Chess South Africa Ratings Database

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Personal

Nero, J (Juan)

Chess SA id

102050877

FIDE id

Date of birth

2002-07-21 (Adult)

Gender

Male

Region

West Coast (WCU)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-05-04

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1480.6	1399.9	1295.7	1162.2
Raw rating	1480.6	1399.9	1295.7	1162.2
Weighted rating	1447.7	1357	1295.7	1162.2
Weighted performance	1368.4	1319.7	738.9	0
Floor	980.6	899.9	795.7	662.2
K-factor	32	40	36	40
Min/Max rating change allowed	111.2	124.7	144.7	175
Highest rating	1486.6 2024-08-01	1399.9 2025-06-01	1295.7 2024-02-01	1561.4 2018-02-01
Highest raw rating	1480.6 2025-06-01	1399.9 2025-06-01	1295.7 2024-02-01	1162.2 2024-02-01
Highest weighted rating	1435.8 2025-08-01	1343.3 2025-08-01	1294.8 2025-08-01	1162.2 2024-11-01
Highest weighted performance	1486.6 2025-06-01	1383.4 2024-08-01	1200 2018-02-01	1561.4 2018-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1480.6	1399.9	1295.7	1162.2
Analysis
Rating	1480.6	1399.9	1295.7	1162.2
Raw rating	1480.6	1399.9	1295.7	1162.2
Weighted rating	1447.7	1357	1295.7
Weighted performance	1368.4	1319.7	738.9
K-factor	32	40	36	40
Floor	980.6	899.9	795.7	662.2
Max/Min rating change allowed	111.2	124.7	144.7	175
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	1480.6	1399.9	1295.7	1162.2
New weighted rating	1452.7	1363	1295.7	1162.2
New weighted performance	1366.7	1318.1	737.5	0
Temp new rating	1480.6	1399.9	1295.7	1162.2
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1480.6	1399.9	1295.7	1162.2
New K-factor	32	40	36	40
New floor	980.6	899.9	795.7	662.2

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	5	5	0	0
	12	12	0	0
	20	10	10	0
	0	0	0	0
	0	0	0	0
History	194	100	70	24

Games since
	Main 22	Standard 17		Rapid 5		Blitz 0
Gender	Male
Age group	Adult
Region	West Coast (WCU)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
Adult	-1		-1		-1
Adult 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	5	4	80	255	1349.8	1604.8
Standard	5	4	80	255	1349.8	1604.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	102	66	64.71	125	1222.4	1347.4
Standard	58	34.5	59.48	80.6	1258.3	1338.9
Rapid	32	21.5	67.19	146.1	1191.9	1338
Blitz	12	10	83.33	283.3	1130.1	1413.4

Date	Main	Standard	Rapid	Blitz
2025-09-30	1480.6	1399.9	1295.7	1162.2
2025-09-01	1480.6	1399.9	1295.7	1162.2
2025-08-01	1480.6	1399.9	1295.7	1162.2
2025-07-01	1480.6	1399.9	1295.7	1162.2
2025-06-01	1480.6	1399.9	1295.7	1162.2
2025-05-01	1455.2	1357.1	1295.7	1162.2
2025-04-01	1455.2	1357.1	1295.7	1162.2
2025-03-01	1455.2	1357.1	1295.7	1162.2
2025-02-01	1455.2	1357.1	1295.7	1162.2
2025-01-01	1455.2	1357.1	1295.7	1162.2
2024-12-01	1455.2	1357.1	1295.7	1162.2
2024-11-01	1455.2	1357.1	1295.7	1162.2
2024-10-01	1455.2	1357.1	1295.7	1162.2
2024-09-01	1455.2	1357.1	1295.7	1162.2
2024-08-01	1388.9	1306.1	1295.7	1162.2
2024-07-01	1388.9	1306.1	1295.7	1162.2
2024-06-01	1388.9	1306.1	1295.7	1162.2
2024-08-01	1338.7	1236.6	1295.7	1162.2
2024-04-01	1338.7	1236.6	1295.7	1162.2
2024-03-01	1338.7	1236.6	1295.7	1162.2
2024-02-01	1338.7	1236.6	1295.7	1162.2
2024-01-01	1338.7	1236.6	1295.7	1162.2
2023-12-01	1338.7	1236.6	1295.7	1162.2
2023-11-01	1338.7	1236.6	1295.7	1162.2

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	West Coast And Mykonos Open 2025 (Advanced)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	6	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	West Coast And Mykonos Open 2025 (Advanced)	2025-05-02	2025-05-04	Standard	West Coast (WCU)	6	5	4	Yes	Analysis
2	Western Cape Women�s Championship 2024 (Advanced)	2024-08-08	2024-08-11	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
3	West Coast & Mykonos Open 2024 (Open)	2024-05-17	2024-05-19	Standard	West Coast (WCU)	6	6	4.5	Yes	Analysis
4	Kasparov Fischer 2023 (Open)	2023-11-11	2023-11-11	Rapid	West Coast (WCU)	5	5	5	Yes	Analysis
5	CW Top Schools 2023 (Intermediate)	2023-08-12	2023-08-12	Standard	West Coast (WCU)	5	5	3.5	Yes	Analysis
6	West Coast Open 2023 (Elite)	2023-05-20	2023-06-03	Standard	West Coast (WCU)	5	5	3	Yes	Analysis
7	St Helenabaai Open 2023 (Elite)	2023-05-13	2023-05-13	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
8	Onder Weskus Prestige 2020 (U18 Boys)	2020-02-15	2020-02-22	Standard	West Coast (WCU)	6	0	0	No	Analysis
9	Western Cape Top Schools 2019 (U18 Mix)	2019-08-31	2019-09-01	Standard	Cape Winelands (WCW)	5	4	2	Yes	Analysis
10	Weskus Topskole 2019 (U18)	2019-07-20	2019-07-20	Rapid	West Coast (WCU)	3	3	3	Yes	Analysis
11	Weskus Mall Rapid 2019 (Adults)	2019-06-15	2019-06-15	Rapid	West Coast (WCU)	5	2	0	Yes	Analysis
12	Weskus Skole Prestige Skaak Kampioenskappe 2019 (O18 Seuns)	2019-03-02	2019-04-06	Standard	West Coast (WCU)	6	4	1	Yes	Analysis
13	Onder-Weskus Skole Proewe 2019 (O18 Seuns)	2019-02-16	2019-02-23	Rapid	West Coast (WCU)	8	8	6	Yes	Analysis
14	Coaching Clinic Tournament 2018	2018-10-02	2018-10-04	Standard	West Coast (WCU)	7	5	3.5	Yes	Analysis
15	Western Cape Kings & Queens 2018 (Boys)	2018-10-20	2018-10-20	Rapid	Cape Winelands (WCW)	5	4	1.5	Yes	Analysis
16	West Coast League 2018 (A)	2018-07-07	2018-09-01	Standard	West Coast (WCU)	5	2	2	Yes	Analysis
17	Basil Ellman Tournament 2018 (Adult)	2018-06-16	2018-06-16	Rapid	West Coast (WCU)	5	5	3	Yes	Analysis
18	Western Cape Schools Individuals 2018 (U18 Boys)	2018-05-19	2018-05-20	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
19	West Coast Open 2018 (Prestige)	2018-04-28	2018-04-28	Standard	West Coast (WCU)	5	5	3	Yes	Analysis
20	Freedom Day Blitz 2018 (Men)	2018-04-27	2018-04-27	Blitz	West Coast (WCU)	7	7	5	Yes	Analysis
21	West Coast Schools Prestige Individual Championship 2018 (U18 Boys)	2018-03-10	2018-03-24	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
22	Mykonos Blitz U8 (U14+U16)	2018-02-04	2018-02-04	Blitz	West Coast (WCU)	5	5	5	Yes	Analysis

#	Games	Start				End
1	10	Tournament Western Cape Women�s Championship 2024				Tournament West Coast And Mykonos Open 2025
		date 2024-08-09	rnd 2	type Standard	result 1	date 2025-05-04	rnd 6	type Standard	result 0.5
		Opponent Topp, K (Kelvin)				Opponent Chichava, B (Bongani)
2	10	Tournament Kasparov Fischer 2023				Tournament West Coast & Mykonos Open 2024
		date 2023-11-11	rnd 1	type Rapid	result 1	date 2024-05-19	rnd 5	type Standard	result 1
		Opponent Cloete, G (Gillian)				Opponent Jordaan, H (Hano)
3	6	Tournament Basil Ellman Tournament 2018				Tournament Coaching Clinic Tournament 2018
		date 2018-06-16	rnd 5	type Rapid	result 1	date 2018-10-04	rnd 5	type Standard	result 0.5
		Opponent Ellman, A (Anne-Belle)				Opponent Van Nelson, M (Melchizedek)

#	Games	Start				End
1	10	Tournament Western Cape Women�s Championship 2024				Tournament West Coast And Mykonos Open 2025
		date 2024-08-09	rnd 2	type Standard	result 1	date 2025-05-04	rnd 6	type Standard	result 0.5
		Opponent Topp, K (Kelvin)				Opponent Chichava, B (Bongani)
2	5	Tournament West Coast & Mykonos Open 2024				Tournament West Coast & Mykonos Open 2024
		date 2024-05-17	rnd 1	type Standard	result 1	date 2024-05-19	rnd 5	type Standard	result 1
		Opponent Shapiro, E (Eli)				Opponent Jordaan, H (Hano)
3	5	Tournament West Coast Open 2023				Tournament CW Top Schools 2023
		date 2023-06-03	rnd 5	type Standard	result 1	date 2023-08-12	rnd 4	type Standard	result 1
		Opponent Duiker, P (Phillip)				Opponent Stern, M (Mason)

#	Games	Start				End
1	6	Tournament St Helenabaai Open 2023				Tournament Kasparov Fischer 2023
		date 2023-05-13	rnd 5	type Rapid	result 1	date 2023-11-11	rnd 5	type Rapid	result 1
		Opponent Titus, S (Sonay)				Opponent Adams, J (Jenito)
2	4	Tournament Weskus Topskole 2019				Tournament St Helenabaai Open 2023
		date 2019-07-20	rnd 1	type Rapid	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Richards, E (Elijah)				Opponent Duiker, P (Phillip)
3	2	Tournament Onder-Weskus Skole Proewe 2019				Tournament Onder-Weskus Skole Proewe 2019
		date 2019-02-23	rnd 7	type Rapid	result 1	date 2019-02-23	rnd 8	type Rapid	result 1
		Opponent Thipa, N (Nepang)				Opponent Wilson, C (Caden)

#	Games	Start				End
1	6	Tournament Mykonos Blitz U8				Tournament Freedom Day Blitz 2018
		date 2018-02-04	rnd 1	type Blitz	result 1	date 2018-04-27	rnd 1	type Blitz	result 1
		Opponent Van Schalkwyk, D (Damian)				Opponent Koopman, A (Aidan)
2	3	Tournament Freedom Day Blitz 2018				Tournament Freedom Day Blitz 2018
		date 2018-04-27	rnd 3	type Blitz	result 1	date 2018-04-27	rnd 5	type Blitz	result 1
		Opponent Joseph, R (Riaan)				Opponent Wilson, C (Caden)
3	1	Tournament Freedom Day Blitz 2018				Tournament Freedom Day Blitz 2018
		date 2018-04-27	rnd 7	type Blitz	result 1	date 2018-04-27	rnd 7	type Blitz	result 1
		Opponent Franzman, A (Archard)				Opponent Franzman, A (Archard)

#	Games	Start				End
1	7	Tournament Kasparov Fischer 2023				Tournament West Coast & Mykonos Open 2024
		date 2023-11-11	rnd 1	type Rapid	result 1	date 2024-05-18	rnd 2	type Standard	result 1
		Opponent Cloete, G (Gillian)				Opponent Rogov, E (Evgenij)
2	5	Tournament Basil Ellman Tournament 2018				Tournament Coaching Clinic Tournament 2018
		date 2018-06-16	rnd 5	type Rapid	result 1	date 2018-10-03	rnd 4	type Standard	result 1
		Opponent Ellman, A (Anne-Belle)				Opponent Kariem, S (Shakir)
3	5	Tournament Mykonos Blitz U8				Tournament Mykonos Blitz U8
		date 2018-02-04	rnd 1	type Blitz	result 1	date 2018-02-04	rnd 5	type Blitz	result 1
		Opponent Van Schalkwyk, D (Damian)				Opponent Bezuidenhoudt, K (Keanu)

#	Games	Start				End
1	4	Tournament West Coast League 2018				Tournament Coaching Clinic Tournament 2018
		date 2018-07-07	rnd 2	type Standard	result 1	date 2018-10-03	rnd 4	type Standard	result 1
		Opponent Richards, E (Elijah)				Opponent Kariem, S (Shakir)
2	3	Tournament West Coast Open 2023				Tournament CW Top Schools 2023
		date 2023-06-03	rnd 5	type Standard	result 1	date 2023-08-12	rnd 2	type Standard	result 1
		Opponent Duiker, P (Phillip)				Opponent Campbell, A (Anje)
3	2	Tournament West Coast And Mykonos Open 2025				Tournament West Coast And Mykonos Open 2025
		date 2025-05-02	rnd 1	type Standard	result 1	date 2025-05-03	rnd 3	type Standard	result 1
		Opponent Maarman, L (Luciano)				Opponent Matogo, D (Dennis)

#	Games	Start				End
1	6	Tournament St Helenabaai Open 2023				Tournament Kasparov Fischer 2023
		date 2023-05-13	rnd 5	type Rapid	result 1	date 2023-11-11	rnd 5	type Rapid	result 1
		Opponent Titus, S (Sonay)				Opponent Adams, J (Jenito)
2	4	Tournament Weskus Topskole 2019				Tournament St Helenabaai Open 2023
		date 2019-07-20	rnd 1	type Rapid	result 1	date 2023-05-13	rnd 1	type Rapid	result 1
		Opponent Richards, E (Elijah)				Opponent Duiker, P (Phillip)
3	2	Tournament Onder-Weskus Skole Proewe 2019				Tournament Onder-Weskus Skole Proewe 2019
		date 2019-02-23	rnd 7	type Rapid	result 1	date 2019-02-23	rnd 8	type Rapid	result 1
		Opponent Thipa, N (Nepang)				Opponent Wilson, C (Caden)

#	Games	Start				End
1	6	Tournament Mykonos Blitz U8				Tournament Freedom Day Blitz 2018
		date 2018-02-04	rnd 1	type Blitz	result 1	date 2018-04-27	rnd 1	type Blitz	result 1
		Opponent Van Schalkwyk, D (Damian)				Opponent Koopman, A (Aidan)
2	3	Tournament Freedom Day Blitz 2018				Tournament Freedom Day Blitz 2018
		date 2018-04-27	rnd 3	type Blitz	result 1	date 2018-04-27	rnd 5	type Blitz	result 1
		Opponent Joseph, R (Riaan)				Opponent Wilson, C (Caden)
3	1	Tournament Freedom Day Blitz 2018				Tournament Freedom Day Blitz 2018
		date 2018-04-27	rnd 7	type Blitz	result 1	date 2018-04-27	rnd 7	type Blitz	result 1
		Opponent Franzman, A (Archard)				Opponent Franzman, A (Archard)

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	De Wee ,J (Jayden)	4	3.5	318.8	2	1.5	212.5	2	2	425	0	0	0
1	De Wee ,J (Jayden)	4	1148.2	1466.9	2	1117.2	1360.7	2	1198.4	1573.2	0	0	0
2	Richards ,E (Elijah)	3	3	425	1	1	425	1	1	425	1	1	425
2	Richards ,E (Elijah)	3	1111.3	1536.3	1	1134	1536.3	1	1130.8	1536.3	1	1200	1536.3
3	Lesch ,K (Keano)	3	3	425	0	0	0	2	2	425	1	1	425
3	Lesch ,K (Keano)	3	900.6	1325.6	0	0	0	2	893.4	1325.6	1	873.8	1325.6
4	Minnaar ,E (Ethan)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
4	Minnaar ,E (Ethan)	2	1201.8	989.3	2	1134.7	989.3	0	0	0	0	0	0
5	Kariem ,S (Shakir)	2	1	0	2	1	0	0	0	0	0	0	0
5	Kariem ,S (Shakir)	2	1380.4	1380.4	2	1382.7	1380.4	0	0	0	0	0	0
6	Klaase ,VAG (Vladimir)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
6	Klaase ,VAG (Vladimir)	2	1492.4	1279.9	2	1445.8	1279.9	0	0	0	0	0	0
7	Koopman ,T (Tyler)	2	1	0	1	1	425	1	0	-425	0	0	0
7	Koopman ,T (Tyler)	2	1463.9	1463.9	1	1287.7	1888.9	1	1294.8	1038.9	0	0	0
8	Douries ,C (Charl)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Douries ,C (Charl)	2	1312.1	887.1	1	1324.4	887.1	1	935	887.1	0	0	0
9	Markus ,C (Christo)	2	2	425	1	1	425	1	1	425	0	0	0
9	Markus ,C (Christo)	2	1169.8	1594.8	1	1200	1594.8	1	1200	1594.8	0	0	0
10	Duiker ,P (Phillip)	2	2	425	1	1	425	1	1	425	0	0	0
10	Duiker ,P (Phillip)	2	1296.5	1721.5	1	1287	1721.5	1	1286	1721.5	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Nero, J (Juan)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms