Chess South Africa Ratings Database

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Personal

Nehumba, A (Ayanna)

Chess SA id

2140158925

FIDE id

Date of birth

2014-05-27 (U12)

Gender

Female

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-31

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1294.3

Item	Main	Standard	Rapid	Blitz
Rating	1232.1	1235.7	1163.6	1200
Raw rating	1232.1	1235.7	1163.6	1200
Weighted rating	1210.7	1223.9	1155.1	1200
Weighted performance	1088.5	0	0	0
Floor	742	756.5	740	700
K-factor	36	36	36	36
Min/Max rating change allowed	158.4	157.6	174.6	165.8
Highest rating	1381.5 2023-07-01	1256.5 2025-04-01	1450.6 2023-07-01	1200 2018-10-01
Highest raw rating	1242 2025-04-01	1256.5 2025-04-01	1240 2024-03-01	1200 2024-03-01
Highest weighted rating	1242 2024-04-01	1218.2 2025-08-01	1240 2024-04-01	1200 2018-10-01
Highest weighted performance	1381.5 2023-07-01	1200 2024-03-01	1450.6 2023-07-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1232.1	1235.7	1163.6	1200
Analysis
Rating	1232.1	1235.7	1163.6	1200
Raw rating	1232.1	1235.7	1163.6	1200
Weighted rating	1210.7	1223.9	1155.1
Weighted performance	1088.5	0	0
K-factor	36	36	36	36
Floor	742	756.5	740	700
Max/Min rating change allowed	158.4	157.6	174.6	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	1232.1	1235.7	1163.6	1200
New weighted rating	1212.9	1225.5	1155	1200
New weighted performance	1081.4	0	0	0
Temp new rating	1232.1	1235.7	1163.6	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1232.1	1235.7	1163.6	1200
New K-factor	36	36	36	36
New floor	742	756.5	740	700

Item	Main	Standard	Rapid
	0	0	0
	20	20	0
	6	0	6
	4	0	4
	0	0	0
	0	0	0
History	30	20	10

Games since
	Main 26	Standard 20		Rapid 6		Blitz 0
Gender	Female
Age group	U12
Region	Cape Town (WCT)
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	-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	20	9	45	-42.5	1328.7	1286.2
Standard	20	9	45	-42.5	1328.7	1286.2
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	30	12	40	-85	1297.4	1212.4
Standard	20	9	45	-42.5	1328.7	1286.2
Rapid	10	3	30	-170	1235	1065
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1232.1	1235.7	1163.6	1200
2025-09-30	1232.1	1235.7	1163.6	1200
2025-09-01	1232.1	1235.7	1163.6	1200
2025-08-01	1232.1	1235.7	1163.6	1200
2025-07-01	1232.1	1235.7	1163.6	1200
2025-06-01	1230.1	1236.2	1163.6	1200
2025-05-01	1242	1256.5	1163.6	1200
2025-04-01	1242	1256.5	1163.6	1200
2025-03-01	1220.9	1235.9	1163.6	1200
2025-02-01	1186.9	1200	1162.4	1200
2025-01-01	1168	1200	1122.6	1200
2024-12-01	1168	1200	1122.6	1200
2024-11-01	1168	1200	1122.6	1200
2024-10-01	1168	1200	1122.6	1200
2024-09-01	1168	1200	1122.6	1200
2024-08-01	1168	1200	1122.6	1200
2024-07-01	1168	1200	1122.6	1200
2024-09-01	1168	1200	1122.6	1200
2024-05-01	1168	1200	1122.6	1200
2024-04-01	1224.4	1200	1240	1200
2024-03-01	1224.4	1200	1240	1200
2024-02-01	1224.4	1200	1240	1200
2024-01-01	1224.4	1200	1240	1200
2023-12-01	1224.4	1200	1240	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	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	2	1	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U11 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U11 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
4	CT Metro District East Schools Chess Individuals Trials 2025 (U11 Girls)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Cape Town Chess Junior League 2025 (U12)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	6	2	1	Yes	Analysis
2	Western Cape Schools Individual Championship 2025 (U11 Girls)	2025-05-17	2025-05-18	Standard	Cape Winelands (WCW)	6	6	2	Yes	Analysis
3	CT Metro Schools Individual Closed 2025 (U11 Girls)	2025-03-01	2025-03-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
4	CT Metro District East Schools Chess Individuals Trials 2025 (U11 Girls)	2025-02-01	2025-02-02	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	Cape Town Junior League Qualifier 2024 (U13 Open)	2024-04-06	2024-04-06	Rapid	Cape Town (WCT)	6	6	0	Yes	Analysis
6	CT Metro District East Top Schools Chess 2023 (U9 Mixed)	2023-07-29	2023-07-29	Rapid	Cape Town (WCT)	5	4	3	Yes	Analysis

#	Games	Start				End
1	3	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Hendricks, M (Maya)				Opponent Mashua, M (Maisha)
2	3	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-02-01	rnd 2	type Standard	result 1	date 2025-02-02	rnd 4	type Standard	result 1
		Opponent Huisamen, C (Cathalina)				Opponent Adolf, C (Chardonay)
3	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-18	rnd 6	type Standard	result 1	date 2025-05-31	rnd 6	type Standard	result 1
		Opponent Naidoo, D (Dana)				Opponent Manentsa, K (Kungawo)

#	Games	Start				End
1	3	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Hendricks, M (Maya)				Opponent Mashua, M (Maisha)
2	3	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-02-01	rnd 2	type Standard	result 1	date 2025-02-02	rnd 4	type Standard	result 1
		Opponent Huisamen, C (Cathalina)				Opponent Adolf, C (Chardonay)
3	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-18	rnd 6	type Standard	result 1	date 2025-05-31	rnd 6	type Standard	result 1
		Opponent Naidoo, D (Dana)				Opponent Manentsa, K (Kungawo)

#	Games	Start				End
1	2	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 4	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Patterson, E (Eli)				Opponent Esterhuzyen, A (Aj)
2	1	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 2	type Rapid	result 1	date 2023-07-29	rnd 2	type Rapid	result 1
		Opponent Burnett, T (Tomas)				Opponent Burnett, T (Tomas)

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Hendricks, M (Maya)				Opponent Mashua, M (Maisha)
2	3	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-02-01	rnd 2	type Standard	result 1	date 2025-02-02	rnd 4	type Standard	result 1
		Opponent Huisamen, C (Cathalina)				Opponent Adolf, C (Chardonay)
3	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-18	rnd 6	type Standard	result 1	date 2025-05-31	rnd 6	type Standard	result 1
		Opponent Naidoo, D (Dana)				Opponent Manentsa, K (Kungawo)

#	Games	Start				End
1	3	Tournament CT Metro Schools Individual Closed 2025				Tournament CT Metro Schools Individual Closed 2025
		date 2025-03-01	rnd 1	type Standard	result 1	date 2025-03-01	rnd 3	type Standard	result 1
		Opponent Hendricks, M (Maya)				Opponent Mashua, M (Maisha)
2	3	Tournament CT Metro District East Schools Chess Individuals Trials 2025				Tournament CT Metro District East Schools Chess Individuals Trials 2025
		date 2025-02-01	rnd 2	type Standard	result 1	date 2025-02-02	rnd 4	type Standard	result 1
		Opponent Huisamen, C (Cathalina)				Opponent Adolf, C (Chardonay)
3	2	Tournament Western Cape Schools Individual Championship 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-05-18	rnd 6	type Standard	result 1	date 2025-05-31	rnd 6	type Standard	result 1
		Opponent Naidoo, D (Dana)				Opponent Manentsa, K (Kungawo)

#	Games	Start				End
1	2	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 4	type Rapid	result 1	date 2023-07-29	rnd 5	type Rapid	result 1
		Opponent Patterson, E (Eli)				Opponent Esterhuzyen, A (Aj)
2	1	Tournament CT Metro District East Top Schools Chess 2023				Tournament CT Metro District East Top Schools Chess 2023
		date 2023-07-29	rnd 2	type Rapid	result 1	date 2023-07-29	rnd 2	type Rapid	result 1
		Opponent Burnett, T (Tomas)				Opponent Burnett, T (Tomas)

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	Adolf ,C (Chardonay)	2	2	425	2	2	425	0	0	0	0	0	0
1	Adolf ,C (Chardonay)	2	1204.3	1629.3	2	1203.1	1629.3	0	0	0	0	0	0
2	Alexander ,P (Phoebe)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Alexander ,P (Phoebe)	2	1397.6	972.6	2	1423.1	972.6	0	0	0	0	0	0
3	Walters ,N (Nicola)	1	0	-425	1	0	-425	0	0	0	0	0	0
3	Walters ,N (Nicola)	1	1468.8	1043.8	1	1470.7	1043.8	0	0	0	0	0	0
4	Tyokwana ,K (Khayone)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Tyokwana ,K (Khayone)	1	1243.6	818.6	1	1258.8	818.6	0	0	0	0	0	0
5	Huisamen ,C (Cathalina)	1	1	425	1	1	425	0	0	0	0	0	0
5	Huisamen ,C (Cathalina)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Javed ,Z (Zainab)	1	0	-425	1	0	-425	0	0	0	0	0	0
6	Javed ,Z (Zainab)	1	1411.2	986.2	1	1421.1	986.2	0	0	0	0	0	0
7	Tieties ,L (Lilanie)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Tieties ,L (Lilanie)	1	1354.6	929.6	1	1279.1	929.6	0	0	0	0	0	0
8	Manentsa ,K (Kungawo)	1	1	425	1	1	425	0	0	0	0	0	0
8	Manentsa ,K (Kungawo)	1	1165.6	1590.6	1	1120.4	1590.6	0	0	0	0	0	0
9	Zwartz ,Z (Zeke)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Zwartz ,Z (Zeke)	1	1423.7	998.7	1	1410.6	998.7	0	0	0	0	0	0
10	Kersouw ,A (Althea)	1	1	425	1	1	425	0	0	0	0	0	0
10	Kersouw ,A (Althea)	1	1206	1631	1	1211.6	1631	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Nehumba, A (Ayanna)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms