Chess South Africa Ratings Database

PLAYER PAGE

Personal

De Abreu, RN (Roberto Nicolau)

Chess SA id

196006193

FIDE id

Date of birth

1996-11-29 (Adult)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2022-11-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	2249.3	2266.4	2143.6	2088
Raw rating	2249.3	2266.4	2143.6	2088
Weighted rating	2248.7	2265.8	2143.6	2088
Weighted performance	931	643.5	0	0
Floor	1749.3	1766.4	1648.4	1648.4
K-factor	16	16	20	20
Min/Max rating change allowed	37.2	36.3	43.2	46.8
Highest rating	2349.2 2018-01-01	2349.2 2018-01-01	2148.4 2018-02-01	2148.4 2019-09-01
Highest raw rating	2249.3 2024-02-01	2266.4 2024-02-01	2148.4 2018-02-01	2148.4 2020-01-01
Highest weighted rating	2247.2 2025-08-01	2264.3 2025-08-01	2148.4 2018-02-01	2148.4 2019-09-01
Highest weighted performance	2349.2 2018-01-01	2349.2 2018-01-01	2090.9 2018-05-01	1766.9 2022-11-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	2249.3	2266.4	2143.6	2088
Analysis
Rating	2249.3	2266.4	2143.6	2088
Raw rating	2249.3	2266.4	2143.6	2088
Weighted rating	2248.7	2265.8	2143.6
Weighted performance	931	643.5	0
K-factor	16	16	20	20
Floor	1749.3	1766.4	1648.4	1648.4
Max/Min rating change allowed	37.2	36.3	43.2	46.8
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	2249.3	2266.4	2143.6	2088
New weighted rating	2249.1	2266.2	2143.6	2088
New weighted performance	930.4	642.7	0	0
Temp new rating	2249.3	2266.4	2143.6	2088
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	2249.3	2266.4	2143.6	2088
New K-factor	16	16	20	20
New floor	1749.3	1766.4	1648.4	1648.4

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	0	0	0	0
	0	0	0	0
	0	0	0	0
	21	0	0	21
	0	0	0	0
History	1105	972	64	69

Games since
	Main 0	Standard 0		Rapid 0		Blitz 0
Gender	Male
Age group	Adult
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
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	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	134	88.5	66.04	136.4	1899.2	2035.6
Standard	103	68.5	66.5	140.3	1936	2076.3
Rapid	10	5.5	55	42.5	2028.1	2070.6
Blitz	21	14.5	69.05	161.9	1657.3	1819.2

Date	Main	Standard	Rapid	Blitz
2025-09-30	2249.3	2266.4	2143.6	2088
2025-09-01	2249.3	2266.4	2143.6	2088
2025-08-01	2249.3	2266.4	2143.6	2088
2025-07-01	2249.3	2266.4	2143.6	2088
2025-06-01	2249.3	2266.4	2143.6	2088
2025-05-01	2249.3	2266.4	2143.6	2088
2025-04-01	2249.3	2266.4	2143.6	2088
2025-03-01	2249.3	2266.4	2143.6	2088
2025-02-01	2249.3	2266.4	2143.6	2088
2025-01-01	2249.3	2266.4	2143.6	2088
2024-12-01	2249.3	2266.4	2143.6	2088
2024-11-01	2249.3	2266.4	2143.6	2088
2024-10-01	2249.3	2266.4	2143.6	2088
2024-09-01	2249.3	2266.4	2143.6	2088
2024-08-01	2249.3	2266.4	2143.6	2088
2024-07-01	2249.3	2266.4	2143.6	2088
2024-06-01	2249.3	2266.4	2143.6	2088
2024-08-01	2249.3	2266.4	2143.6	2088
2024-04-01	2249.3	2266.4	2143.6	2088
2024-03-01	2249.3	2266.4	2143.6	2088
2024-02-01	2249.3	2266.4	2143.6	2088
2024-01-01	2249.3	2266.4	2143.6	2088
2023-12-01	2186.7	2203.2	2143.6	2088
2023-11-01	2186.7	2203.2	2143.6	2088

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	FNB Chessheroes Anity Bullying 2022 (Blitz)	2022-11-05	2022-11-05	Blitz	Johannesburg Metro (GJM)	7	7	5	Yes	Analysis
2	Chessheroes Bowls Club Zoo Lake Challenge 2022	2022-07-02	2022-07-02	Blitz	Johannesburg Metro (GJM)	7	7	4.5	Yes	Analysis
3	Chessheroes Choo Choo Challenge 2022	2022-01-08	2022-01-08	Blitz	Tshwane (GTP)	7	7	5	Yes	Analysis
4	Prague International Chess Festival 2020	2020-02-14	2020-02-22	Standard	Czech Republic (CZE)	9	8	4.5	Yes	Analysis
5	Gibraltar International Chess Festival - Challengers B 2020	2020-01-25	2020-01-29	Standard	England (ENG)	5	5	4	Yes	Analysis
6	Gibraltar International Chess Festival - Challengers A 2020	2020-01-20	2020-01-24	Standard	England (ENG)	5	5	4.5	Yes	Analysis
7	Gibraltar International Chess Festival Masters 2020	2020-01-21	2020-01-30	Standard	England (ENG)	10	10	4	Yes	Analysis
8	2019 Inter Region Chess Championships	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
9	2019 South African Closed Chess Championships (Open A)	2019-12-07	2019-12-17	Standard	Cape Town (WCT)	11	11	6	Yes	Analysis
10	2019 USSA Championships (Open)	2019-12-02	2019-12-06	Standard	Sarah Baartman (ESB)	9	9	6	Yes	Analysis
11	2019 National Club Chess Championships (A)	2019-09-27	2019-09-29	Standard	Cape Town (WCT)	6	5	4	Yes	Analysis
12	JNW Club - Helpmekaar Kollege Open 2019 (A)	2019-07-06	2019-07-06	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
13	2018 Inter Region Chess Championships	2018-12-21	2018-12-24	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
14	2018 USSA Championship (Open)	2018-07-02	2018-07-06	Standard	Gert Sibande (MGS)	9	9	7	Yes	Analysis
15	SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige)	2018-05-19	2018-05-20	Rapid	Tshwane (GTP)	10	10	5.5	Yes	Analysis
16	Chessnuts - Charterhouse Open 2018 (A)	2018-05-11	2018-05-12	Standard	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
17	The Outpost Chess Club Open 2018 (A)	2018-03-16	2018-03-17	Standard	Johannesburg Metro (GJM)	6	6	4.5	Yes	Analysis
18	JCC Wits 2018 (A)	2018-02-25	2018-02-25	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
19	South African Inter Regional Championships 2017	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	6	5.5	Yes	Analysis

#	Games	Start				End
1	10	Tournament 2018 Inter Region Chess Championships				Tournament 2019 National Club Chess Championships
		date 2018-12-22	rnd 3	type Standard	result 1	date 2019-09-28	rnd 2	type Standard	result 1
		Opponent Mlahleki, V (Vusimuzi)				Opponent Tom, T (Tony)
2	8	Tournament The Outpost Chess Club Open 2018				Tournament Chessnuts - Charterhouse Open 2018
		date 2018-03-16	rnd 1	type Standard	result 1	date 2018-05-11	rnd 2	type Standard	result 1
		Opponent Jairosi, IA (Isheunesu)				Opponent Chimbwanda, P (Panashe)
3	8	Tournament South African Inter Regional Championships 2017				Tournament JCC Wits 2018
		date 2018-01-09	rnd 1	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Mbedza, R (Richard)				Opponent Masiya, MA (Mfundo)

#	Games	Start				End
1	10	Tournament 2018 Inter Region Chess Championships				Tournament 2019 National Club Chess Championships
		date 2018-12-22	rnd 3	type Standard	result 1	date 2019-09-28	rnd 2	type Standard	result 1
		Opponent Mlahleki, V (Vusimuzi)				Opponent Tom, T (Tony)
2	8	Tournament The Outpost Chess Club Open 2018				Tournament Chessnuts - Charterhouse Open 2018
		date 2018-03-16	rnd 1	type Standard	result 1	date 2018-05-11	rnd 2	type Standard	result 1
		Opponent Jairosi, IA (Isheunesu)				Opponent Chimbwanda, P (Panashe)
3	8	Tournament South African Inter Regional Championships 2017				Tournament JCC Wits 2018
		date 2018-01-09	rnd 1	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Mbedza, R (Richard)				Opponent Masiya, MA (Mfundo)

#	Games	Start				End
1	2	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-20	rnd 9	type Rapid	result 0.5	date 2018-05-20	rnd 10	type Rapid	result 1
		Opponent Klaver, C (Cornelis)				Opponent Jurgensen, GI (Graham)
2	2	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 5	type Rapid	result 1	date 2018-05-19	rnd 6	type Rapid	result 1
		Opponent Lesole, P (Pudungwane)				Opponent Mthunzi, B (Brighton)
3	2	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 1	type Rapid	result 1	date 2018-05-19	rnd 2	type Rapid	result 1
		Opponent Basson, H (Heinrich)				Opponent Mbedza, R (Richard)

#	Games	Start				End
1	4	Tournament Chessheroes Bowls Club Zoo Lake Challenge 2022				Tournament Chessheroes Bowls Club Zoo Lake Challenge 2022
		date 2022-07-02	rnd 2	type Blitz	result 1	date 2022-07-02	rnd 5	type Blitz	result 1
		Opponent Lund, L (Leo)				Opponent Rabiul, B (Bhuiyan)
2	3	Tournament Chessheroes Bowls Club Zoo Lake Challenge 2022				Tournament FNB Chessheroes Anity Bullying 2022
		date 2022-07-02	rnd 7	type Blitz	result 0.5	date 2022-11-05	rnd 2	type Blitz	result 1
		Opponent Mthunzi, C (Clive)				Opponent Klaver, C (Cornelis)
3	3	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 4	type Blitz	result 1
		Opponent Sathish, A (Abinavah)				Opponent Manyama, BR (Ronald)

#	Games	Start				End
1	6	Tournament 2019 National Club Chess Championships				Tournament 2019 USSA Championships
		date 2019-09-28	rnd 4	type Standard	result 1	date 2019-12-03	rnd 3	type Standard	result 1
		Opponent Willenberg, SC (Shane)				Opponent Baloyi, S (Sipho)
2	6	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament 2018 USSA Championship
		date 2018-05-20	rnd 10	type Rapid	result 1	date 2018-07-04	rnd 5	type Standard	result 1
		Opponent Jurgensen, GI (Graham)				Opponent Willenberg, SC (Shane)
3	6	Tournament South African Inter Regional Championships 2017				Tournament JCC Wits 2018
		date 2018-01-10	rnd 3	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Hercules, BV (Benjamin)				Opponent Masiya, MA (Mfundo)

#	Games	Start				End
1	6	Tournament 2019 National Club Chess Championships				Tournament 2019 USSA Championships
		date 2019-09-28	rnd 4	type Standard	result 1	date 2019-12-03	rnd 3	type Standard	result 1
		Opponent Willenberg, SC (Shane)				Opponent Baloyi, S (Sipho)
2	6	Tournament Chessnuts - Charterhouse Open 2018				Tournament 2018 USSA Championship
		date 2018-05-12	rnd 6	type Standard	result 1	date 2018-07-04	rnd 5	type Standard	result 1
		Opponent Ngobeni, V (Vusi)				Opponent Willenberg, SC (Shane)
3	6	Tournament South African Inter Regional Championships 2017				Tournament JCC Wits 2018
		date 2018-01-10	rnd 3	type Standard	result 1	date 2018-02-25	rnd 2	type Standard	result 1
		Opponent Hercules, BV (Benjamin)				Opponent Masiya, MA (Mfundo)

#	Games	Start				End
1	2	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 5	type Rapid	result 1	date 2018-05-19	rnd 6	type Rapid	result 1
		Opponent Lesole, P (Pudungwane)				Opponent Mthunzi, B (Brighton)
2	2	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-19	rnd 1	type Rapid	result 1	date 2018-05-19	rnd 2	type Rapid	result 1
		Opponent Basson, H (Heinrich)				Opponent Mbedza, R (Richard)
3	1	Tournament SWVG Arnold Classic Rapid & Blitz 2018				Tournament SWVG Arnold Classic Rapid & Blitz 2018
		date 2018-05-20	rnd 10	type Rapid	result 1	date 2018-05-20	rnd 10	type Rapid	result 1
		Opponent Jurgensen, GI (Graham)				Opponent Jurgensen, GI (Graham)

#	Games	Start				End
1	4	Tournament Chessheroes Bowls Club Zoo Lake Challenge 2022				Tournament Chessheroes Bowls Club Zoo Lake Challenge 2022
		date 2022-07-02	rnd 2	type Blitz	result 1	date 2022-07-02	rnd 5	type Blitz	result 1
		Opponent Lund, L (Leo)				Opponent Rabiul, B (Bhuiyan)
2	3	Tournament Chessheroes Choo Choo Challenge 2022				Tournament Chessheroes Choo Choo Challenge 2022
		date 2022-01-08	rnd 2	type Blitz	result 1	date 2022-01-08	rnd 4	type Blitz	result 1
		Opponent Sathish, A (Abinavah)				Opponent Manyama, BR (Ronald)
3	2	Tournament FNB Chessheroes Anity Bullying 2022				Tournament FNB Chessheroes Anity Bullying 2022
		date 2022-11-05	rnd 4	type Blitz	result 1	date 2022-11-05	rnd 5	type Blitz	result 1
		Opponent Mpya, TM (Tshediso)				Opponent Hercules, BV (Benjamin)

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	Hercules ,BV (Benjamin Vincent)	4	3	212.5	3	2	141.7	0	0	0	1	1	425
1	Hercules ,BV (Benjamin Vincent)	4	2140.4	2352.9	3	2165.5	2282	0	0	0	1	2194.5	2565.4
2	Pon ,M (Matt)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Pon ,M (Matt)	3	2155.2	2013.5	3	2155.5	2013.5	0	0	0	0	0	0
3	Zwakala ,N (Ntando)	3	2.5	283.3	3	2.5	283.3	0	0	0	0	0	0
3	Zwakala ,N (Ntando)	3	2090.8	2374.1	3	2089.8	2374.1	0	0	0	0	0	0
4	Mbedza ,R (Richard)	3	2.5	283.3	2	1.5	212.5	1	1	425	0	0	0
4	Mbedza ,R (Richard)	3	1876.8	2160.1	2	1892.4	2089.3	1	1944.6	2301.8	0	0	0
5	Masiya ,MA (Mfundo)	3	1	-141.7	2	1	0	1	0	-425	0	0	0
5	Masiya ,MA (Mfundo)	3	1916.7	1775	2	1904.2	1916.7	1	1787.2	1491.7	0	0	0
6	Klaver ,C (Cornelis)	3	1.5	0	0	0	0	1	0.5	0	2	1	0
6	Klaver ,C (Cornelis)	3	2038.8	2038.8	0	0	0	1	2076.4	2038.8	2	1977.7	2038.8
7	Nkosi ,DJ (Dumisa Jacob)	2	1.5	212.5	2	1.5	212.5	0	0	0	0	0	0
7	Nkosi ,DJ (Dumisa Jacob)	2	1725.9	1938.4	2	1721.9	1938.4	0	0	0	0	0	0
8	Gluckman ,P (Paul)	2	2	425	2	2	425	0	0	0	0	0	0
8	Gluckman ,P (Paul)	2	2062.9	2487.9	2	2063.2	2487.9	0	0	0	0	0	0
9	Hempe ,LH (Lilitha Hlomla)	2	1	0	2	1	0	0	0	0	0	0	0
9	Hempe ,LH (Lilitha Hlomla)	2	1737.1	1737.1	2	1734.4	1737.1	0	0	0	0	0	0
10	Willenberg ,SC (Shane Clayton)	2	2	425	2	2	425	0	0	0	0	0	0
10	Willenberg ,SC (Shane Clayton)	2	1778.3	2203.3	2	1777.3	2203.3	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

De Abreu, RN (Roberto Nicolau)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms