Chess South Africa Ratings Database

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Personal

Sidlayi, O (Onako)

Chess SA id

2110302006

FIDE id

Date of birth

2011-12-22 (U16)

Gender

Female

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-20

Personal details last changed

1900-01-01

Junior GPX Games

61.4

Junior GPX Points

1310.8

Item	Main	Standard	Rapid	Blitz
Rating	1378.7	1381.1	1239.3	1200
Raw rating	1378.7	1381.1	1239.3	1200
Weighted rating	1294.5	1315.7	1201.1	1200
Weighted performance	1368.5	1370	0	0
Floor	878.7	890.3	739.3	700
K-factor	36	36	36	36
Min/Max rating change allowed	128.5	128.1	156.8	165.8
Highest rating	1378.7 2025-09-30	1402.1 2024-08-01	1239.3 2025-03-01	1200 2024-05-01
Highest raw rating	1378.7 2025-09-30	1390.3 2025-06-01	1239.3 2025-03-01	1200 2024-05-01
Highest weighted rating	1294.5 2025-09-30	1390.3 2024-10-01	1239.3 2024-04-01	1200 2024-05-01
Highest weighted performance	1375 2025-08-01	1402.1 2024-08-01	1200 2024-12-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1378.7	1381.1	1239.3	1200
Analysis
Rating	1378.7	1381.1	1239.3	1200
Raw rating	1378.7	1381.1	1239.3	1200
Weighted rating	1294.5	1315.7	1201.1
Weighted performance	1368.5	1370	0
K-factor	36	36	36	36
Floor	878.7	890.3	739.3	700
Max/Min rating change allowed	128.5	128.1	156.8	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	1378.7	1381.1	1239.3	1200
New weighted rating	1303.9	1323.8	1204.9	1200
New weighted performance	1368	1369.5	0	0
Temp new rating	1378.7	1381.1	1239.3	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1378.7	1381.1	1239.3	1200
New K-factor	36	36	36	36
New floor	878.7	890.3	739.3	700

Item	Main	Standard	Rapid
	0	0	0
	67	60	7
	26	14	12
	0	0	0
	0	0	0
	0	0	0
History	93	74	19

Games since
	Main 93	Standard 74		Rapid 19		Blitz 0
Gender	Female
Age group	U16
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	2386		317		103
Female	420		48		18
U16	370		53		11
U16 Female	87		10		5
Standard
	RSA		Province		Region
Overall	2254		302		100
Female	398		47		19
U16	352		51		11
U16 Female	81		10		5
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U16	-1		-1		-1
U16 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	67	39.5	58.96	76.1	1313.5	1389.6
Standard	60	34.5	57.5	63.8	1322.4	1386.1
Rapid	7	5	71.43	182.1	1237.3	1419.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	93	54	58.06	68.5	1284.4	1352.9
Standard	74	44.5	60.14	86.1	1298.6	1384.8
Rapid	19	9.5	50	0	1228.7	1228.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1378.7	1381.1	1239.3	1200
2025-09-01	1356.7	1356.7	1239.3	1200
2025-08-01	1375	1380.9	1239.3	1200
2025-07-01	1371.6	1390.3	1239.3	1200
2025-06-01	1371.6	1390.3	1239.3	1200
2025-05-01	1320.6	1343.6	1239.3	1200
2025-04-01	1275.5	1292.7	1239.3	1200
2025-03-01	1275.2	1299.8	1239.3	1200
2025-02-01	1258.9	1299.8	1163.7	1200
2025-01-01	1258.9	1299.8	1142.4	1200
2024-12-01	1258.9	1299.8	1142.4	1200
2024-11-01	1258.9	1299.8	1142.4	1200
2024-10-01	1258.9	1299.8	1142.4	1200
2024-09-01	1258.9	1299.8	1142.4	1200
2024-08-01	1189.3	1220.6	1142.4	1200
2024-07-01	1189.3	1220.6	1142.4	1200
2024-06-01	1189.3	1220.6	1142.4	1200
2024-08-01	1223.8	1236.4	1164.8	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200
2023-11-01	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	Buffalo City Chess Clubs League 2025 (B)	2025-09-20	2025-09-20	Standard	Buffalo City (EBC)	6	5	2	Yes	Analysis
2	EC Closed 2025 (U16 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
3	Buffalo City Chess Junior Closed 2025 (U16 Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
4	BC Schools Chess Festival 2025 (U15 Girls)	2025-07-26	2025-07-26	Standard	Buffalo City (EBC)	5	3	1	Yes	Analysis
5	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Girls)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3.5	Yes	Analysis
6	Eastern Cape Inter-Regional Team Chess Championship 2025 (U16)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	3	1.5	Yes	Analysis
7	Gompo Chess Open 2025 (B)	2025-06-21	2025-06-21	Standard	Buffalo City (EBC)	5	4	2.5	Yes	Analysis
8	Hector Peterson Fundraiser Rapid May 2025 (B)	2025-05-17	2025-05-17	Standard	Buffalo City (EBC)	7	7	5	Yes	Analysis
9	2025 Buffalo City Chess Trials 3 (U16)	2025-05-10	2025-05-10	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
10	EC Open 2025 (U16-U20 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	6	2.5	Yes	Analysis
11	2025 Buffalo City Chess Trials 2 (U10)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	0	0	No	Analysis
12	2025 Buffalo City Chess Trials 1 (U16)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
13	WSC 1st Chess Extravaganza 2025 (U15)	2025-03-01	2025-03-01	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
14	Rapid Feb 2nd Leg 2025 (U16-Adult)	2025-02-22	2025-02-22	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Buffalo City Chess Clubs League 2025 (B)	2025-09-20	2025-09-20	Standard	Buffalo City (EBC)	6	5	2	Yes	Analysis
2	EC Closed 2025 (U16 Girls)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
3	Buffalo City Chess Junior Closed 2025 (U16 Girls)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
4	BC Schools Chess Festival 2025 (U15 Girls)	2025-07-26	2025-07-26	Standard	Buffalo City (EBC)	5	3	1	Yes	Analysis
5	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U16 Girls)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	6	3.5	Yes	Analysis
6	Eastern Cape Inter-Regional Team Chess Championship 2025 (U16)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	3	1.5	Yes	Analysis
7	Gompo Chess Open 2025 (B)	2025-06-21	2025-06-21	Standard	Buffalo City (EBC)	5	4	2.5	Yes	Analysis
8	Hector Peterson Fundraiser Rapid May 2025 (B)	2025-05-17	2025-05-17	Standard	Buffalo City (EBC)	7	7	5	Yes	Analysis
9	2025 Buffalo City Chess Trials 3 (U16)	2025-05-10	2025-05-10	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
10	EC Open 2025 (U16-U20 Girls)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	6	2.5	Yes	Analysis
11	2025 Buffalo City Chess Trials 2 (U10)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	0	0	No	Analysis
12	2025 Buffalo City Chess Trials 1 (U16)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
13	WSC 1st Chess Extravaganza 2025 (U15)	2025-03-01	2025-03-01	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
14	Rapid Feb 2nd Leg 2025 (U16-Adult)	2025-02-22	2025-02-22	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
15	Buffalo City District Schools Chess All Ages Championships 2024 (U13 Girls)	2024-08-10	2024-08-10	Standard	Buffalo City (EBC)	5	5	5	Yes	Analysis
16	Gompo Chess Club Rapid 2024 (B)	2024-05-01	2024-05-01	Rapid	Buffalo City (EBC)	6	6	2.5	Yes	Analysis
17	3rd BC Trials 2024 (U14A)	2024-05-11	2024-05-11	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
18	Bhongweni Chess Club Open 2024 (U14)	2024-04-27	2024-04-27	Rapid	Buffalo City (EBC)	6	6	2	Yes	Analysis
19	UFH Open 2024 (D)	2024-04-13	2024-04-13	Standard	Amathole (EAL)	5	4	3	Yes	Analysis

#	Games	Start				End
1	8	Tournament 3rd BC Trials 2024				Tournament Rapid Feb 2nd Leg 2025
		date 2024-05-11	rnd 5	type Standard	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Thulo, K (Kananelo)				Opponent Manuel, I (Inile)
2	5	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-09-06	rnd 3	type Standard	result 1
		Opponent Zonela, A (Ayabulela)				Opponent Clarke, G (Gerda)
3	5	Tournament Rapid Feb 2nd Leg 2025				Tournament WSC 1st Chess Extravaganza 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-03-01	rnd 2	type Standard	result 0.5
		Opponent Zumani, L (Liyanda)				Opponent Mjanyana, K (Kazimla)

#	Games	Start				End
1	8	Tournament 3rd BC Trials 2024				Tournament WSC 1st Chess Extravaganza 2025
		date 2024-05-11	rnd 5	type Standard	result 1	date 2025-03-01	rnd 2	type Standard	result 0.5
		Opponent Thulo, K (Kananelo)				Opponent Mjanyana, K (Kazimla)
2	5	Tournament Buffalo City Chess Junior Closed 2025				Tournament EC Closed 2025
		date 2025-08-16	rnd 4	type Standard	result 1	date 2025-09-06	rnd 3	type Standard	result 1
		Opponent Zonela, A (Ayabulela)				Opponent Clarke, G (Gerda)
3	4	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 3	type Standard	result 1	date 2025-07-11	rnd 2	type Standard	result 0.5
		Opponent Gie, M (Mckenzie)				Opponent Maziena, L (Lavanya)

#	Games	Start				End
1	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 7	type Rapid	result 1
		Opponent Zumani, L (Liyanda)				Opponent Akohlulwa, L (Lumkqwama)
2	3	Tournament Gompo Chess Club Rapid 2024				Tournament Rapid Feb 2nd Leg 2025
		date 2024-05-01	rnd 6	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Peter, K (Kungawe)				Opponent Manuel, I (Inile)
3	2	Tournament Bhongweni Chess Club Open 2024				Tournament Bhongweni Chess Club Open 2024
		date 2024-04-27	rnd 1	type Rapid	result 1	date 2024-04-27	rnd 2	type Rapid	result 1
		Opponent Nkuzo, O (Onako)				Opponent Peter, A (Achuma)

No games found.

#	Games	Start				End

#	Games	Start				End
1	8	Tournament 3rd BC Trials 2024				Tournament Rapid Feb 2nd Leg 2025
		date 2024-05-11	rnd 5	type Standard	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Thulo, K (Kananelo)				Opponent Manuel, I (Inile)
2	4	Tournament Hector Peterson Fundraiser Rapid May 2025				Tournament Gompo Chess Open 2025
		date 2025-05-17	rnd 5	type Standard	result 1	date 2025-06-21	rnd 2	type Standard	result 1
		Opponent Qola, I (Iyelethu)				Opponent Zele, O (Olothando)
3	4	Tournament 2025 Buffalo City Chess Trials 3				Tournament Hector Peterson Fundraiser Rapid May 2025
		date 2025-05-10	rnd 4	type Standard	result 1	date 2025-05-17	rnd 2	type Standard	result 1
		Opponent Peter, A (Achuma)				Opponent SINGANZI, M (MELOKUHLE)

#	Games	Start				End
1	7	Tournament 3rd BC Trials 2024				Tournament WSC 1st Chess Extravaganza 2025
		date 2024-05-11	rnd 5	type Standard	result 1	date 2025-03-01	rnd 1	type Standard	result 1
		Opponent Thulo, K (Kananelo)				Opponent Menzi, L (Lihle)
2	4	Tournament Hector Peterson Fundraiser Rapid May 2025				Tournament Gompo Chess Open 2025
		date 2025-05-17	rnd 5	type Standard	result 1	date 2025-06-21	rnd 2	type Standard	result 1
		Opponent Qola, I (Iyelethu)				Opponent Zele, O (Olothando)
3	4	Tournament 2025 Buffalo City Chess Trials 3				Tournament Hector Peterson Fundraiser Rapid May 2025
		date 2025-05-10	rnd 4	type Standard	result 1	date 2025-05-17	rnd 2	type Standard	result 1
		Opponent Peter, A (Achuma)				Opponent SINGANZI, M (MELOKUHLE)

#	Games	Start				End
1	3	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-22	rnd 5	type Rapid	result 1	date 2025-02-22	rnd 7	type Rapid	result 1
		Opponent Zumani, L (Liyanda)				Opponent Akohlulwa, L (Lumkqwama)
2	3	Tournament Gompo Chess Club Rapid 2024				Tournament Rapid Feb 2nd Leg 2025
		date 2024-05-01	rnd 6	type Rapid	result 1	date 2025-02-22	rnd 2	type Rapid	result 1
		Opponent Peter, K (Kungawe)				Opponent Manuel, I (Inile)
3	2	Tournament Bhongweni Chess Club Open 2024				Tournament Bhongweni Chess Club Open 2024
		date 2024-04-27	rnd 1	type Rapid	result 1	date 2024-04-27	rnd 2	type Rapid	result 1
		Opponent Nkuzo, O (Onako)				Opponent Peter, A (Achuma)

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	August ,S (Siyolise)	5	0	-425	5	0	-425	0	0	0	0	0	0
1	August ,S (Siyolise)	5	1461.6	1036.6	5	1451.3	1036.6	0	0	0	0	0	0
2	Thulo ,K (Kananelo)	4	4	425	4	4	425	0	0	0	0	0	0
2	Thulo ,K (Kananelo)	4	1094.7	1519.7	4	1105.4	1519.7	0	0	0	0	0	0
3	Peter ,A (Achuma)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
3	Peter ,A (Achuma)	3	1234.2	1517.5	2	1265.3	1446.7	1	1200	1659.2	0	0	0
4	Beecum ,V (Viha)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Beecum ,V (Viha)	2	1588.1	1163.1	2	1591.6	1163.1	0	0	0	0	0	0
5	Gie ,M (Mckenzie)	2	1	0	2	1	0	0	0	0	0	0	0
5	Gie ,M (Mckenzie)	2	1308.2	1308.2	2	1305.5	1308.2	0	0	0	0	0	0
6	Potwana ,Y (Yamkela)	2	2	425	2	2	425	0	0	0	0	0	0
6	Potwana ,Y (Yamkela)	2	1220	1645	2	1240.4	1645	0	0	0	0	0	0
7	Maziena ,L (Lavanya)	2	1	0	2	1	0	0	0	0	0	0	0
7	Maziena ,L (Lavanya)	2	1567.9	1567.9	2	1558.4	1567.9	0	0	0	0	0	0
8	Clarke ,G (Gerda)	2	2	425	2	2	425	0	0	0	0	0	0
8	Clarke ,G (Gerda)	2	1296.4	1721.4	2	1299.9	1721.4	0	0	0	0	0	0
9	Mafukidze ,A (Arnold)	2	0	-425	1	0	-425	1	0	-425	0	0	0
9	Mafukidze ,A (Arnold)	2	1305.1	880.1	1	1299.8	880.1	1	1174	880.1	0	0	0
10	Manuel ,I (Inile)	2	1	0	1	0	-425	1	1	425	0	0	0
10	Manuel ,I (Inile)	2	1221.6	1221.6	1	1247.5	796.6	1	1200	1646.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Sidlayi, O (Onako)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms