Chess South Africa Ratings Database

PLAYER PAGE

Personal

Petronio, A (Alessandro)

Chess SA id

106048667

FIDE id

Date of birth

2006-07-09 (U20)

Gender

Male

Region

Ethekwini (KED)

Citizen

RSA

Titles

Chess SA registered

Last active game

2023-02-25

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1451.4	1431.1	1199.9	1129.1
Raw rating	1451.4	1431.1	1199.9	1129.1
Weighted rating	1451.4	1431.1	1199.9	1129.1
Weighted performance	765.2	582.3	0	0
Floor	951.4	946.8	699.9	629.1
K-factor	32	32	40	40
Min/Max rating change allowed	115.9	119.3	165.8	183.4
Highest rating	1451.4 2024-02-01	1451.2 2019-07-01	1577.4 2023-02-01	1204.8 2020-01-01
Highest raw rating	1451.4 2024-02-01	1446.8 2019-08-01	1199.9 2024-02-01	1129.1 2024-02-01
Highest weighted rating	1451.4 2025-02-01	1446.8 2025-02-01	1199.9 2024-11-01	1129.1 2024-11-01
Highest weighted performance	1450.3 2019-07-01	1451.2 2019-07-01	1577.4 2023-02-01	1204.8 2020-01-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1451.4	1431.1	1199.9	1129.1
Analysis
Rating	1451.4	1431.1	1199.9	1129.1
Raw rating	1451.4	1431.1	1199.9	1129.1
Weighted rating	1451.4	1431.1	1199.9
Weighted performance	765.2	582.3	0
K-factor	32	32	40	40
Floor	951.4	946.8	699.9	629.1
Max/Min rating change allowed	115.9	119.3	165.8	183.4
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	1451.4	1431.1	1199.9	1129.1
New weighted rating	1451.4	1431.1	1199.9	1129.1
New weighted performance	764.7	581.8	0	0
Temp new rating	1451.4	1431.1	1199.9	1129.1
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1451.4	1431.1	1199.9	1129.1
New K-factor	32	32	40	40
New floor	951.4	946.8	699.9	629.1

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	5	0	5	0
	7	7	0	0
	0	0	0	0
History	466	392	67	7

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	U20
Region	Ethekwini (KED)
Province	KwaZulu Natal (KZ)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U20	-1		-1		-1
U20 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	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	136	86	63.24	112.5	1213.2	1325.7
Standard	124	77	62.1	102.8	1205.7	1308.5
Rapid	5	4.5	90	340	1273.7	1613.7
Blitz	7	4.5	64.29	121.4	1303	1424.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1451.4	1431.1	1199.9	1129.1
2025-09-01	1451.4	1431.1	1199.9	1129.1
2025-08-01	1451.4	1431.1	1199.9	1129.1
2025-07-01	1451.4	1431.1	1199.9	1129.1
2025-06-01	1451.4	1431.1	1199.9	1129.1
2025-05-01	1451.4	1431.1	1199.9	1129.1
2025-04-01	1451.4	1431.1	1199.9	1129.1
2025-03-01	1451.4	1431.1	1199.9	1129.1
2025-02-01	1451.4	1431.1	1199.9	1129.1
2025-01-01	1451.4	1431.1	1199.9	1129.1
2024-12-01	1451.4	1431.1	1199.9	1129.1
2024-11-01	1451.4	1431.1	1199.9	1129.1
2024-10-01	1451.4	1431.1	1199.9	1129.1
2024-09-01	1451.4	1431.1	1199.9	1129.1
2024-08-01	1451.4	1431.1	1199.9	1129.1
2024-07-01	1451.4	1431.1	1199.9	1129.1
2024-06-01	1451.4	1431.1	1199.9	1129.1
2024-08-01	1451.4	1431.1	1199.9	1129.1
2024-04-01	1451.4	1431.1	1199.9	1129.1
2024-03-01	1451.4	1431.1	1199.9	1129.1
2024-02-01	1451.4	1431.1	1199.9	1129.1
2024-01-01	1451.4	1431.1	1199.9	1129.1
2023-12-01	1451.4	1431.1	1199.9	1129.1
2023-11-01	1451.4	1431.1	1199.9	1129.1

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	Crawford International North Coast Chess Challenge 2023 (High School)	2023-02-25	2023-02-25	Rapid	iLembe (KIK)	5	5	4.5	Yes	Analysis
2	2022 South African Junior Team Chess Championships (U18 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
3	2020 ECA Youth Trials (U16)	2020-02-22	2020-02-23	Standard	Ethekwini (KED)	6	6	4	Yes	Analysis
4	2019 South African Juior Blitz Championship (B)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	7	4.5	Yes	Analysis
5	2019 South African Junior Team Championships (U14A)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
6	2019 Ethekwini Youth Championships (U12+U14)	2019-09-23	2019-09-25	Standard	Ethekwini (KED)	6	6	3.5	Yes	Analysis
7	2019 Ethekwini 3rd Youth Trials (U14)	2019-07-20	2019-07-21	Standard	Ethekwini (KED)	6	6	4.5	Yes	Analysis
8	2019 Ethekwini Youth Trials 2nd (U14)	2019-04-13	2019-04-14	Standard	Ethekwini (KED)	6	6	4.5	Yes	Analysis
9	2019 Ethekwini Youth Trials (U14)	2019-03-09	2019-03-10	Standard	Ethekwini (KED)	6	6	5	Yes	Analysis
10	2019 Ethekwini Open (B)	2019-03-30	2019-03-31	Standard	Ethekwini (KED)	6	6	4	Yes	Analysis
11	2019 JR Mthembu Memorial Swiss (Primary School)	2019-02-16	2019-02-17	Standard	Ethekwini (KED)	5	5	4	Yes	Analysis
12	2018 Wild Card Chess Championships (U14 Open)	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
13	South African Junior Team Championships 2018 (U14A)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	4	Yes	Analysis
14	2018 Heritage Day Open (A)	2018-09-23	2018-09-24	Standard	Ethekwini (KED)	6	6	3	Yes	Analysis
15	2018 Mandela 67 Open (A)	2018-07-21	2018-07-22	Standard	Ethekwini (KED)	6	6	3	Yes	Analysis
16	2018 Ethekwini Youth Trials 2 (U14)	2018-05-19	2018-05-20	Standard	Ethekwini (KED)	6	6	4	Yes	Analysis
17	2018 South African Junior Closed Chess Championships (U12 Open)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	4.5	Yes	Analysis
18	2018 Ethekwini Open (A)	2018-03-24	2018-03-25	Standard	Ethekwini (KED)	6	6	2	Yes	Analysis
19	2018 Ethekwini Youth Trials (U14)	2018-02-24	2018-02-25	Standard	Ethekwini (KED)	6	6	4.5	Yes	Analysis
20	South African Junior Wildcard Championships 2017 (U12 Open)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	5	Yes	Analysis
21	South African Junior Team Championships 2017 (U12A)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	5.5	Yes	Analysis

#	Games	Start				End
1	12	Tournament 2019 JR Mthembu Memorial Swiss				Tournament 2019 Ethekwini Open
		date 2019-02-17	rnd 4	type Standard	result 1	date 2019-03-31	rnd 4	type Standard	result 1
		Opponent Padayachee, K (Kiegan)				Opponent Mkhize, N (Nosipho)
2	12	Tournament South African Junior Team Championships 2017				Tournament South African Junior Wildcard Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-11	rnd 5	type Standard	result 1
		Opponent Jordaan, W (Wian)				Opponent Govender, L (Lesharn)
3	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-04	rnd 2	type Standard	result 1	date 2020-01-05	rnd 4	type Blitz	result 1
		Opponent Boshoma, C (Chisomo)				Opponent Schnabel, SP (Stephan)

#	Games	Start				End
1	12	Tournament 2019 JR Mthembu Memorial Swiss				Tournament 2019 Ethekwini Open
		date 2019-02-17	rnd 4	type Standard	result 1	date 2019-03-31	rnd 4	type Standard	result 1
		Opponent Padayachee, K (Kiegan)				Opponent Mkhize, N (Nosipho)
2	12	Tournament South African Junior Team Championships 2017				Tournament South African Junior Wildcard Championships 2017
		date 2018-01-04	rnd 1	type Standard	result 1	date 2018-01-11	rnd 5	type Standard	result 1
		Opponent Jordaan, W (Wian)				Opponent Govender, L (Lesharn)
3	6	Tournament 2019 Ethekwini Open				Tournament 2019 Ethekwini Youth Trials 2nd
		date 2019-03-31	rnd 6	type Standard	result 0.5	date 2019-04-14	rnd 5	type Standard	result 1
		Opponent Zikalala, M (Minenhle)				Opponent Govender, K (Keniesha)

#	Games	Start				End
1	5	Tournament Crawford International North Coast Chess Challenge 2023				Tournament Crawford International North Coast Chess Challenge 2023
		date 2023-02-25	rnd 1	type Rapid	result 1	date 2023-02-25	rnd 5	type Rapid	result 0.5
		Opponent Altern, K (Kaylib)				Opponent Subramoney, T (Tivek)

#	Games	Start				End
1	4	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 1	type Blitz	result 1	date 2020-01-05	rnd 4	type Blitz	result 1
		Opponent Edeani, T (Tobenna)				Opponent Schnabel, SP (Stephan)
2	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 6	type Blitz	result 1	date 2020-01-05	rnd 6	type Blitz	result 1
		Opponent Froom, D (Darryl)				Opponent Froom, D (Darryl)

#	Games	Start				End
1	5	Tournament 2019 JR Mthembu Memorial Swiss				Tournament 2019 Ethekwini Youth Trials
		date 2019-02-17	rnd 4	type Standard	result 1	date 2019-03-09	rnd 3	type Standard	result 1
		Opponent Padayachee, K (Kiegan)				Opponent Radhakrishna, S (Shohiel)
2	4	Tournament Crawford International North Coast Chess Challenge 2023				Tournament Crawford International North Coast Chess Challenge 2023
		date 2023-02-25	rnd 1	type Rapid	result 1	date 2023-02-25	rnd 4	type Rapid	result 1
		Opponent Altern, K (Kaylib)				Opponent Oertel, H (Hayden)
3	4	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-04	rnd 2	type Standard	result 1	date 2020-01-05	rnd 2	type Blitz	result 1
		Opponent Boshoma, C (Chisomo)				Opponent Phoka, T (Thabiso)

#	Games	Start				End
1	5	Tournament 2019 JR Mthembu Memorial Swiss				Tournament 2019 Ethekwini Youth Trials
		date 2019-02-17	rnd 4	type Standard	result 1	date 2019-03-09	rnd 3	type Standard	result 1
		Opponent Padayachee, K (Kiegan)				Opponent Radhakrishna, S (Shohiel)
2	4	Tournament 2018 Heritage Day Open				Tournament South African Junior Team Championships 2018
		date 2018-09-24	rnd 4	type Standard	result 1	date 2018-12-16	rnd 1	type Standard	result 1
		Opponent Dlamini, L (Lindokuhle)				Opponent Smith, J (John)
3	3	Tournament 2019 Ethekwini 3rd Youth Trials				Tournament 2019 Ethekwini 3rd Youth Trials
		date 2019-07-20	rnd 1	type Standard	result 1	date 2019-07-20	rnd 3	type Standard	result 1
		Opponent Ananthan, S (Sankavi)				Opponent Ndlovu, B (Banele)

#	Games	Start				End
1	4	Tournament Crawford International North Coast Chess Challenge 2023				Tournament Crawford International North Coast Chess Challenge 2023
		date 2023-02-25	rnd 1	type Rapid	result 1	date 2023-02-25	rnd 4	type Rapid	result 1
		Opponent Altern, K (Kaylib)				Opponent Oertel, H (Hayden)

#	Games	Start				End
1	2	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 1	type Blitz	result 1	date 2020-01-05	rnd 2	type Blitz	result 1
		Opponent Edeani, T (Tobenna)				Opponent Phoka, T (Thabiso)
2	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 6	type Blitz	result 1	date 2020-01-05	rnd 6	type Blitz	result 1
		Opponent Froom, D (Darryl)				Opponent Froom, D (Darryl)
3	1	Tournament 2019 South African Juior Blitz Championship				Tournament 2019 South African Juior Blitz Championship
		date 2020-01-05	rnd 4	type Blitz	result 1	date 2020-01-05	rnd 4	type Blitz	result 1
		Opponent Schnabel, SP (Stephan)				Opponent Schnabel, SP (Stephan)

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	Govender ,L (Lesharn)	6	4	141.7	6	4	141.7	0	0	0	0	0	0
1	Govender ,L (Lesharn)	6	1143.7	1285.3	6	1149.8	1285.3	0	0	0	0	0	0
2	Reddy ,T (Thacian)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
2	Reddy ,T (Thacian)	3	1142.1	1425.5	3	1144.7	1425.5	0	0	0	0	0	0
3	Govender ,K (Keniesha)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
3	Govender ,K (Keniesha)	3	1330.5	1472.1	3	1324.9	1472.1	0	0	0	0	0	0
4	Radhakrishna ,S (Shohiel)	2	2	425	2	2	425	0	0	0	0	0	0
4	Radhakrishna ,S (Shohiel)	2	1213.3	1638.3	2	1215.6	1638.3	0	0	0	0	0	0
5	Aldum ,R (Rocco)	2	1	0	2	1	0	0	0	0	0	0	0
5	Aldum ,R (Rocco)	2	1042.2	1042.2	2	1041.2	1042.2	0	0	0	0	0	0
6	Gounder ,R (Rowan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
6	Gounder ,R (Rowan)	2	1599	1386.5	2	1593.4	1386.5	0	0	0	0	0	0
7	Blomerus ,K (Kian)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Blomerus ,K (Kian)	2	1229.1	804.1	2	1228.1	804.1	0	0	0	0	0	0
8	Ndlovu ,B (Banele)	2	1	0	2	1	0	0	0	0	0	0	0
8	Ndlovu ,B (Banele)	2	1230.3	1230.3	2	1247.9	1230.3	0	0	0	0	0	0
9	Snyman ,D (David)	2	1	0	2	1	0	0	0	0	0	0	0
9	Snyman ,D (David)	2	889.7	889.7	2	881	889.7	0	0	0	0	0	0
10	Millard ,C (Charlotte)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Millard ,C (Charlotte)	2	1326.1	901.1	2	1339.2	901.1	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Petronio, A (Alessandro)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms