| 6 abr 2021 | Elissalt Cardenas, Hector 2286 | 1-0 | Martinez Martinez, Javier II 1585 | D91 Grünfeld Defense: Three Knights Variation, Petrosian System | 1 · mesa 1 |
| 6 abr 2021 | Villodre Miranda, Juan Alonso 1572 | 0-1 | Barez Menendez, Hector 2103 | A13 English Opening: Agincourt Defense | 1 · mesa 2 |
| 6 abr 2021 | Gonzalez Rivera, Eduardo 2017 | 1-0 | Ghavami, Mahmoud 1552 | B01 Scandinavian Defense: Modern Variation, Gipslis Variation | 1 · mesa 3 |
| 6 abr 2021 | Martinez Miura, Enrique 1547 | 1-0 | Cabanas Bravo, Juan Andres 1971 | C60 Ruy Lopez | 1 · mesa 4 |
| 6 abr 2021 | Luque Ibanes, Manuel 1949 | 1-0 | Salgado Duarte, Pablo 1472 | C41 Philidor Defense: Exchange Variation | 1 · mesa 5 |
| 6 abr 2021 | Ramos Antona, Enrique 1471 | 0-1 | Marin Lopez, Jeronimo 1899 | A04 Zukertort Opening: Pirc Invitation | 1 · mesa 6 |
| 6 abr 2021 | Garcia Martin, Esteban 1891 | 1-0 | Menendez Domens, Juan Manuel 1467 | A34 English Opening: Symmetrical Variation, Normal Variation | 1 · mesa 7 |
| 6 abr 2021 | Penas Merino, Ramona 1434 | 1-0 | Vukotic Jovsic, Dragan 1873 | D00 Queen's Pawn Game: Accelerated London System | 1 · mesa 8 |
| 6 abr 2021 | Fiz Criado, Fidel 1863 | 1-0 | Martin Garcia, Francisco Javier 1428 | B21 Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation | 1 · mesa 9 |
| 6 abr 2021 | Infante Martin, Alonso 1404 | 0-1 | Martin Garcia, Luis I 1831 | D08 Queen's Gambit Declined: Albin Countergambit, Normal Line | 1 · mesa 10 |
| 6 abr 2021 | Barahona Torrijos, Angel 1817 | 1-0 | Carrillo Castano, Javier 1392 | B10 Caro-Kann Defense: Goldman Variation | 1 · mesa 11 |
| 6 abr 2021 | Suarez Mencia, Roberto 1364 | 0-1 | Fernandez Garcia, Ignacio 1801 | A20 English Opening: King's English Variation | 1 · mesa 12 |
| 6 abr 2021 | Pashov, Spas Nikolov 1777 | 0-1 | Perales Hernandez, Manuel 1337 | C44 Ponziani Opening | 1 · mesa 13 |
| 6 abr 2021 | Plaza Plaza, Prudencio 1265 | 0-1 | Garcia Sanz, Eduardo 1777 | D00 Queen's Pawn Game: Accelerated London System | 1 · mesa 14 |
| 6 abr 2021 | Perez Pascual, Arturo 1742 | 1-0 | Millan Tabuenca, Agustin 1136 | B27 Sicilian Defense: Hyperaccelerated Dragon | 1 · mesa 15 |
| 6 abr 2021 | Garcia Granja, Jose 1041 | 0-1 | De Luna Butz, Alberto 1689 | A13 English Opening: Agincourt Defense | 1 · mesa 16 |
| 6 abr 2021 | Urena Castellanos, Antonio 1621 | 0-1 | Garcia Santiago, Juan Carlos | A57 Benko Gambit | 1 · mesa 17 |
| 6 abr 2021 | Marin Aso, Jose Luis 1910 | 0-1 | BYE | | 1 · mesa 18 |
| 7 abr 2021 | Fernandez Garcia, Ignacio 1801 | ½-½ | Elissalt Cardenas, Hector 2286 | B00 Lion Defense: Lion's Jaw | 2 · mesa 1 |
| 7 abr 2021 | Barez Menendez, Hector 2103 | 1-0 | Barahona Torrijos, Angel 1817 | D38 Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | 2 · mesa 2 |
| 7 abr 2021 | Garcia Sanz, Eduardo 1777 | 0-1 | Gonzalez Rivera, Eduardo 2017 | A20 English Opening: King's English Variation | 2 · mesa 3 |
| 7 abr 2021 | De Luna Butz, Alberto 1689 | ½-½ | Luque Ibanes, Manuel 1949 | A15 English Orangutan | 2 · mesa 4 |
| 7 abr 2021 | Marin Lopez, Jeronimo 1899 | 1-0 | Perez Pascual, Arturo 1742 | C42 Petrov's Defense: Classical Attack, Staunton Variation | 2 · mesa 5 |
| 7 abr 2021 | Perales Hernandez, Manuel 1337 | 0-1 | Garcia Martin, Esteban 1891 | B50 Sicilian Defense: Modern Variations | 2 · mesa 6 |
| 7 abr 2021 | Garcia Santiago, Juan Carlos | 1-0 | Fiz Criado, Fidel 1863 | C11 French Defense: Classical Variation, Shirov-Anand Variation | 2 · mesa 7 |
| 7 abr 2021 | Martin Garcia, Luis I 1831 | 1-0 | Martinez Miura, Enrique 1547 | C10 French Defense: Rubinstein Variation, Blackburne Defense | 2 · mesa 8 |
| 7 abr 2021 | Cabanas Bravo, Juan Andres 1971 | 1-0 | Penas Merino, Ramona 1434 | C06 French Defense: Tarrasch Variation, Closed Variation, Main Line | 2 · mesa 9 |
| 7 abr 2021 | Marin Aso, Jose Luis 1910 | 1-0 | Ramos Antona, Enrique 1471 | C42 Petrov's Defense: Classical Attack, Chigorin Variation | 2 · mesa 10 |
| 7 abr 2021 | Vukotic Jovsic, Dragan 1873 | 1-0 | Infante Martin, Alonso 1404 | A45 Indian Defense: Accelerated London System | 2 · mesa 11 |
| 7 abr 2021 | Martin Garcia, Francisco Javier 1428 | 0-1 | Pashov, Spas Nikolov 1777 | D77 Neo-Grünfeld Defense: Classical Variation, Modern Defense | 2 · mesa 12 |
| 7 abr 2021 | Carrillo Castano, Javier 1392 | 1-0 | Urena Castellanos, Antonio 1621 | B30 Sicilian Defense: Old Sicilian | 2 · mesa 13 |
| 7 abr 2021 | Martinez Martinez, Javier II 1585 | 1-0 | Suarez Mencia, Roberto 1364 | E62 King's Indian Defense: Fianchetto Variation, Delayed Fianchetto | 2 · mesa 14 |
| 7 abr 2021 | Millan Tabuenca, Agustin 1136 | 1-0 | Villodre Miranda, Juan Alonso 1572 | A36 English Opening: Symmetrical Variation, Botvinnik System Reversed, with e3 | 2 · mesa 15 |
| 7 abr 2021 | Ghavami, Mahmoud 1552 | 1-0 | Plaza Plaza, Prudencio 1265 | A15 English Opening: Anglo-Indian Defense | 2 · mesa 16 |
| 7 abr 2021 | Salgado Duarte, Pablo 1472 | 1-0 | Garcia Granja, Jose 1041 | E14 Queen's Indian Defense, with e3 | 2 · mesa 17 |
| 7 abr 2021 | Menendez Domens, Juan Manuel 1467 | 0-1 | BYE | | 2 · mesa 18 |
| 8 abr 2021 | Garcia Martin, Esteban 1891 | 0-1 | Barez Menendez, Hector 2103 | A13 English Opening: Agincourt Defense | 3 · mesa 1 |
| 8 abr 2021 | Gonzalez Rivera, Eduardo 2017 | ½-½ | Martin Garcia, Luis I 1831 | C10 French Defense: Rubinstein Variation, Blackburne Defense | 3 · mesa 2 |
| 8 abr 2021 | Garcia Santiago, Juan Carlos | 0-1 | Marin Lopez, Jeronimo 1899 | B00 Pirc Defense | 3 · mesa 3 |
| 8 abr 2021 | Elissalt Cardenas, Hector 2286 | ½-½ | De Luna Butz, Alberto 1689 | D53 Queen's Gambit Declined | 3 · mesa 4 |
| 8 abr 2021 | Luque Ibanes, Manuel 1949 | ½-½ | Fernandez Garcia, Ignacio 1801 | D02 Queen's Pawn Game: Chigorin Variation | 3 · mesa 5 |
| 8 abr 2021 | Martinez Martinez, Javier II 1585 | 0-1 | Cabanas Bravo, Juan Andres 1971 | D94 Grünfeld Defense: Three Knights Variation, Burille Variation | 3 · mesa 6 |
| 8 abr 2021 | Ghavami, Mahmoud 1552 | 0-1 | Marin Aso, Jose Luis 1910 | A22 English Opening: King's English Variation, Two Knights Variation, Reversed Dragon | 3 · mesa 7 |
| 8 abr 2021 | Martinez Miura, Enrique 1547 | 0-1 | Vukotic Jovsic, Dragan 1873 | B41 Sicilian Defense: Kan Variation | 3 · mesa 8 |
| 8 abr 2021 | Fiz Criado, Fidel 1863 | 1-0 | Salgado Duarte, Pablo 1472 | D00 Blackmar-Diemer Gambit Declined: Lamb Defense | 3 · mesa 9 |
| 8 abr 2021 | Barahona Torrijos, Angel 1817 | 1-0 | Perales Hernandez, Manuel 1337 | C46 Three Knights Opening | 3 · mesa 10 |
| 8 abr 2021 | Pashov, Spas Nikolov 1777 | 1-0 | Carrillo Castano, Javier 1392 | B14 Caro-Kann Defense: Panov Attack | 3 · mesa 11 |
| 8 abr 2021 | Penas Merino, Ramona 1434 | 0-1 | Garcia Sanz, Eduardo 1777 | D00 Queen's Pawn Game: Accelerated London System | 3 · mesa 12 |
| 8 abr 2021 | Urena Castellanos, Antonio 1621 | 0-1 | Millan Tabuenca, Agustin 1136 | E76 King's Indian Defense: Four Pawns Attack | 3 · mesa 13 |
| 8 abr 2021 | Villodre Miranda, Juan Alonso 1572 | 1-0 | Infante Martin, Alonso 1404 | A17 English Opening: Anglo-Indian Defense, Hedgehog System | 3 · mesa 14 |