Chess South Africa Ratings Database

PLAYER PAGE

Personal

Sonamzi, O (Ovayo)

Chess SA id

1120148302

FIDE id

Date of birth

2012-12-29 (U14)

Gender

Male

Region

Cape Town (WCT)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-31

Personal details last changed

2025-02-11

Junior GPX Games

Junior GPX Points

1458.5

Item	Main	Standard	Rapid	Blitz
Rating	1401.4	1376.6	1279.7	1200
Raw rating	1401.4	1376.6	1279.1	1200
Weighted rating	1341.6	1323.8	1279.7	1200
Weighted performance	1312	1287.9	1007.4	0
Floor	939	920	794.9	700
K-factor	32	32	36	36
Min/Max rating change allowed	124.4	128.9	148.1	165.8
Highest rating	1439 2025-04-01	1420 2025-04-01	1303.6 2023-12-01	1200 2018-10-01
Highest raw rating	1439 2025-04-01	1420 2025-04-01	1294.9 2024-03-01	1200 2024-03-01
Highest weighted rating	1325.7 2025-08-01	1309.8 2025-08-01	1279.1 2025-08-01	1200 2018-10-01
Highest weighted performance	1439 2025-04-01	1420 2023-02-01	1303.6 2023-12-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	-0.1	0
New rating	1401.4	1376.6	1279.6	1200
Analysis
Rating	1401.4	1376.6	1279.7	1200
Raw rating	1401.4	1376.6	1279.1	1200
Weighted rating	1341.6	1323.8	1279.7
Weighted performance	1312	1287.9	1007.4
K-factor	32	32	36	36
Floor	939	920	794.9	700
Max/Min rating change allowed	124.4	128.9	148.1	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	1401.4	1376.6	1279.1	1200
New weighted rating	1348.7	1330.1	1279.6	1200
New weighted performance	1311.5	1287.4	1006.9	0
Temp new rating	1401.4	1376.6	1279.6	1200
Temp new rating +/-	0	0	-0.1	0
Final new rating +/-	0	0	-0.1	0
New rating	1401.4	1376.6	1279.6	1200
New K-factor	32	32	36	36
New floor	939	920	794.9	700

Item	Main	Standard	Rapid
	0	0	0
	22	22	0
	17	11	6
	32	4	28
	6	0	6
	0	0	0
History	77	37	40

Games since
	Main 45	Standard 33		Rapid 12		Blitz 0
Gender	Male
Age group	U14
Region	Cape Town (WCT)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	2150		659		292
Male	1769		514		234
U14	340		110		48
U14 Male	254		73		31
Standard
	RSA		Province		Region
Overall	2298		632		280
Male	1868		478		217
U14	390		116		50
U14 Male	289		76		31
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	22	12.5	56.82	58	1381.1	1439.1
Standard	22	12.5	56.82	58	1381.1	1439.1
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	77	42	54.55	38.6	1289.7	1328.3
Standard	37	21	56.76	57.4	1337.7	1395.1
Rapid	40	21	52.5	21.2	1245.3	1266.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1401.4	1376.6	1279.1	1200
2025-09-01	1401.4	1376.6	1279.1	1200
2025-08-01	1401.4	1376.6	1279.1	1200
2025-07-01	1401.4	1376.6	1278.5	1200
2025-06-01	1439	1420	1277.7	1200
2025-05-01	1439	1420	1277.3	1200
2025-04-01	1439	1420	1277.3	1200
2025-03-01	1276.5	1266.4	1277.3	1200
2025-02-01	1263.2	1253.7	1277.3	1200
2025-01-01	1261.2	1246.8	1277.3	1200
2024-12-01	1261.2	1246.8	1277.3	1200
2024-11-01	1261.2	1246.8	1277.3	1200
2024-10-01	1261.2	1246.8	1277.3	1200
2024-09-01	1261.2	1246.8	1277.3	1200
2024-08-01	1261.2	1246.8	1277.3	1200
2024-07-01	1261.2	1246.8	1277.3	1200
2024-06-01	1304.4	1291.8	1294.9	1200
2024-08-01	1304.4	1291.8	1294.9	1200
2024-04-01	1304.4	1291.8	1294.9	1200
2024-03-01	1304.4	1291.8	1294.9	1200
2024-02-01	1261.4	1240	1294.9	1200
2024-01-01	1261.4	1240	1294.9	1200
2023-12-01	1261.4	1240	1294.9	1200
2023-11-01	1219.1	1240	1212.5	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 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
2	Cape Town Open Chess Festival 2025 (U14)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Western Cape Closed 2025 (U14)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	5	4.5	Yes	Analysis
4	CT Metro North Schools Chess Individual Trials 2025 (U13 Open)	2025-02-08	2025-02-09	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 (U16)	2025-05-10	2025-05-31	Standard	Cape Town (WCT)	5	5	1	Yes	Analysis
2	Cape Town Open Chess Festival 2025 (U14)	2025-03-22	2025-03-23	Standard	Cape Town (WCT)	6	6	4	Yes	Analysis
3	Western Cape Closed 2025 (U14)	2025-03-08	2025-03-09	Standard	Cape Town (WCT)	6	5	4.5	Yes	Analysis
4	CT Metro North Schools Chess Individual Trials 2025 (U13 Open)	2025-02-08	2025-02-09	Standard	Cape Town (WCT)	6	6	3	Yes	Analysis
5	Rylib Winter Slam 2024 (Intermediate)	2024-06-19	2024-06-19	Rapid	Cape Town (WCT)	6	6	3.5	Yes	Analysis
6	Cape Town Chess Federation Closed Chess Championships 2024 (D)	2024-06-15	2024-06-17	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
7	North District School Trials 2024 (U13 Boys)	2024-02-03	2024-02-03	Standard	Cape Town (WCT)	5	5	3.5	Yes	Analysis
8	Rylib Summer Slam 2023 (Development)	2023-12-12	2023-12-12	Rapid	Cape Town (WCT)	6	6	5	Yes	Analysis
9	Cape Town Junior Chess League Finals 2023 (U16A)	2023-09-16	2023-09-16	Rapid	Cape Town (WCT)	7	5	2	Yes	Analysis
10	Rylib Chess Winter Slam 2023 (C)	2023-07-06	2023-07-06	Rapid	Cape Town (WCT)	6	6	2.5	Yes	Analysis
11	Cape Town Junior League 2nd Qualifier 2023 (U16)	2023-06-03	2023-06-03	Rapid	Cape Town (WCT)	6	5	4	Yes	Analysis
12	Cape Town Junior Chess League Q1 2023	2023-05-13	2023-05-13	Rapid	Cape Town (WCT)	7	6	1	Yes	Analysis
13	North District School Trials 2023 (U11 Boys)	2023-02-03	2023-02-04	Standard	Cape Town (WCT)	6	4	3	Yes	Analysis
14	Summer Slam 2022 (C)	2022-12-13	2022-12-13	Rapid	Cape Town (WCT)	6	6	3	Yes	Analysis

#	Games	Start				End
1	7	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Booysen, B (Bradley)				Opponent Nyandebvu, M (Mannasseh)
2	7	Tournament Cape Town Junior Chess League Finals 2023				Tournament Rylib Summer Slam 2023
		date 2023-09-16	rnd 6	type Rapid	result 1	date 2023-12-12	rnd 5	type Rapid	result 1
		Opponent Pfende, T (Takudwza)				Opponent Siteto, L (Lindokuhle)
3	4	Tournament Rylib Winter Slam 2024				Tournament Rylib Winter Slam 2024
		date 2024-06-19	rnd 2	type Rapid	result 0.5	date 2024-06-19	rnd 5	type Rapid	result 1
		Opponent Moodley, K (Kovendan)				Opponent Musekiwa, S (Stuwart)

#	Games	Start				End
1	7	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-08	rnd 2	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Booysen, B (Bradley)				Opponent Nyandebvu, M (Mannasseh)
2	6	Tournament North District School Trials 2023				Tournament North District School Trials 2024
		date 2023-02-03	rnd 2	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent He, Z (Zonghan)				Opponent Matima, A (Aiden)
3	2	Tournament Cape Town Open Chess Festival 2025				Tournament Cape Town Chess Junior League 2025
		date 2025-03-23	rnd 6	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 0.5
		Opponent Van Der Westhuizen, M (Mika)				Opponent Okonji, J (Joshua)

#	Games	Start				End
1	7	Tournament Cape Town Junior Chess League Finals 2023				Tournament Rylib Summer Slam 2023
		date 2023-09-16	rnd 6	type Rapid	result 1	date 2023-12-12	rnd 5	type Rapid	result 1
		Opponent Pfende, T (Takudwza)				Opponent Siteto, L (Lindokuhle)
2	4	Tournament Rylib Winter Slam 2024				Tournament Rylib Winter Slam 2024
		date 2024-06-19	rnd 2	type Rapid	result 0.5	date 2024-06-19	rnd 5	type Rapid	result 1
		Opponent Moodley, K (Kovendan)				Opponent Musekiwa, S (Stuwart)
3	3	Tournament Cape Town Junior League 2nd Qualifier 2023				Tournament Cape Town Junior League 2nd Qualifier 2023
		date 2023-06-03	rnd 2	type Rapid	result 1	date 2023-06-03	rnd 4	type Rapid	result 1
		Opponent Erasmus, M (Maxwell)				Opponent Barends, R (Reece)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament Cape Town Junior Chess League Finals 2023				Tournament Rylib Summer Slam 2023
		date 2023-09-16	rnd 6	type Rapid	result 1	date 2023-12-12	rnd 5	type Rapid	result 1
		Opponent Pfende, T (Takudwza)				Opponent Siteto, L (Lindokuhle)
2	5	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-09	rnd 4	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Moodley, K (Kartar)				Opponent Nyandebvu, M (Mannasseh)
3	3	Tournament Rylib Winter Slam 2024				Tournament Rylib Winter Slam 2024
		date 2024-06-19	rnd 3	type Rapid	result 1	date 2024-06-19	rnd 5	type Rapid	result 1
		Opponent Kirthan, V (Venya)				Opponent Musekiwa, S (Stuwart)

#	Games	Start				End
1	6	Tournament North District School Trials 2023				Tournament North District School Trials 2024
		date 2023-02-03	rnd 2	type Standard	result 1	date 2024-02-03	rnd 3	type Standard	result 1
		Opponent He, Z (Zonghan)				Opponent Matima, A (Aiden)
2	5	Tournament Western Cape Closed 2025				Tournament Cape Town Open Chess Festival 2025
		date 2025-03-09	rnd 4	type Standard	result 1	date 2025-03-22	rnd 2	type Standard	result 1
		Opponent Moodley, K (Kartar)				Opponent Nyandebvu, M (Mannasseh)
3	2	Tournament CT Metro North Schools Chess Individual Trials 2025				Tournament CT Metro North Schools Chess Individual Trials 2025
		date 2025-02-08	rnd 1	type Standard	result 1	date 2025-02-08	rnd 2	type Standard	result 1
		Opponent Gande, J (Justin)				Opponent Fourie, R (Ruan)

#	Games	Start				End
1	7	Tournament Cape Town Junior Chess League Finals 2023				Tournament Rylib Summer Slam 2023
		date 2023-09-16	rnd 6	type Rapid	result 1	date 2023-12-12	rnd 5	type Rapid	result 1
		Opponent Pfende, T (Takudwza)				Opponent Siteto, L (Lindokuhle)
2	3	Tournament Rylib Winter Slam 2024				Tournament Rylib Winter Slam 2024
		date 2024-06-19	rnd 3	type Rapid	result 1	date 2024-06-19	rnd 5	type Rapid	result 1
		Opponent Kirthan, V (Venya)				Opponent Musekiwa, S (Stuwart)
3	3	Tournament Cape Town Junior League 2nd Qualifier 2023				Tournament Cape Town Junior League 2nd Qualifier 2023
		date 2023-06-03	rnd 2	type Rapid	result 1	date 2023-06-03	rnd 4	type Rapid	result 1
		Opponent Erasmus, M (Maxwell)				Opponent Barends, R (Reece)

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	Pfende ,T (Takudwza)	3	3	425	1	1	425	2	2	425	0	0	0
1	Pfende ,T (Takudwza)	3	1235.3	1660.3	1	1190.8	1660.3	2	1283.1	1660.3	0	0	0
2	Bolton ,A (Alyssa)	2	2	425	2	2	425	0	0	0	0	0	0
2	Bolton ,A (Alyssa)	2	1374.2	1799.2	2	1360.5	1799.2	0	0	0	0	0	0
3	Rudman ,M (Mighail)	2	0	-425	0	0	0	2	0	-425	0	0	0
3	Rudman ,M (Mighail)	2	1348.2	923.2	0	0	0	2	1312.6	923.2	0	0	0
4	Maruma ,KB (Kamogelo)	2	0	-425	0	0	0	2	0	-425	0	0	0
4	Maruma ,KB (Kamogelo)	2	1433.2	1008.2	0	0	0	2	1374.3	1008.2	0	0	0
5	Faria ,A (Adam)	1	1	425	1	1	425	0	0	0	0	0	0
5	Faria ,A (Adam)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
6	Okonji ,J (Joshua)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
6	Okonji ,J (Joshua)	1	1360.2	1360.2	1	1354.8	1360.2	0	0	0	0	0	0
7	Booysen ,B (Bradley)	1	1	425	1	1	425	0	0	0	0	0	0
7	Booysen ,B (Bradley)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Moodley ,K (Kartar)	1	1	425	1	1	425	0	0	0	0	0	0
8	Moodley ,K (Kartar)	1	1408.5	1833.5	1	1326.6	1833.5	0	0	0	0	0	0
9	Van Staaden ,BH (Burton)	1	0	-425	1	0	-425	0	0	0	0	0	0
9	Van Staaden ,BH (Burton)	1	1322.4	897.4	1	1324.5	897.4	0	0	0	0	0	0
10	Meissenheimer ,K (Kyle)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Meissenheimer ,K (Kyle)	1	1554.2	1129.2	1	1443.9	1129.2	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Sonamzi, O (Ovayo)

Ratings

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms