Player Page

De Abreu, RN (Roberto)
Dob: 1996/11/29 (Adult)
Gender: Male
Chess SA id: 196006193
FIDE id:
Region: Johannesburg Metro (GJM)
Citizen: RSA
Title(s): FM
Last active: 2022/11/05 (627 days ago)
Ratings
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2249.3
Current Weighted rating2217.4
Current Weighted performance1193.0
Current official/published rating (highest between Raw, WR and WP)2249.3
Current highest rating achieved2249.3
Current floor (min rating allowed)1749.3
Current K-factor16
Games played this month-4
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±37.2
Current Raw change used (final)0.0
Projected new Raw rating2249.3
Projected new Weighed rating2041.0
Projected new Weighted performance1193.0
Projected new final Raw rating (if new WP > new Raw)2249.3
Projected new highest rating2249.3
Projected new floor1749.3
Projected new K-facor16
Projected new official/published rating (highest between new Raw, new WR and new WP)2249.3
Projected effective change (new Official - current Official)=0.0
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2266.4
Current Weighted rating2234.2
Current Weighted performance969.1
Current official/published rating (highest between Raw, WR and WP)2266.4
Current highest rating achieved2266.4
Current floor (min rating allowed)1766.4
Current K-factor16
Games played this month-4
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±36.3
Current Raw change used (final)0.0
Projected new Raw rating2266.4
Projected new Weighed rating2056.4
Projected new Weighted performance969.1
Projected new final Raw rating (if new WP > new Raw)2266.4
Projected new highest rating2266.4
Projected new floor1766.4
Projected new K-facor16
Projected new official/published rating (highest between new Raw, new WR and new WP)2266.4
Projected effective change (new Official - current Official)=0.0
s
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2143.6
Current Weighted rating2143.6
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)2143.6
Current highest rating achieved2143.6
Current floor (min rating allowed)1643.6
Current K-factor20
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±43.2
Current Raw change used (final)0.0
Projected new Raw rating2143.6
Projected new Weighed rating1972.1
Projected new Weighted performance156.7
Projected new final Raw rating (if new WP > new Raw)2143.6
Projected new highest rating2143.6
Projected new floor1643.6
Projected new K-facor20
Projected new official/published rating (highest between new Raw, new WR and new WP)2143.6
Projected effective change (new Official - current Official)=0.0
Raw rating=Current rating, Weighted rating (WR)=Weighted average of current/new Raw rating + last 23 published Raw ratings), Weighted performance (WP)=Weighted average of last 5 tournaments
Current Raw rating2088.0
Current Weighted rating2087.8
Current Weighted performance
Current official/published rating (highest between Raw, WR and WP)2088.0
Current highest rating achieved2114.4
Current floor (min rating allowed)1614.4
Current K-factor20
Games played this month0
Score (S)0.0
Expected score (We)0.00
Difference (S-We)0.00
Current Raw change (no limits, including tournament time weight)0.0
Current min/max change allowed (with limits)±46.8
Current Raw change used (final)0.0
Projected new Raw rating2088.0
Projected new Weighed rating1920.8
Projected new Weighted performance1113.0
Projected new final Raw rating (if new WP > new Raw)2088.0
Projected new highest rating2114.4
Projected new floor1614.4
Projected new K-facor20
Projected new official/published rating (highest between new Raw, new WR and new WP)2088.0
Projected effective change (new Official - current Official)=0.0
Tournaments
Did not participate this month.
Did not participate this year.
#TournamentStartEndHostTypeTimeWeightRoundsGamesScoreMainTypeAnalysis
19 FNB Chessheroes Anity Bullying 2022 (Blitz) 2022/11/05 2022/11/05 Johannesburg Metro (GJM) Blitz 8 0.25 7 7 5.0 2186.4 2075.8 Analysis
18 Chessheroes Bowls Club Zoo Lake Challenge 2022 2022/07/02 2022/07/02 Johannesburg Metro (GJM) Blitz 9 0.27 7 7 4.5 2195.0 2114.4 Analysis
17 Chessheroes Choo Choo Challenge 2022 2022/01/08 2022/01/08 Tshwane (GTP) Blitz 8 0.25 7 7 5.0 2202.6 2148.4 Analysis
16 Prague International Chess Festival 2020 2020/02/14 2020/02/22 Czech Republic (CZE) Standard 150 1.00 9 8 4.5 2211.6 2212.2 Analysis
15 Gibraltar International Chess Festival - Challengers B 2020 2020/01/25 2020/01/29 England (ENG) Standard 120 1.00 5 5 4.0 2093.8 2089.6 Analysis
14 Gibraltar International Chess Festival Masters 2020 2020/01/21 2020/01/30 England (ENG) Standard 195 1.00 10 10 4.0 2093.8 2089.6 Analysis
13 Gibraltar International Chess Festival - Challengers A 2020 2020/01/20 2020/01/24 England (ENG) Standard 120 1.00 5 5 4.5 2093.8 2089.6 Analysis
12 2019 Inter Region Chess Championships 2020/01/09 2020/01/12 4 Knights (4K) Standard 120 1.00 7 7 4.5 2093.8 2089.6 Analysis
11 2019 South African Closed Chess Championships (Open A) 2019/12/07 2019/12/17 Cape Town (WCT) Standard 150 1.00 11 11 6.0 2117.8 2116.4 Analysis
10 2019 USSA Championships (Open) 2019/12/02 2019/12/06 Sarah Baartman (ESB) Standard 90 0.94 9 9 6.0 2117.8 2116.4 Analysis
9 2019 National Club Chess Championships (A) 2019/09/27 2019/09/29 Cape Town (WCT) Standard 120 1.00 6 5 4.0 2118.8 2116.0 Analysis
8 JNW Club - Helpmekaar Kollege Open 2019 (A) 2019/07/06 2019/07/06 Johannesburg Metro (GJM) Standard 60 0.83 5 5 4.0 2109.8 2104.0 Analysis
7 2018 Inter Region Chess Championships 2018/12/21 2018/12/24 4 Knights (4K) Standard 120 1.00 7 6 4.0 2116.6 2111.4 Analysis
6 2018 USSA Championship (Open) 2018/07/02 2018/07/06 Gert Sibande (MGS) Standard 90 0.94 9 9 7.0 2121.3 2116.4 Analysis
5 SWVG Arnold Classic Rapid & Blitz 2018 (Rapid Prestige) 2018/05/19 2018/05/20 Tshwane (GTP) Rapid 35 0.66 10 10 5.5 2146.7 2148.4 Analysis
4 Chessnuts - Charterhouse Open 2018 (A) 2018/05/11 2018/05/12 Johannesburg Metro (GJM) Standard 62 0.84 6 6 4.0 2146.7 2141.8 Analysis
3 The Outpost Chess Club Open 2018 (A) 2018/03/16 2018/03/17 Johannesburg Metro (GJM) Standard 62 0.84 6 6 4.5 2146.7 2140.8 Analysis
2 JCC Wits 2018 (A) 2018/02/25 2018/02/25 Johannesburg Metro (GJM) Standard 62 0.84 5 5 2.0 2177.4 2177.4 Analysis
1 South African Inter Regional Championships 2017 2018/01/09 2018/01/12 4 Knights (4K) Standard 120 1.00 7 6 5.5 2148.4 2148.4 Analysis
Game History
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Standard All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Rapid All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Blitz All 0 0 0 0 0.0 0.0 0.0 0.0 0.0
White 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Black 0 0 0 0 0.0 0.0 0.0 0.0 0.0
Colour Games Wins Draws Losses Score % Dp Aor Perform
Main All 134 78 21 35 88.5 66.0 136.4 1899.2 2035.6
White 65 39 8 18 43.0 66.2 137.3 1877.3 2014.6
Black 69 39 13 17 45.5 65.9 135.5 1919.8 2055.3
Standard All 103 59 19 25 68.5 66.5 140.3 1936.0 2076.3
White 49 28 7 14 31.5 64.3 121.4 1911.9 2033.3
Black 54 31 12 11 37.0 68.5 157.4 1957.9 2115.3
Rapid All 10 5 1 4 5.5 55.0 42.5 2028.1 2070.6
White 5 3 0 2 3.0 60.0 85.0 2137.3 2222.3
Black 5 2 1 2 2.5 50.0 0.0 1918.8 1918.8
Blitz All 21 14 1 6 14.5 69.0 161.9 1657.3 1819.2
White 11 8 1 2 8.5 77.3 231.8 1605.2 1837.0
Black 10 6 0 4 6.0 60.0 85.0 1714.5 1799.5
Top 20 opponents most often played
#Chess SA idNameGamesScoreWinsDrawsLosses%AorDpPerformView
1 191012376 Hercules, BV (Benjamin) 4 3.0 3 0 1 75.0 2136.6 212.5 2349.1 View list
2 173022117 Mbedza, R (Richard) 3 2.5 2 1 0 83.3 2129.6 283.3 2413.0 View list
3 192043627 Zwakala, N (Ntando) 3 2.5 2 1 0 83.3 2135.0 283.3 2418.3 View list
4 181015759 Klaver, C (Cornelis) 3 1.5 1 1 1 50.0 2176.0 0.0 2176.0 View list
5 199021497 Masiya, MA (Mfundo) 3 1.0 1 0 2 33.3 2148.5 -141.7 2006.8 View list
6 196030519 Pon, M (Matt) 3 1.0 0 2 1 33.3 2147.3 -141.7 2005.6 View list
7 102010594 Gluckman, P (Paul) 2 2.0 2 0 0 100.0 2118.3 425.0 2543.3 View list
8 187025727 Mpya, TM (Tshediso) 2 2.0 2 0 0 100.0 2151.5 425.0 2576.5 View list
9 182025885 Mthunzi, B (Brighton) 2 2.0 2 0 0 100.0 2128.3 425.0 2553.3 View list
10 193042920 Willenberg, SC (Shane) 2 2.0 2 0 0 100.0 2120.1 425.0 2545.1 View list
11 Adewole Adeyinka 2 2.0 0 0 0 100.0 2093.8 425.0 2518.8 View list
12 182027949 Nkosi, DJ (Dumisa) 2 1.5 1 1 0 75.0 2105.2 212.5 2317.7 View list
13 199012211 Hempe, LH (Lilitha) 2 1.0 1 0 1 50.0 2118.3 0.0 2118.3 View list
14 101015487 Khumalo, KB (Keith) 2 0.5 0 1 1 25.0 2152.1 -212.5 1939.6 View list
15 195011466 Grover, S (Sahaj) 2 0.0 0 0 2 0.0 2134.0 -425.0 1709.0 View list
16 187019959 Makoto, R (Rodwell) 2 0.0 0 0 2 0.0 2146.7 -425.0 1721.7 View list
17 103004868 Claassen, J (Jean-Daniel) 1 1.0 1 0 0 100.0 2116.6 425.0 2541.6 View list
18 194002188 Bhawoodien, MO (Mohamed) 1 1.0 1 0 0 100.0 2117.8 425.0 2542.8 View list
19 207069536 Boshoma, C (Chisomo) 1 1.0 1 0 0 100.0 2093.8 425.0 2518.8 View list
20 1990095940 Chimbwanda, P (Panashe) 1 1.0 1 0 0 100.0 2146.7 425.0 2571.7 View list