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Sandro Mareco
S Mareco 
Photo credit: 
Number of games in database: 1,092
Years covered: 2001 to 2022
Last FIDE rating: 2629 (2562 rapid, 2546 blitz)
Highest rating achieved in database: 2664

Overall record: +478 -163 =357 (65.8%)*
   * Overall winning percentage = (wins+draws/2) / total games in the database. 94 exhibition games, blitz/rapid, odds games, etc. are excluded from this statistic.

With the White pieces:
 English (71) 
    A13 A14 A15 A16 A10
 King's Indian (53) 
    E94 E63 E92 E98 E91
 Sicilian (49) 
    B90 B51 B44 B27 B42
 Slav (27) 
    D17 D15 D11 D10 D18
 English, 1 c4 e5 (25) 
    A25 A20 A22 A29 A28
 Reti System (24) 
    A04 A06
With the Black pieces:
 Sicilian (141) 
    B90 B51 B94 B23 B22
 Nimzo Indian (59) 
    E32 E21 E20 E46 E53
 Sicilian Najdorf (39) 
    B90 B94 B92 B91 B93
 Queen's Pawn Game (36) 
    A45 A46 E10 D02 A50
 Queen's Indian (34) 
    E15 E12 E17
 English (32) 
    A13 A17 A15 A14
Repertoire Explorer

NOTABLE GAMES: [what is this?]
   S Mareco vs Nedev, 2014 1-0
   S Mareco vs Nakamura, 2017 1-0
   S Mareco vs Nakamura, 2016 1/2-1/2
   S Mareco vs A Zhigalko, 2011 1-0
   S Mareco vs E Hansen, 2012 1-0
   E Cordova vs S Mareco, 2022 0-1
   S Mareco vs H S Gretarsson, 2016 1-0
   J van Foreest vs S Mareco, 2016 0-1
   E Garcia vs S Mareco, 2008 0-1
   S Mareco vs S Sjugirov, 2019 1/2-1/2

NOTABLE TOURNAMENTS: [what is this?]
   VIII Iberoamerican Championship Mexico (2022)
   1st Panno Masters (2012)
   American Continental (2018)
   Antonio Rocha Memorial (2011)
   Sharjah Masters (2019)
   HD Bank Cup (2017)
   Sharjah Masters (2018)
   Dubai Open (2017)
   Hasselbacken Open (2016)
   Dubai Open (2019)
   Baku Olympiad (2016)
   Gibraltar Masters (2014)
   Tromso Olympiad (2014)
   Gibraltar Masters (2015)
   World Cup (2021)

   🏆 55th Capablanca Mem Elite
   S Mareco vs O Almeida Quintana (Apr-20-22) 1-0
   C Albornoz Cabrera vs S Mareco (Apr-19-22) 0-1
   S Mareco vs O Almeida Quintana (Feb-19-22) 1-0
   G Vazquez vs S Mareco (Feb-18-22) 1/2-1/2
   S Mareco vs J Santos Latasa (Feb-17-22) 1/2-1/2

Search Sacrifice Explorer for Sandro Mareco
Search Google for Sandro Mareco
FIDE player card for Sandro Mareco

(born May-13-1987, 35 years old) Argentina

[what is this?]

International Master (2007); Grandmaster (2010); South American Junior Champion (2007); Argentine Champion (2015); American Continental Champion (2015); Argentine Blitz Champion (2015).


Mareco was born in Buenos Aires and is frequently the first amongst equals amongst Argentina's top players. He is extremely active in tournaments, playing the majority of his events in South America, especially in Argentina and Brazil, although he has been playing more frequently in Europe since 2012.

Master norms

He gained his IM title and his first Grandmaster (GM) norm when he won the South American Junior Championship in 2007. His second GM norm came when he scoring 6.5/9 (placing =1st) at the 8th Mario Covas Cup (2008) in Brazil. In January 2010, he gained his 3rd GM norm when he scored 8.5/13 (placing =4th) at the Vanderley Cason de Melo Memorial Tournament in Brazil, gaining his GM title immediately as his rating was already over 2500.


<Youth> =3rd at the 2002 U16 Argentinian Championship.

<Junior> Mareco scored 7.5/13 at the World Junior Championship in Yerevan in 2006, was runner-up in the Argentinian Junior Championship in 2007 and won the South American Junior Championship in 2007.

<National> He came =1st (2nd on count back) in the 2012 Argentine Championships to qualify to play on the national team at the 2012 Istanbul Olympiad. In 2015, he won the national championship outright for the first time.

<Continental> 6.5/11 at the 2005 American Continental Championship, 8/11 at the 2009 American Continental Championship. Won the American Continental Championship in 2015.

<World> Mareco's first participation in the world championship cycle came in March 2007 when he contested Zonal 2.5 in Argentina, although on that occasion he did not qualify for the World Cup. He did however qualify through the Zonal 2.5 championships in later years to play in the World Cup (2011) and the World Cup (2013), where he lost in the first round to Ferenc Berkes in the former, and to David Navara, respectively in the latter, therefore being eliminated from both World Cups at that stage.

By winning the American Continental Championship 2015, Mareco qualified to compete in the World Cup (2015) where he staged one of the upsets of the first round to defeat Ni Hua to progress to the second round. However he was eliminated from the event when he lost his second round match to Canadian GM Anton Kovalyov.


<2002-2007> =1st at the IRT Schuster Memorial in 2002, 2ndd at the IRT Ciudad de Moron in Argentina in 2004, 1st with 9/9 at the Superior Club Argentino in 2007 and =4th at the Arnoldo Ellerman Open in 2007.

<2008> 1st at the 58th Verano Ballester - J.Maciel tournament in Argentina, =1st at the VIII Mario Covas Cup; =2nd at the City of Pergamino International, won the II ITT 54th Anniversary Villa Martelli tournament in Argentina, =3rd at the XII Magistral de la Republica, =3rd at the 15th PROAM Open Tournament.

<2009> Won the 59 Abierto de Villa Ballester - Argentina with 8/9 and the ITT Instituto de Engenharia do Parana - IEP - Brazil with 7.5/10, =4th at the 84 Semifinal Argentina Superior, qualifying for the 84 Final Argentina Superior Absoluta where he placed =3rd. =5th at the Simon Bolivar Cup, =2nd at the VIII Aberto Internacional de Registro - Copa SABESP - Brazil, 3rd at the Magistral Internacional Duchamp behind Jorge Cori and Federico Perez Ponsa.

<2010> =4th at the Memorial Vanderley Cason de Melo behind Felipe de Cresce El Debs, Everaldo Matsuura and Alexandr Hilario Takeda dos Santos Fier =1st with 6/7 at the Aberto do Brasil Etapa Shopping Sao Jose dos Pinhais - Brazil; 1st with 8.5/9, 2 points clear of the field, at the III Simon Bolivar Libertador Copa PDVSur; 2nd in the São José dos Pinhais Open; won the XIV Magistral de la Republica Argentina (1.5 points clear of the field) and the IX Mario Covas Memorial Tournament (Brazil), 2 points clear of Gilberto Milos, Rafael Duailibe Leitao and Andres Rodriguez Vila. He also won the Aberto Internacional de Xadrez Itaipu Binacional with 5.5/6 and was =1st alongside Diego Flores with 7/9 at the category 12 Marcel Duchamps Masters Tournament.

<2011> Outright winner at the IV Abierto Simon Bolivar PDVSur ahead of equal second-placed Jorge Cori, Ernesto Real de Azua, Horacio Saldano Dayer and Damian Lemos. Outright winner of the Pindamonhangaba Open Brazil, the Governor Mario Covas International and the Absolute Paulista Championship 2011, all of which were played in Brazil.

<2012> =1st alongside El Debs at the open tournament in Brazil celebrating the 160th Anniversary of the city of Sao Jose do Rio Preto. 2nd at the 6-player DRR Osasco Masters 50 Years invitational, =3rd behind Alexey Shirov and Felgaer at the Buenos Aires Masters Tournament, =1st with Flores and Real De Azua at the Panno Masters played at the Club Phillidor in the city of Moron, Argentina, =6th, half a point behind the leaders, at the Continental Tournament of the Americas staged in Mar del Plata and =1st alongside Flores at the 5th Legislature of the City of Buenos Aires Tournament.

<2013> Outright first with 7/9 at the IPD Masters Tournament in Lima Peru; =6th, half point from the co-leaders at the Albena Open in Bulgaria; =2nd, a point behind the winner Krikor Sevag Mekhitarian at the 7th International Open at the Chess Festival in Varna, Bulgaria; outright winner at the 3rd Brazil City Maringa open, ahead of equal second placed Neuris Delgado Ramirez, Mekhitarian, Axel Bachmann Schiavo and Everaldo Matsuura 7/11 at the 3rd Indonesian Open, half a point from the shared lead; =2nd with 7/9 behind Bachmann at the 2013 Norberto La Porta Cup.

<2014> =1st at the II Aberto do Brasil - Copa Cidade de Vitori, first at the Marcel Duchamp Open in Mar del Plata, finishing the year with 8.5/9 and outright first at the Abierto Legislatura Ciudad de Bs. As. Copa N. La Porta.

<2015> =2nd behind Julio Ernesto Granda Zuniga at the Zicosur Tournament of South American Integration held in Antofagasta in Chile and =1st alongside Flores at the Arica International Tournament also held in Chile. =3rd at the FAOGBA International Open in Argentina behind Eduardo Patricio Iturrizaga Bonelli and Alan Pichot. =1st with Delgado at the 8th Hebrew Masters in Sao Paolo. He won the VI Magistral Yael - Torre Blanca in Argentina outright with 6/9.


Mareco played board for Argentina at the Chess Olympiad (2012) in Istanbul and board two for his country at the Chess Olympiad (2014). During the two Olympiads he played 19 game for a +6 =11 -2 result (60.5%).


Mareco was clear first in the National Intergenerational League in May 2015 and won the Argentine Blitz Championship 2015 in November 2015. (1)


Mareco's rating peak was 2628 in January 2011.


Photo: ICC: peluvarius

Wikipedia article: Sandro Mareco

(1) , (2) (podcast interview Ben Johnson in June 2017).

Last updated: 2017-06-13 13:47:38

 page 1 of 44; games 1-25 of 1,100  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. E Contessotto vs S Mareco  1-0312001CEFA IRT-4C53 Giuoco Piano
2. S Mareco vs M Haitshandiet  0-1322001CEFA IRT 4thC41 Philidor Defense
3. C Cabral vs S Mareco  0-1392001CEFA IRT 4thD30 Queen's Gambit Declined
4. S Mareco vs P Barrionuevo  1-0222001CEFA IRT 4thC41 Philidor Defense
5. L Ucha vs S Mareco  1-0662001CEFA IRT 4thC83 Ruy Lopez, Open
6. Sergio Luis Medina Fontes vs S Mareco  1-0352001CEFA IRT 4thD35 Queen's Gambit Declined
7. S Piccirilli vs S Mareco  0-1392001CEFA IRT 4thD50 Queen's Gambit Declined
8. S Mareco vs R Cabrera Pando  0-1482001CEFA IRT 4thC43 Petrov, Modern Attack
9. S Mareco vs P Borzone  0-1272001FAOGBA-ch sf SuperiorB76 Sicilian, Dragon, Yugoslav Attack
10. Jorge Totaro vs S Mareco  0-1472001FAOGBA-ch sf SuperiorE60 King's Indian Defense
11. S Mareco vs Luis Veron  0-1372001FAOGBA-ch sf SuperiorB90 Sicilian, Najdorf
12. Martin Ruiz vs S Mareco  ½-½512001FAOGBA-ch sf SuperiorB50 Sicilian
13. Cosme Rodriguez vs S Mareco  0-1342001FAOGBA-ch sf SuperiorC44 King's Pawn Game
14. S Mareco vs R Cabrera Pando  ½-½562001FAOGBA-ch sf SuperiorC26 Vienna
15. S Mareco vs J A Palmisano  1-0312001FAOGBA-ch fin SuperiorC18 French, Winawer
16. S Mareco vs A Patino  ½-½202001FAOGBA-ch fin SuperiorB84 Sicilian, Scheveningen
17. E Real de Azua vs S Mareco  1-0442001FAOGBA-ch fin SuperiorB12 Caro-Kann Defense
18. S Mareco vs Leonardo Manrique  0-1242001FAOGBA-ch fin SuperiorB00 Uncommon King's Pawn Opening
19. Gustavo Medina vs S Mareco  0-1862001FAOGBA-ch fin SuperiorE61 King's Indian
20. S Mareco vs P Barrionuevo  1-0212001FAOGBA-ch fin SuperiorB84 Sicilian, Scheveningen
21. S Mareco vs Santiago Fernandez  1-0572001Buenos Aires Najdorf op U14B01 Scandinavian
22. Nicolas Urriza vs S Mareco  0-1402001Buenos Aires Najdorf op U14D31 Queen's Gambit Declined
23. S Mareco vs G Needleman  1-0412001Buenos Aires Najdorf op U14B44 Sicilian
24. S Mareco vs L Duarte  0-1302001Buenos Aires Najdorf op U14B44 Sicilian
25. Diego Friedheim vs S Mareco  0-1242001Buenos Aires Najdorf op U14A06 Reti Opening
 page 1 of 44; games 1-25 of 1,100  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Mareco wins | Mareco loses  

Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Premium Chessgames Member
  Tabanus: Winner of the XIV Magistral de la Republica Argentina 4-12 August 2010:

Premium Chessgames Member
  Tabanus: And winner of the IX Mario Covas Jr GM (Brazil) 13-19 August 2010:

Oct-18-11  mysql: He is the enemy of Barbosa in Round 8 of the Indonesia Open.

Oct-18-11  Wrong: Maybe "opponent" would be more appropriate.
Oct-19-11  mysql: Enemy is a synonym of opponent right?
Sep-09-12  Alphastar: An opponent is someone who happens to be another participant in a contest. An enemy is someone you wish something bad would happen to.

GM Maresco had a bushy head at the Olympiad.

Nov-08-12  Gottschalk: Sandro Mareco won the first Panno masters, sharing the first place with Diego Flores and Ernesto Real de Azua. Information and games
Premium Chessgames Member
  Penguincw: Congrats to Sandro Mareco for winning the American Continental Championship with 8.5/11, edging out Yuniesky Quesada Perez on tiebreaks 75.5-73.5. It was a long tournament, but he had 2 3-game winning streaks, both of them ending by beating Cori (Deysi Estela Cori Tello in R3 and Jorge Cori in R10 with black).

He also gains 12 rating points and is now at 2593, as he attempts to return to the 2600 club.

Jun-01-15  Yopo: Montevideo, Uruguay
Sandro is the new American Continental Champion. He won the Open with 8.5/11.0 points(sharing the 1st place with Yuniesky Quesada Perez)

PGN games can dowloaded here.Open and tiebreak=desempates

Sep-07-15  diagonal: Congrats to GM Mareco! Another report from the 10th American Continental Chess Championship 2015:

Sandro Mareco is at the moment (as of mid-2015) the highest rated chess player of his country, as mentioned above with an ELO of plus / minus 2600, meaning actually that Argentina has no Top Hundred player in the year, legendary Oscar Panno, the first Argentine born GM, is celebrating his 80th birthday *those were the days*

Sep-12-15  epistle: Ni Hua may be on his way to SM.
Dec-29-16  ketchuplover: drawn goes nakamura!
Feb-15-17  waustad: At present he is waiting to play the 9th round of the COPA MARCEL DUCHAMP. So far, he is 8/8.
Feb-15-17  detritus: He just finished his 9/9 run in this tournament:

He's moved up to #90 in the live ratings list.

Feb-16-17  sonia91: Congrats to Mareco on winning the Marcel Duchamp Cup with 9/9!
Feb-18-17  Imran Iskandar: Wow, amazing 9/9!
Oct-12-17  diagonal: After that success with a clean score at the Duchamp Cup (Open), Sandro Mareco was ranked for the first time in the Top-100 of the official FIDE Elo rating list (March 2017). He is the leading Argentine chess player.

Some recent videos with GM Mareco:

Jul-07-18  offramp: He is the only chess player in history whose first and last names both end in <o>.
Jul-07-18  PhilFeeley: < offramp: He is the only chess player in history whose first and last names both end in <o>.>

Of course, not true:
Horatio Caro

Jul-07-18  nok: Paco Vallejo, Miso Cebalo

Not sure about Cristiano Ronaldo.

Jul-07-18  WorstPlayerEver: What about Horatio Caro?
Premium Chessgames Member
  OhioChessFan: A.O. Goldsbo
Premium Chessgames Member
  Penguincw: Mareco won the HDBank International chess Tournament in 2018, and he is back to defend his title.

Feb-24-22  Albertan: Sandro Mareco wins Ibéro-American Championship in Mexico:

Apr-21-22  Albertan: Sandro Mareco victorious at Mexico Open:


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