Chess South Africa Ratings Database

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Personal

Cona, S (Shaunwin)

Chess SA id

1100158526

FIDE id

Date of birth

2010-06-01 (U16)

Gender

Male

Region

Nelson Mandela Bay (ENM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

68.7

Junior GPX Points

1262.5

Item	Main	Standard	Rapid	Blitz
Rating	1436.5	1375.4	1357.4	1219.5
Raw rating	1436.5	1375.4	1357.4	1219.5
Weighted rating	1316.9	1298.4	1233.1	1209.6
Weighted performance	1410.6	1335.6	0	0
Floor	939.5	878	857.4	719.5
K-factor	32	36	36	36
Min/Max rating change allowed	118.4	129.2	132.5	161.3
Highest rating	1439.5 2025-09-01	1378 2025-06-01	1357.4 2025-08-01	1219.5 2025-04-01
Highest raw rating	1439.5 2025-09-01	1378 2025-06-01	1357.4 2025-08-01	1219.5 2025-04-01
Highest weighted rating	1316.9 2025-09-30	1298.4 2025-09-30	1208.9 2025-08-01	1207.2 2025-08-01
Highest weighted performance	1430.9 2025-08-01	1371.5 2024-09-01	1200 2024-02-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1436.5	1375.4	1357.4	1219.5
Analysis
Rating	1436.5	1375.4	1357.4	1219.5
Raw rating	1436.5	1375.4	1357.4	1219.5
Weighted rating	1316.9	1298.4	1233.1
Weighted performance	1410.6	1335.6	0
K-factor	32	36	36	36
Floor	939.5	878	857.4	719.5
Max/Min rating change allowed	118.4	129.2	132.5	161.3
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	1436.5	1375.4	1357.4	1219.5
New weighted rating	1329.8	1307.3	1244.4	1210.7
New weighted performance	1410.1	1335.1	0	0
Temp new rating	1436.5	1375.4	1357.4	1219.5
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1436.5	1375.4	1357.4	1219.5
New K-factor	32	36	36	36
New floor	939.5	878	857.4	719.5

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	75	58	14	3
	45	39	6	0
	6	6	0	0
	0	0	0	0
	0	0	0	0
History	126	103	20	3

Games since
	Main 120	Standard 97		Rapid 20		Blitz 3
Gender	Male
Age group	U16
Region	Nelson Mandela Bay (ENM)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	1805		232		77
Male	1516		200		67
U16	248		39		22
U16 Male	199		32		20
Standard
	RSA		Province		Region
Overall	2307		309		106
Male	1875		258		89
U16	364		52		28
U16 Male	281		42		24
Rapid
	RSA		Province		Region
Overall	704		43		11
Male	591		38		10
U16	110		7		4
U16 Male	84		5		3
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-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	75	38.5	51.33	11.3	1381.9	1393.2
Standard	58	26	44.83	-44	1395.7	1351.7
Rapid	14	10.5	75	212.5	1357.2	1569.7
Blitz	3	2	66.67	141.7	1230.5	1372.2
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	126	59.5	47.22	-23.6	1342.4	1318.7
Standard	103	45	43.69	-53.6	1345.3	1291.7
Rapid	20	12.5	62.5	106.2	1343.8	1450
Blitz	3	2	66.67	141.7	1230.5	1372.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	1436.5	1375.4	1357.4	1219.5
2025-09-01	1439.5	1362.1	1357.4	1219.5
2025-08-01	1430.9	1349	1357.4	1219.5
2025-07-01	1352.1	1349	1208.9	1219.5
2025-06-01	1375	1378	1208.9	1219.5
2025-05-01	1327.6	1316.4	1208.9	1219.5
2025-04-01	1294	1297	1193.1	1219.5
2025-03-01	1239.3	1236.8	1193.1	1200
2025-02-01	1272.1	1269.8	1192.7	1200
2025-01-01	1272.1	1269.8	1185.2	1200
2024-12-01	1319.6	1316.2	1185.2	1200
2024-11-01	1340.4	1340.7	1185.2	1200
2024-10-01	1340.4	1340.7	1185.2	1200
2024-09-01	1300.7	1300.9	1185.2	1200
2024-08-01	1185.9	1186.1	1185.2	1200
2024-07-01	1160.9	1155.1	1200	1200
2024-06-01	1160.9	1155.1	1200	1200
2024-08-01	1164.2	1158.3	1200	1200
2024-04-01	1180.3	1175.9	1200	1200
2024-03-01	1180.3	1175.9	1200	1200
2024-02-01	1206.6	1207.6	1200	1200
2024-01-01	1206.6	1207.6	1200	1200
2023-12-01	1206.6	1207.6	1200	1200
2023-11-01	1206.6	1207.6	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	EC Closed 2025 (U16 Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
2	UCC Championship 2025 (B)	2025-07-22	2025-08-19	Standard	Nelson Mandela Bay (ENM)	5	1	1	Yes	Analysis
3	Back to School Rapid 2025	2025-07-26	2025-07-26	Rapid	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
4	UCC Rapid July 2025	2025-07-08	2025-07-15	Rapid	Nelson Mandela Bay (ENM)	6	6	5	Yes	Analysis
5	NMBCU Closed 2025 (U16)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
6	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	5	2	Yes	Analysis
7	NMBCU Trial 4 2025 (U16)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
8	UCC Presidential Cup 2025 (A)	2025-04-08	2025-05-06	Standard	Nelson Mandela Bay (ENM)	5	3	1	Yes	Analysis
9	EC Open 2025 (U16-U20 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	6	3	Yes	Analysis
10	Karen Ashworth 2025 (B)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	2.5	Yes	Analysis
11	NMB 3rd Trials 2025 (U16)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
12	UCC Rapid Mar/Apr 2025	2025-03-18	2025-04-01	Rapid	Nelson Mandela Bay (ENM)	6	3	1.5	Yes	Analysis
13	UCC Blitz March 2025	2025-03-04	2025-03-11	Blitz	Nelson Mandela Bay (ENM)	6	3	2	Yes	Analysis
14	NMB 2nd Trials 2025 (U16)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
15	Uitenhage Chess Club Protea Cup 2025 (A)	2025-01-28	2025-02-25	Standard	Nelson Mandela Bay (ENM)	5	3	1	Yes	Analysis
16	NMBCH Trial 1 2025 (U16)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	EC Closed 2025 (U16 Open)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
2	UCC Championship 2025 (B)	2025-07-22	2025-08-19	Standard	Nelson Mandela Bay (ENM)	5	1	1	Yes	Analysis
3	Back to School Rapid 2025	2025-07-26	2025-07-26	Rapid	Nelson Mandela Bay (ENM)	5	5	4	Yes	Analysis
4	UCC Rapid July 2025	2025-07-08	2025-07-15	Rapid	Nelson Mandela Bay (ENM)	6	6	5	Yes	Analysis
5	NMBCU Closed 2025 (U16)	2025-06-13	2025-06-14	Standard	Nelson Mandela Bay (ENM)	6	5	1	Yes	Analysis
6	NMBCU Open 2025 (B)	2025-05-23	2025-05-24	Standard	Nelson Mandela Bay (ENM)	6	5	2	Yes	Analysis
7	NMBCU Trial 4 2025 (U16)	2025-05-09	2025-05-10	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
8	UCC Presidential Cup 2025 (A)	2025-04-08	2025-05-06	Standard	Nelson Mandela Bay (ENM)	5	3	1	Yes	Analysis
9	EC Open 2025 (U16-U20 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	6	3	Yes	Analysis
10	Karen Ashworth 2025 (B)	2025-04-26	2025-04-26	Standard	Nelson Mandela Bay (ENM)	5	5	2.5	Yes	Analysis
11	NMB 3rd Trials 2025 (U16)	2025-04-11	2025-04-12	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
12	UCC Rapid Mar/Apr 2025	2025-03-18	2025-04-01	Rapid	Nelson Mandela Bay (ENM)	6	3	1.5	Yes	Analysis
13	UCC Blitz March 2025	2025-03-04	2025-03-11	Blitz	Nelson Mandela Bay (ENM)	6	3	2	Yes	Analysis
14	NMB 2nd Trials 2025 (U16)	2025-03-07	2025-03-08	Standard	Nelson Mandela Bay (ENM)	6	6	3.5	Yes	Analysis
15	Uitenhage Chess Club Protea Cup 2025 (A)	2025-01-28	2025-02-25	Standard	Nelson Mandela Bay (ENM)	5	3	1	Yes	Analysis
16	NMBCH Trial 1 2025 (U16)	2025-02-14	2025-02-15	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
17	Mzansi Interprovincial Youth Chess Championships 2024 (U16 Open Candidates)	2024-12-16	2024-12-19	Standard	Capricorn (LCP)	7	6	2	Yes	Analysis
18	UCC Club Champs 2024 (B)	2024-10-08	2024-11-05	Standard	Nelson Mandela Bay (ENM)	5	1	0	Yes	Analysis
19	NMBCU Closed 2024 (U16)	2024-09-20	2024-09-21	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
20	UCC Royal Cup Classic July 2024 (A)	2024-07-09	2024-08-06	Standard	Nelson Mandela Bay (ENM)	5	3	3	Yes	Analysis
21	NMBCU Trials 4 2024 (U16)	2024-07-12	2024-07-13	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
22	Uitenhage Chess Club Rapid June 2024	2024-06-18	2024-07-02	Rapid	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
23	NMBCU Trial 3 2024 (U16)	2024-05-10	2024-05-11	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
24	NMBCU Trials 2 2024 (U16)	2024-04-12	2024-04-13	Standard	Nelson Mandela Bay (ENM)	6	5	2	Yes	Analysis
25	NMBCU Trials 1 2024 (U16)	2024-02-16	2024-02-16	Standard	Nelson Mandela Bay (ENM)	6	6	2	Yes	Analysis
26	NMBCU Trial 4 2023 (U14)	2023-07-28	2023-07-29	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis

#	Games	Start				End
1	6	Tournament UCC Rapid July 2025				Tournament Back to School Rapid 2025
		date 2025-07-08	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Tiry, A (Ahmed Husayn)				Opponent Barry, T (Tyler)
2	6	Tournament NMB 2nd Trials 2025				Tournament UCC Rapid Mar/Apr 2025
		date 2025-03-08	rnd 3	type Standard	result 0.5	date 2025-04-01	rnd 5	type Rapid	result 0.5
		Opponent Moller, S (Sarah)				Opponent Smile, O (Osakhe)
3	4	Tournament EC Open 2025				Tournament NMBCU Trial 4 2025
		date 2025-05-02	rnd 7	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 0.5
		Opponent Peter, A (Achuma)				Opponent Bothma, J (Jaculene)

#	Games	Start				End
1	6	Tournament NMB 2nd Trials 2025				Tournament NMB 3rd Trials 2025
		date 2025-03-08	rnd 3	type Standard	result 0.5	date 2025-04-12	rnd 2	type Standard	result 0.5
		Opponent Moller, S (Sarah)				Opponent Surmon, E (Ethan)
2	4	Tournament EC Open 2025				Tournament NMBCU Trial 4 2025
		date 2025-05-02	rnd 7	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 0.5
		Opponent Peter, A (Achuma)				Opponent Bothma, J (Jaculene)
3	3	Tournament NMBCU Open 2025				Tournament NMBCU Open 2025
		date 2025-05-23	rnd 1	type Standard	result 0.5	date 2025-05-24	rnd 4	type Standard	result 1
		Opponent Chipunza, J (Jaden)				Opponent Prinsloo, L (Liam)

#	Games	Start				End
1	6	Tournament UCC Rapid July 2025				Tournament Back to School Rapid 2025
		date 2025-07-08	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Tiry, A (Ahmed Husayn)				Opponent Barry, T (Tyler)
2	3	Tournament Uitenhage Chess Club Rapid June 2024				Tournament UCC Rapid Mar/Apr 2025
		date 2024-07-02	rnd 6	type Rapid	result 1	date 2025-04-01	rnd 5	type Rapid	result 0.5
		Opponent Smile, O (Osakhe)				Opponent Smile, O (Osakhe)
3	2	Tournament Back to School Rapid 2025				Tournament Back to School Rapid 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Prins, J (Joshua)				Opponent Prinsloo, S (Sean)

#	Games	Start				End
1	1	Tournament UCC Blitz March 2025				Tournament UCC Blitz March 2025
		date 2025-03-04	rnd 3	type Blitz	result 1	date 2025-03-04	rnd 3	type Blitz	result 1
		Opponent Adams, J (Jessica)				Opponent Adams, J (Jessica)
2	1	Tournament UCC Blitz March 2025				Tournament UCC Blitz March 2025
		date 2025-03-04	rnd 1	type Blitz	result 1	date 2025-03-04	rnd 1	type Blitz	result 1
		Opponent Leonidas, S (Shanique)				Opponent Leonidas, S (Shanique)

#	Games	Start				End
1	6	Tournament UCC Rapid July 2025				Tournament Back to School Rapid 2025
		date 2025-07-08	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Tiry, A (Ahmed Husayn)				Opponent Barry, T (Tyler)
2	3	Tournament Back to School Rapid 2025				Tournament UCC Championship 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-07-29	rnd 2	type Standard	result 1
		Opponent Prins, J (Joshua)				Opponent Bester, B (Brendan)
3	3	Tournament UCC Royal Cup Classic July 2024				Tournament UCC Royal Cup Classic July 2024
		date 2024-07-23	rnd 3	type Standard	result 1	date 2024-08-06	rnd 5	type Standard	result 1
		Opponent Mackay, M (Mikhail)				Opponent Barnard, C (Connor)

#	Games	Start				End
1	3	Tournament UCC Royal Cup Classic July 2024				Tournament UCC Royal Cup Classic July 2024
		date 2024-07-23	rnd 3	type Standard	result 1	date 2024-08-06	rnd 5	type Standard	result 1
		Opponent Mackay, M (Mikhail)				Opponent Barnard, C (Connor)
2	2	Tournament Karen Ashworth 2025				Tournament Karen Ashworth 2025
		date 2025-04-26	rnd 2	type Standard	result 1	date 2025-04-26	rnd 3	type Standard	result 1
		Opponent Mouton, W (Wyatt)				Opponent Adams, C (Ciara)
3	2	Tournament NMB 3rd Trials 2025				Tournament NMB 3rd Trials 2025
		date 2025-04-12	rnd 4	type Standard	result 1	date 2025-04-12	rnd 5	type Standard	result 1
		Opponent Sonti, K (Kamvalethu)				Opponent Norris, N (Nathan)

#	Games	Start				End
1	6	Tournament UCC Rapid July 2025				Tournament Back to School Rapid 2025
		date 2025-07-08	rnd 3	type Rapid	result 1	date 2025-07-26	rnd 2	type Rapid	result 1
		Opponent Tiry, A (Ahmed Husayn)				Opponent Barry, T (Tyler)
2	2	Tournament Back to School Rapid 2025				Tournament Back to School Rapid 2025
		date 2025-07-26	rnd 4	type Rapid	result 1	date 2025-07-26	rnd 5	type Rapid	result 1
		Opponent Prins, J (Joshua)				Opponent Prinsloo, S (Sean)
3	2	Tournament Uitenhage Chess Club Rapid June 2024				Tournament UCC Rapid Mar/Apr 2025
		date 2024-07-02	rnd 6	type Rapid	result 1	date 2025-03-25	rnd 4	type Rapid	result 1
		Opponent Smile, O (Osakhe)				Opponent Meyer, J (Joseb)

#	Games	Start				End
1	1	Tournament UCC Blitz March 2025				Tournament UCC Blitz March 2025
		date 2025-03-04	rnd 3	type Blitz	result 1	date 2025-03-04	rnd 3	type Blitz	result 1
		Opponent Adams, J (Jessica)				Opponent Adams, J (Jessica)
2	1	Tournament UCC Blitz March 2025				Tournament UCC Blitz March 2025
		date 2025-03-04	rnd 1	type Blitz	result 1	date 2025-03-04	rnd 1	type Blitz	result 1
		Opponent Leonidas, S (Shanique)				Opponent Leonidas, S (Shanique)

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	Ackerdien ,S (Saud)	5	1.5	-170	5	1.5	-170	0	0	0	0	0	0
1	Ackerdien ,S (Saud)	5	1393.3	1223.3	5	1382.4	1223.3	0	0	0	0	0	0
2	Moller ,S (Sarah)	4	1	-212.5	4	1	-212.5	0	0	0	0	0	0
2	Moller ,S (Sarah)	4	1499.4	1286.9	4	1479.3	1286.9	0	0	0	0	0	0
3	Coetzee ,S (Samual)	3	0.5	-283.3	3	0.5	-283.3	0	0	0	0	0	0
3	Coetzee ,S (Samual)	3	1569.6	1286.2	3	1559.9	1286.2	0	0	0	0	0	0
4	Sihewula ,A (Achuma)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
4	Sihewula ,A (Achuma)	3	1245.3	1245.3	3	1258	1245.3	0	0	0	0	0	0
5	Blandy ,L (Levi)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
5	Blandy ,L (Levi)	3	1411.7	1270	3	1415	1270	0	0	0	0	0	0
6	Bothma ,J (Jaculene)	3	1.5	0	3	1.5	0	0	0	0	0	0	0
6	Bothma ,J (Jaculene)	3	1385.9	1385.9	3	1386	1385.9	0	0	0	0	0	0
7	Norris ,N (Nathan)	3	3	425	3	3	425	0	0	0	0	0	0
7	Norris ,N (Nathan)	3	1346.3	1771.3	3	1342.9	1771.3	0	0	0	0	0	0
8	Sonti ,K (Kamvalethu)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
8	Sonti ,K (Kamvalethu)	3	1306.2	1589.6	3	1301.3	1589.6	0	0	0	0	0	0
9	Prins ,J (Joshua)	3	1	-141.7	2	0	-425	1	1	425	0	0	0
9	Prins ,J (Joshua)	3	1307.1	1165.5	2	1250.3	882.1	1	1283.7	1732.1	0	0	0
10	Ranjith ,A (Aishwarya)	2	1	0	2	1	0	0	0	0	0	0	0
10	Ranjith ,A (Aishwarya)	2	1487.3	1487.3	2	1475.6	1487.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Cona, S (Shaunwin)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms