-01	1211.6 2025-04-01	1200.1 2025-03-01	1200 2024-02-01
Highest weighted rating	1206 2024-02-01	1211.6 2025-05-05	1200.1 2024-02-01	1200 2024-02-01
Highest weighted performance	1200 2024-12-01	1249.4 2024-09-01	1200 2024-12-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0.1	0.1	0	0
New rating	1188.5	1206.3	1200.1	1200
Analysis
Rating	1188.4	1206.2	1200.1	1200
Raw rating	1188.4	1205.8	1200.1	1200
Weighted rating	1188.4	1206.2	1185.2
Weighted performance	1032.9	0	0
K-factor	36	36	36	36
Floor	706	711.6	700.1	700
Max/Min rating change allowed	168.6	164.4	165.8	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	1188.4	1205.8	1200.1	1200
New weighted rating	1188.5	1206.3	1186.8	1200
New weighted performance	1026.3	0	0	0
Temp new rating	1188.5	1206.3	1200.1	1200
Temp new rating +/-	0.1	0.1	0	0
Final new rating +/-	0.1	0.1	0	0
New rating	1188.5	1206.3	1200.1	1200
New K-factor	36	36	36	36
New floor	706	711.6	700.1	700

Item	Main	Standard	Rapid
	0	0	0
	17	12	5
	21	5	16
	0	0	0
	0	0	0
	0	0	0
History	38	17	21

Games since
	Main 38	Standard 17		Rapid 21		Blitz 0
Gender	Female
Age group	U12
Region	West Coast (WCU)
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	-1		-1		-1
Female	-1		-1		-1
U12	-1		-1		-1
U12 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1659		822		200
Female	366		201		61
U12	317		169		43
U12 Female	96		58		21
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	17	7	41.18	-75	1225.9	1150.9
Standard	12	4	33.33	-141.7	1232	1090.3
Rapid	5	3	60	85	1211.5	1296.5
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	38	16.5	43.42	-55.9	1211.1	1155.2
Standard	17	6.5	38.24	-100	1239.5	1139.5
Rapid	21	10	47.62	-20.2	1188.2	1167.9
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1188.4	1205.8	1200.1	1200
2025-09-30	1188.4	1205.8	1200.1	1200
2025-09-01	1188.4	1205.8	1200.1	1200
2025-08-01	1188.4	1205.8	1200.1	1200
2025-07-01	1188.3	1205.3	1200.1	1200
2025-06-01	1186	1201.1	1200.1	1200
2025-05-01	1206	1211.6	1200.1	1200
2025-04-01	1206	1211.6	1200.1	1200
2025-03-01	1202.3	1210	1200.1	1200
2025-02-01	1187.5	1210	1170.3	1200
2025-01-01	1187.5	1210	1164.8	1200
2024-12-01	1187.5	1210	1164.8	1200
2024-11-01	1187.5	1210	1164.8	1200
2024-10-01	1187.5	1210	1164.8	1200
2024-09-01	1172.6	1200	1164.8	1200
2024-08-01	1169	1200	1146.4	1200
2024-07-01	1169	1200	1146.4	1200
2024-09-01	1169	1200	1146.4	1200
2024-05-01	1169	1200	1146.4	1200
2024-04-01	1169	1200	1146.4	1200
2024-03-01	1197.8	1200	1192.8	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	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 (U11 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	1	Yes	Analysis
2	West Coast Schools Chess Prestige 2025 (U11 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
3	Lower West Coast Prestige 2025 (U11 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	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 (U11 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	1	Yes	Analysis
2	West Coast Schools Chess Prestige 2025 (U11 Girls)	2025-03-08	2025-03-08	Standard	West Coast (WCU)	6	6	3	Yes	Analysis
3	Lower West Coast Prestige 2025 (U11 Girls)	2025-02-22	2025-02-22	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
4	Western Cape Top Schools Championship 2024 (U9 Mixed)	2024-08-30	2024-09-01	Standard	Eden (WEG)	6	5	2.5	Yes	Analysis
5	Pedro Booyse Top Schools Championships 2024 (U7+U9)	2024-07-20	2024-07-20	Rapid	West Coast (WCU)	7	6	3	Yes	Analysis
6	West Coast Schools Chess Prestige Championships 2024 (U9 Girls)	2024-03-09	2024-03-09	Rapid	West Coast (WCU)	5	5	1.5	Yes	Analysis
7	Lower West Coast Schools Chess Prestige 2024 (U9 Girls)	2024-02-17	2024-02-17	Rapid	West Coast (WCU)	5	5	2.5	Yes	Analysis

#	Games	Start				End
1	3	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 1	type Standard	result 1	date 2024-08-30	rnd 3	type Standard	result 0.5
		Opponent Pieterse, A (Andre)				Opponent Zhang, M (Ming Xuan Jesse)
2	3	Tournament Pedro Booyse Top Schools Championships 2024				Tournament Pedro Booyse Top Schools Championships 2024
		date 2024-07-20	rnd 3	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Afrika, N (Nazley)				Opponent Snyman, J (Jerran)
3	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Julies, J (Jazne)				Opponent Lukas, I (Isune)

#	Games	Start				End
1	3	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 1	type Standard	result 1	date 2024-08-30	rnd 3	type Standard	result 0.5
		Opponent Pieterse, A (Andre)				Opponent Zhang, M (Ming Xuan Jesse)
2	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Julies, J (Jazne)				Opponent Lukas, I (Isune)
3	1	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-18	rnd 5	type Standard	result 1	date 2025-05-18	rnd 5	type Standard	result 1
		Opponent Claassen, U (Ugenay)				Opponent Claassen, U (Ugenay)

#	Games	Start				End
1	3	Tournament Pedro Booyse Top Schools Championships 2024				Tournament Pedro Booyse Top Schools Championships 2024
		date 2024-07-20	rnd 3	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Afrika, N (Nazley)				Opponent Snyman, J (Jerran)
2	2	Tournament Lower West Coast Prestige 2025				Tournament Lower West Coast Prestige 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Esbach, L (Lemischka)				Opponent Swarts, U (Umaree)
3	2	Tournament Lower West Coast Schools Chess Prestige 2024				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Van Staden, M (Monique)				Opponent Minnaar, M (Maxine)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament Pedro Booyse Top Schools Championships 2024				Tournament Pedro Booyse Top Schools Championships 2024
		date 2024-07-20	rnd 3	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Afrika, N (Nazley)				Opponent Snyman, J (Jerran)
2	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Julies, J (Jazne)				Opponent Lukas, I (Isune)
3	2	Tournament Lower West Coast Prestige 2025				Tournament Lower West Coast Prestige 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Esbach, L (Lemischka)				Opponent Swarts, U (Umaree)

#	Games	Start				End
1	2	Tournament West Coast Schools Chess Prestige 2025				Tournament West Coast Schools Chess Prestige 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-08	rnd 3	type Standard	result 1
		Opponent Julies, J (Jazne)				Opponent Lukas, I (Isune)
2	2	Tournament Western Cape Top Schools Championship 2024				Tournament Western Cape Top Schools Championship 2024
		date 2024-08-30	rnd 1	type Standard	result 1	date 2024-08-30	rnd 2	type Standard	result 1
		Opponent Pieterse, A (Andre)				Opponent Schonwetter, H (Harper)
3	1	Tournament Western Cape Schools Individual Championship 2025				Tournament Western Cape Schools Individual Championship 2025
		date 2025-05-18	rnd 5	type Standard	result 1	date 2025-05-18	rnd 5	type Standard	result 1
		Opponent Claassen, U (Ugenay)				Opponent Claassen, U (Ugenay)

#	Games	Start				End
1	3	Tournament Pedro Booyse Top Schools Championships 2024				Tournament Pedro Booyse Top Schools Championships 2024
		date 2024-07-20	rnd 3	type Rapid	result 1	date 2024-07-20	rnd 5	type Rapid	result 1
		Opponent Afrika, N (Nazley)				Opponent Snyman, J (Jerran)
2	2	Tournament Lower West Coast Prestige 2025				Tournament Lower West Coast Prestige 2025
		date 2025-02-22	rnd 1	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Esbach, L (Lemischka)				Opponent Swarts, U (Umaree)
3	2	Tournament Lower West Coast Schools Chess Prestige 2024				Tournament Lower West Coast Schools Chess Prestige 2024
		date 2024-02-17	rnd 4	type Rapid	result 1	date 2024-02-17	rnd 5	type Rapid	result 1
		Opponent Van Staden, M (Monique)				Opponent Minnaar, M (Maxine)

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	Swartz ,U (Umaree)	3	1	-141.7	1	0	-425	2	1	0	0	0	0
1	Swartz ,U (Umaree)	3	1254.7	1113	1	1247.9	829.7	2	1234.7	1254.7	0	0	0
2	Lukas ,I (Isune)	2	1	0	2	1	0	0	0	0	0	0	0
2	Lukas ,I (Isune)	2	1234.3	1234.3	2	1201.8	1234.3	0	0	0	0	0	0
3	Kotze ,L (Luquezia)	2	1	0	1	1	425	1	0	-425	0	0	0
3	Kotze ,L (Luquezia)	2	1149.2	1149.2	1	1135.6	1574.2	1	1191.1	724.2	0	0	0
4	Kleynhans ,M (Miecke)	2	0	-425	1	0	-425	1	0	-425	0	0	0
4	Kleynhans ,M (Miecke)	2	1216.6	791.6	1	1268.9	791.6	1	1194.6	791.6	0	0	0
5	Van Staden ,M (Monique)	2	2	425	0	0	0	2	2	425	0	0	0
5	Van Staden ,M (Monique)	2	1176	1601	0	0	0	2	1160	1601	0	0	0
6	Pieterse ,A (Andre)	1	1	425	1	1	425	0	0	0	0	0	0
6	Pieterse ,A (Andre)	1	1261.2	1686.2	1	1268.7	1686.2	0	0	0	0	0	0
7	Nehumba ,A (Ayanna)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Nehumba ,A (Ayanna)	1	1242	817	1	1256.5	817	0	0	0	0	0	0
8	Meyer ,I (Isabella)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Meyer ,I (Isabella)	1	1315.4	890.4	1	1311.5	890.4	0	0	0	0	0	0
9	Lehlalha ,N (Naledi)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Lehlalha ,N (Naledi)	1	1243.6	818.6	1	1266.4	818.6	0	0	0	0	0	0
10	Zhang ,M (Ming Xuan Jesse)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
10	Zhang ,M (Ming Xuan Jesse)	1	1233.2	1233.2	1	1217.2	1233.2	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

Kersouw, A (Althea)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms