Chess South Africa Ratings Database

PLAYER PAGE

Personal

Naidoo, R (Rayna)

Chess SA id

201026583

FIDE id

Date of birth

2001-08-23 (Adult)

Gender

Female

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2019-07-22

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1373.5	1368.7	1220.8	1189.1
Raw rating	1373.5	1368.7	1220.8	1189.1
Weighted rating	1373.5	1368.7	1220.8	1189.1
Weighted performance	187	179.6	0	0
Floor	873.5	868.7	720.8	720.8
K-factor	36	36	36	36
Min/Max rating change allowed	129.5	130.4	161	168.4
Highest rating	1397 2018-02-01	1396.7 2018-02-01	1220.8 2019-08-01	1220.8 2018-05-01
Highest raw rating	1373.5 2024-02-01	1368.7 2024-02-01	1220.8 2024-02-01	1220.8 2018-02-01
Highest weighted rating	1373.5 2025-02-01	1368.7 2025-02-01	1220.8 2019-08-01	1220.8 2018-05-01
Highest weighted performance	1397 2018-02-01	1396.7 2018-02-01	1200 2024-02-01	1200 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1373.5	1368.7	1220.8	1189.1
Analysis
Rating	1373.5	1368.7	1220.8	1189.1
Raw rating	1373.5	1368.7	1220.8	1189.1
Weighted rating	1373.5	1368.7	1220.8
Weighted performance	187	179.6	0
K-factor	36	36	36	36
Floor	873.5	868.7	720.8	720.8
Max/Min rating change allowed	129.5	130.4	161	168.4
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	1373.5	1368.7	1220.8	1189.1
New weighted rating	1373.5	1368.7	1220.8	1189.1
New weighted performance	179	171.8	0	0
Temp new rating	1373.5	1368.7	1220.8	1189.1
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1373.5	1368.7	1220.8	1189.1
New K-factor	36	36	36	36
New floor	873.5	868.7	720.8	720.8

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	686	653	26	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Female
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
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	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	98	51.5	52.55	21.7	1302.7	1324.4
Standard	91	47.5	52.2	18.7	1296.2	1314.9
Rapid	0	0	0	0	0	0
Blitz	7	4	57.14	60.7	1387.4	1448.1

Date	Main	Standard	Rapid	Blitz
2025-11-01	1373.5	1368.7	1220.8	1189.1
2025-09-30	1373.5	1368.7	1220.8	1189.1
2025-09-01	1373.5	1368.7	1220.8	1189.1
2025-08-01	1373.5	1368.7	1220.8	1189.1
2025-07-01	1373.5	1368.7	1220.8	1189.1
2025-06-01	1373.5	1368.7	1220.8	1189.1
2025-05-01	1373.5	1368.7	1220.8	1189.1
2025-04-01	1373.5	1368.7	1220.8	1189.1
2025-03-01	1373.5	1368.7	1220.8	1189.1
2025-02-01	1373.5	1368.7	1220.8	1189.1
2025-01-01	1373.5	1368.7	1220.8	1189.1
2024-12-01	1373.5	1368.7	1220.8	1189.1
2024-11-01	1373.5	1368.7	1220.8	1189.1
2024-10-01	1373.5	1368.7	1220.8	1189.1
2024-09-01	1373.5	1368.7	1220.8	1189.1
2024-08-01	1373.5	1368.7	1220.8	1189.1
2024-07-01	1373.5	1368.7	1220.8	1189.1
2024-09-01	1373.5	1368.7	1220.8	1189.1
2024-05-01	1373.5	1368.7	1220.8	1189.1
2024-04-01	1373.5	1368.7	1220.8	1189.1
2024-03-01	1373.5	1368.7	1220.8	1189.1
2024-02-01	1373.5	1368.7	1220.8	1189.1
2024-01-01	1373.5	1368.7	1220.8	1189.1
2023-12-01	1373.5	1368.7	1220.8	1189.1

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	JHB North High School League 2019	2019-02-19	2019-07-22	Standard	Chess Excellence (CEX)	5	2	2	Yes	Analysis
2	2018 Inter Region Chess Championships	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	6	1.5	Yes	Analysis
3	South African Junior Blitz 2018 (U18)	2018-12-19	2018-12-19	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
4	South African Junior Team Championships 2018 (U18A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
5	World Youth Chess Championships 2018	2018-10-20	2018-10-30	Standard	Greece (GRE)	11	10	3	Yes	Analysis
6	Inter Region GE vs JHB Metro 2018 (U18+U20)	2018-10-06	2018-10-06	Standard	Ekurhuleni (GE)	5	5	2	Yes	Analysis
7	JNW Club - Helpmekaar Open 2018 (B)	2018-09-15	2018-09-15	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
8	JNW Club - Maragon Open 2018 (B)	2018-08-04	2018-08-04	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
9	JHB Metro Junior Closed 2018 (Open)	2018-07-28	2018-07-29	Standard	Johannesburg Metro (GJM)	6	6	3.5	Yes	Analysis
10	2018 Chris Greyling Open (B)	2018-04-21	2018-04-21	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
11	2018 Capablanca Swiss (B)	2018-04-27	2018-04-29	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
12	2018 South African Junior Closed Chess Championships (U18 Girls)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	7	Yes	Analysis
13	JNW Club - Trinityhouse Randpark Ridge Open 2018 (B)	2018-03-24	2018-03-24	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
14	2018 Volkskool Open (A)	2018-02-17	2018-02-17	Standard	Sedibeng (GSV)	5	5	2	Yes	Analysis
15	JNW Club - Bryanston Open 2018 (B)	2018-01-26	2018-01-27	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
16	South African Junior Team Championships 2017 (U18A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	6	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament 2018 South African Junior Closed Chess Championships				Tournament 2018 Chris Greyling Open
		date 2018-04-05	rnd 8	type Standard	result 0.5	date 2018-04-21	rnd 2	type Standard	result 0.5
		Opponent Wolmarans, R (Riekie)				Opponent Van Heerden, L (Lara)
2	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 6	type Blitz	result 1
		Opponent Dinham, M (Megan)				Opponent Pule, L (Lesedi)
3	4	Tournament South African Junior Team Championships 2018				Tournament South African Junior Blitz 2018
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-19	rnd 1	type Blitz	result 0.5
		Opponent Swart, D (Divan)				Opponent Bolani, S (Sakhile)

#	Games	Start				End
1	6	Tournament 2018 South African Junior Closed Chess Championships				Tournament 2018 Chris Greyling Open
		date 2018-04-05	rnd 8	type Standard	result 0.5	date 2018-04-21	rnd 2	type Standard	result 0.5
		Opponent Wolmarans, R (Riekie)				Opponent Van Heerden, L (Lara)
2	4	Tournament JNW Club - Bryanston Open 2018				Tournament JNW Club - Bryanston Open 2018
		date 2018-01-26	rnd 2	type Standard	result 1	date 2018-01-27	rnd 5	type Standard	result 1
		Opponent Jurisich, A (Ashley)				Opponent Gardiner, N (Noa)
3	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Swart, D (Divan)				Opponent Bain, J (Jonathan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	4	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 6	type Blitz	result 1
		Opponent Dinham, M (Megan)				Opponent Pule, L (Lesedi)
2	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 1	type Blitz	result 0.5	date 2018-12-19	rnd 1	type Blitz	result 0.5
		Opponent Bolani, S (Sakhile)				Opponent Bolani, S (Sakhile)

#	Games	Start				End
1	4	Tournament JNW Club - Bryanston Open 2018				Tournament JNW Club - Bryanston Open 2018
		date 2018-01-26	rnd 2	type Standard	result 1	date 2018-01-27	rnd 5	type Standard	result 1
		Opponent Jurisich, A (Ashley)				Opponent Gardiner, N (Noa)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Swart, D (Divan)				Opponent Bain, J (Jonathan)
3	3	Tournament World Youth Chess Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-10-30	rnd 11	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Horn Caro				Opponent Kippen, R (Ryan)

#	Games	Start				End
1	4	Tournament JNW Club - Bryanston Open 2018				Tournament JNW Club - Bryanston Open 2018
		date 2018-01-26	rnd 2	type Standard	result 1	date 2018-01-27	rnd 5	type Standard	result 1
		Opponent Jurisich, A (Ashley)				Opponent Gardiner, N (Noa)
2	3	Tournament South African Junior Team Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-12-17	rnd 4	type Standard	result 1	date 2018-12-19	rnd 6	type Standard	result 1
		Opponent Swart, D (Divan)				Opponent Bain, J (Jonathan)
3	3	Tournament World Youth Chess Championships 2018				Tournament South African Junior Team Championships 2018
		date 2018-10-30	rnd 11	type Standard	result 1	date 2018-12-16	rnd 2	type Standard	result 1
		Opponent Horn Caro				Opponent Kippen, R (Ryan)

No games found.

#	Games	Start				End

#	Games	Start				End
1	2	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 5	type Blitz	result 1	date 2018-12-19	rnd 6	type Blitz	result 1
		Opponent Van Stryp, O (Ockert)				Opponent Pule, L (Lesedi)
2	1	Tournament South African Junior Blitz 2018				Tournament South African Junior Blitz 2018
		date 2018-12-19	rnd 3	type Blitz	result 1	date 2018-12-19	rnd 3	type Blitz	result 1
		Opponent Dinham, M (Megan)				Opponent Dinham, M (Megan)

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	Nieuwoudt ,H (Hanno)	2	1	0	2	1	0	0	0	0	0	0	0
1	Nieuwoudt ,H (Hanno)	2	1349.1	1349.1	2	1350.3	1349.1	0	0	0	0	0	0
2	Van Heerden ,L (Lara)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
2	Van Heerden ,L (Lara)	2	1283.8	1071.3	2	1285.3	1071.3	0	0	0	0	0	0
3	Wolmarans ,R (Riekie)	2	1	0	2	1	0	0	0	0	0	0	0
3	Wolmarans ,R (Riekie)	2	1447.4	1447.4	2	1445.4	1447.4	0	0	0	0	0	0
4	Moche ,J (Johannes)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Moche ,J (Johannes)	2	1694.8	1269.8	2	1687.2	1269.8	0	0	0	0	0	0
5	Joule ,EJ (Ethan)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Joule ,EJ (Ethan)	2	1553.1	1128.1	2	1551.7	1128.1	0	0	0	0	0	0
6	Dinham ,M (Megan)	2	1.5	212.5	1	0.5	0	0	0	0	1	1	425
6	Dinham ,M (Megan)	2	1342.2	1554.7	1	1346.5	1342.2	0	0	0	1	1281.7	1767.2
7	Chueu ,C (Calvin)	1	0	-425	1	0	-425	0	0	0	0	0	0
7	Chueu ,C (Calvin)	1	1533.2	1108.2	1	1533.2	1108.2	0	0	0	0	0	0
8	Strong ,D (Davida)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Strong ,D (Davida)	1	1142.6	717.6	1	1137.2	717.6	0	0	0	0	0	0
9	Landitho ,M (Mzwandile)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Landitho ,M (Mzwandile)	1	1460.1	1035.1	1	1458.1	1035.1	0	0	0	0	0	0
10	Kettledas ,DT (Danielle Thandi)	1	1	425	1	1	425	0	0	0	0	0	0
10	Kettledas ,DT (Danielle Thandi)	1	1121.1	1546.1	1	1107.5	1546.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Naidoo, R (Rayna)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms