| 24 ago 2018 | Rojas Pozo, Jose Luis 1966 | 0-1 | Martin Duque, Jesus 2378 | E10 Indian Defense: Anti-Nimzo-Indian | 1 · mesa 1 |
| 24 ago 2018 | Hernando Pertierra, Jose C. 2354 | 1-0 | Baeza Escudero, Javier 1941 | A15 English Opening: Anglo-Indian Defense, King's Indian Formation | 1 · mesa 2 |
| 24 ago 2018 | Cuellar Gutierrez, Raul 1927 | 0-1 | Elissalt Cardenas, Hector 2323 | E01 Catalan Opening: Tarrasch Defense | 1 · mesa 3 |
| 24 ago 2018 | Quispe Arteaga, Gabriel 2312 | 1-0 | Lobato Lavin, Alvaro 1923 | E65 King's Indian Defense: Fianchetto Variation, Yugoslav Variation | 1 · mesa 4 |
| 24 ago 2018 | Sotoca Aguado, Jose 1920 | 0-1 | Perez Gonzalez, Jose Manuel 2277 | B23 Sicilian Defense: Closed | 1 · mesa 5 |
| 24 ago 2018 | Longa Yauca, Javier 2268 | 1-0 | Martin Arbeloa, Fernando 1918 | A50 Mexican Defense | 1 · mesa 6 |
| 24 ago 2018 | Perez Vazquez, Manuel 1903 | 0-1 | Martinez Fernandez, Raul 2199 | D17 Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation | 1 · mesa 7 |
| 24 ago 2018 | Semprun Martinez, Fernando 2145 | 1-0 | Garcia Galeote, Lorenzo 1899 | B01 Scandinavian Defense: Gubinsky-Melts Defense | 1 · mesa 8 |
| 24 ago 2018 | Andrade Sandoval, Bianca 1890 | ½-½ | Mkrtchyan, Levon 2128 | A45 Indian Defense: Accelerated London System | 1 · mesa 9 |
| 24 ago 2018 | Pastor Alonso De Prado, Alberto 2112 | ½-½ | Carrasco Coquillat, Alvaro 1865 | B22 Sicilian Defense: Alapin Variation, Smith-Morra Declined | 1 · mesa 10 |
| 24 ago 2018 | Lopez Heras, Arturo 1863 | ½-½ | Fernandez De Pablo, Miguel A. 2107 | B41 Sicilian Defense: Kan Variation | 1 · mesa 11 |
| 24 ago 2018 | Reyes Penas, Sebastian 2103 | 1-0 | Camacho Casado, Natalio 1836 | B41 Sicilian Defense: Kan Variation | 1 · mesa 12 |
| 24 ago 2018 | Fernandez Garcia, Ignacio 1811 | 0-1 | Cao Armillas, Jesus 2043 | B20 Sicilian Defense: Lasker-Dunne Attack | 1 · mesa 13 |
| 24 ago 2018 | Brull Cortes, Boris 2029 | 1-0 | Fernandez Quintero, Jose Antonio 1802 | | 1 · mesa 14 |
| 24 ago 2018 | Pardo Veguezzi, Jose M. 1800 | 0-1 | Aziz Ortego, Omar Luis 2024 | C46 Three Knights Opening | 1 · mesa 15 |
| 24 ago 2018 | Khudov, Oleksandr 2021 | 1-0 | Carrasco Coquillat, Jorge 1799 | D02 Queen's Pawn Game: London System | 1 · mesa 16 |
| 24 ago 2018 | Sancho Castiello, Federico 1795 | 0-1 | Martin Martin, Luis Vicente 1998 | B01 Scandinavian Defense: Main Line | 1 · mesa 17 |
| 24 ago 2018 | Lopez de Turiso, Jose Angel 1990 | 1-0 | Trujillo Martin, Carlos 1761 | C15 French Defense: Winawer Variation, Alekhine-Maróczy Gambit | 1 · mesa 18 |
| 24 ago 2018 | Gallego del Dedo, Jorge | 0-1 | Lopez Mijail, Nicolas 1983 | B24 Sicilian Defense: Closed | 1 · mesa 19 |
| 25 ago 2018 | Martin Duque, Jesus 2378 | 1-0 | Semprun Martinez, Fernando 2145 | B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | 2 · mesa 1 |
| 25 ago 2018 | Brull Cortes, Boris 2029 | 1-0 | Hernando Pertierra, Jose C. 2354 | B06 Modern Defense: Standard Line | 2 · mesa 2 |
| 25 ago 2018 | Elissalt Cardenas, Hector 2323 | 0-1 | Reyes Penas, Sebastian 2103 | E43 Nimzo-Indian Defense: St. Petersburg Variation | 2 · mesa 3 |
| 25 ago 2018 | Aziz Ortego, Omar Luis 2024 | 0-1 | Quispe Arteaga, Gabriel 2312 | B20 Sicilian Defense: Staunton-Cochrane Variation | 2 · mesa 4 |
| 25 ago 2018 | Perez Gonzalez, Jose Manuel 2277 | 1-0 | Khudov, Oleksandr 2021 | C07 French Defense: Tarrasch Variation, Chistyakov Defense, Modern Line | 2 · mesa 5 |
| 25 ago 2018 | Martin Martin, Luis Vicente 1998 | 0-1 | Longa Yauca, Javier 2268 | A48 London System | 2 · mesa 6 |
| 25 ago 2018 | Martinez Fernandez, Raul 2199 | ½-½ | Lopez de Turiso, Jose Angel 1990 | C30 King's Gambit Declined: Miles Defense | 2 · mesa 7 |
| 25 ago 2018 | Lopez Mijail, Nicolas 1983 | 0-1 | Valles Moreno, Ivan 2416 | B00 Pirc Defense | 2 · mesa 8 |
| 25 ago 2018 | Mkrtchyan, Levon 2128 | 1-0 | Lopez Heras, Arturo 1863 | B87 Sicilian Defense: Sozin Attack, Flank Variation | 2 · mesa 9 |
| 25 ago 2018 | Cid Garcia, Ramon 1857 | 0-1 | Pastor Alonso De Prado, Alberto 2112 | A14 English Opening: Agincourt Defense, Neo-Catalan Declined | 2 · mesa 10 |
| 25 ago 2018 | Fernandez De Pablo, Miguel A. 2107 | 1-0 | Perez Cameselle, Francisco 1790 | C44 Ponziani Opening: Jaenisch Counterattack | 2 · mesa 11 |
| 25 ago 2018 | Carrasco Coquillat, Alvaro 1865 | 1-0 | Camarero Izquierdo, Juan Carlos 1963 | A80 Queen's Pawn Game: Veresov Attack, Dutch System | 2 · mesa 12 |
| 25 ago 2018 | Baeza Escudero, Javier 1941 | 1-0 | Fernandez Garcia, Ignacio 1811 | C05 French Defense: Tarrasch Variation, Closed Variation | 2 · mesa 13 |
| 25 ago 2018 | Camacho Casado, Natalio 1836 | 1-0 | Cuellar Gutierrez, Raul 1927 | D85 Grünfeld Defense: Exchange Variation | 2 · mesa 14 |
| 25 ago 2018 | Lobato Lavin, Alvaro 1923 | 0-1 | Pardo Veguezzi, Jose M. 1800 | B50 Sicilian Defense: Modern Variations, Tartakower | 2 · mesa 15 |
| 25 ago 2018 | Carrasco Coquillat, Jorge 1799 | 1-0 | Sotoca Aguado, Jose 1920 | A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | 2 · mesa 16 |
| 25 ago 2018 | Martin Arbeloa, Fernando 1918 | 1-0 | Sancho Castiello, Federico 1795 | E46 Nimzo-Indian Defense: Simagin Variation | 2 · mesa 17 |
| 25 ago 2018 | Trujillo Martin, Carlos 1761 | 0-1 | Perez Vazquez, Manuel 1903 | A40 Queen's Pawn Game: Modern Defense | 2 · mesa 18 |
| 25 ago 2018 | Garcia Galeote, Lorenzo 1899 | ½-½ | Gallego del Dedo, Jorge | E70 King's Indian Defense: Kramer Variation | 2 · mesa 19 |
| 26 ago 2018 | Longa Yauca, Javier 2268 | ½-½ | Martin Duque, Jesus 2378 | A46 Indian Defense: Knights Variation | 3 · mesa 1 |
| 26 ago 2018 | Quispe Arteaga, Gabriel 2312 | 1-0 | Brull Cortes, Boris 2029 | A49 Indian Defense: Przepiorka Variation | 3 · mesa 2 |
| 26 ago 2018 | Reyes Penas, Sebastian 2103 | 1-0 | Perez Gonzalez, Jose Manuel 2277 | B91 Sicilian Defense: Najdorf Variation, Zagreb Variation | 3 · mesa 3 |
| 26 ago 2018 | Valles Moreno, Ivan 2416 | 1-0 | Carrasco Coquillat, Alvaro 1865 | B53 Sicilian Defense: Chekhover Variation | 3 · mesa 4 |
| 26 ago 2018 | Cao Armillas, Jesus 2043 | 1-0 | Martinez Fernandez, Raul 2199 | D16 Slav Defense: Smyslov Variation | 3 · mesa 5 |
| 26 ago 2018 | Lopez de Turiso, Jose Angel 1990 | 0-1 | Mkrtchyan, Levon 2128 | A31 English Opening: Symmetrical Variation, Anti-Benoni Variation, Kasparov-Vaganian Gambit | 3 · mesa 6 |
| 26 ago 2018 | Pastor Alonso De Prado, Alberto 2112 | ½-½ | Fernandez De Pablo, Miguel A. 2107 | B00 Pirc Defense | 3 · mesa 7 |
| 26 ago 2018 | Hernando Pertierra, Jose C. 2354 | 0-1 | Martin Arbeloa, Fernando 1918 | | 3 · mesa 8 |
| 26 ago 2018 | Baeza Escudero, Javier 1941 | 0-1 | Elissalt Cardenas, Hector 2323 | C41 Philidor Defense: Lion Variation | 3 · mesa 9 |
| 26 ago 2018 | Semprun Martinez, Fernando 2145 | 0-1 | Andrade Sandoval, Bianca 1890 | C11 French Defense: Steinitz Variation, Boleslavsky Variation | 3 · mesa 10 |
| 26 ago 2018 | Perez Vazquez, Manuel 1903 | 0-1 | Aziz Ortego, Omar Luis 2024 | A83 Dutch Defense: Staunton Gambit, Lasker Variation | 3 · mesa 11 |
| 26 ago 2018 | Khudov, Oleksandr 2021 | 1-0 | Camacho Casado, Natalio 1836 | D00 Queen's Pawn Game: Accelerated London System | 3 · mesa 12 |