| 26 jun 2021 | Starostits, Ilmars 2457 | 1-0 | Maria Lopez, Jorge Luis 1775 | B25 Sicilian Defense: Closed | 1 · mesa 1 |
| 26 jun 2021 | Vazquez Gomez, Marcos 1731 | ½-½ | Larino Nieto, David 2455 | B01 Scandinavian Defense: Main Line, Mieses Variation | 1 · mesa 2 |
| 26 jun 2021 | Tischbierek, Raj 2441 | 1-0 | Rey Chimera, Luca 1725 | C00 French Defense: King's Indian Attack | 1 · mesa 3 |
| 26 jun 2021 | Torcal Andolz, Alfonso 1709 | 0-1 | Martinez Reyes, Pedro Ramon 2417 | A27 English Opening: King's English Variation, Three Knights System | 1 · mesa 4 |
| 26 jun 2021 | Alonso Garcia, Aaron 2363 | 1-0 | Victorero Dominguez, Alejandro 1709 | B01 Scandinavian Defense: Lasker Variation | 1 · mesa 5 |
| 26 jun 2021 | Conde Riveiro, Xacobe 1705 | 0-1 | Medarde Santiago, Luis Marcos 2343 | B56 Sicilian Defense: Classical Variation | 1 · mesa 6 |
| 26 jun 2021 | Sanchez Aller, Fernando 2321 | 1-0 | Prol Lusquinos, Jose Manuel 1691 | B90 Sicilian Defense: Najdorf Variation, Lipnitsky Attack | 1 · mesa 7 |
| 26 jun 2021 | Perez Sousa, Xabier 1688 | 0-1 | Laiz Ibanez, Hector 2311 | A20 English Opening: King's English Variation | 1 · mesa 8 |
| 26 jun 2021 | Habans Aguerrea, Javier 2304 | 1-0 | Bastos Gonzalez, Gonzalo 1687 | A45 Trompowsky Attack | 1 · mesa 9 |
| 27 jun 2021 | Krivenko, Dion 2077 | 1-0 | Starostits, Ilmars 2457 | B32 Sicilian Defense: Godiva Variation | 2 · mesa 1 |
| 27 jun 2021 | Perez Carballo, David 2069 | 0-1 | Tischbierek, Raj 2441 | A07 King's Indian Attack: Pachman System | 2 · mesa 2 |
| 27 jun 2021 | Martinez Reyes, Pedro Ramon 2417 | 1-0 | Troffiguer, Olivier 2052 | B10 Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | 2 · mesa 3 |
| 27 jun 2021 | Kolb, Markus 2025 | 0-1 | Alonso Garcia, Aaron 2363 | A37 English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | 2 · mesa 4 |
| 27 jun 2021 | Medarde Santiago, Luis Marcos 2343 | 1-0 | Perdomo Araujo, Angel Eduardo 2029 | B01 Scandinavian Defense: Gubinsky-Melts Defense | 2 · mesa 5 |
| 27 jun 2021 | Palacios Gonzalez, Miguel 2008 | ½-½ | Sanchez Aller, Fernando 2321 | C56 Italian Game: Scotch Gambit, Max Lange Attack | 2 · mesa 6 |
| 27 jun 2021 | Abrisqueta Zudaire, Leyre 1999 | 0-1 | Habans Aguerrea, Javier 2304 | A38 English Opening: Symmetrical Variation, Duchamp Variation | 2 · mesa 7 |
| 27 jun 2021 | Maier, Christian 2295 | 0-1 | Sanchez Arevalo, Luis 2004 | D01 Richter-Veresov Attack: Veresov Variation | 2 · mesa 8 |
| 27 jun 2021 | Roldan Marques, Marta 1989 | 0-1 | Urriza Iricibar, Pablo 2289 | B23 Sicilian Defense: Closed | 2 · mesa 9 |
| 28 jun 2021 | Tischbierek, Raj 2441 | 1-0 | Fernandez Garcia, Gumersindo 2145 | B45 Sicilian Defense: Four Knights Variation | 3 · mesa 1 |
| 28 jun 2021 | Fernandez Lopez, Ruben 2134 | ½-½ | Martinez Reyes, Pedro Ramon 2417 | B36 Sicilian Defense: Accelerated Dragon, Maróczy Bind | 3 · mesa 2 |
| 28 jun 2021 | Alonso Garcia, Aaron 2363 | 1-0 | Pintor, Simao Maciel Abranch | B35 Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | 3 · mesa 3 |
| 28 jun 2021 | Hernandez Ramos, David 2114 | ½-½ | Medarde Santiago, Luis Marcos 2343 | D20 Queen's Gambit Accepted: Old Variation | 3 · mesa 4 |
| 28 jun 2021 | Habans Aguerrea, Javier 2304 | 1-0 | Teijeiro Barros, Alberto 2119 | A45 Trompowsky Attack: Classical Defense, Big Center Variation | 3 · mesa 5 |
| 28 jun 2021 | Urriza Iricibar, Pablo 2289 | 1-0 | Pindado Campos, Raul 2105 | B26 Sicilian Defense: Closed | 3 · mesa 6 |
| 28 jun 2021 | Rodriguez Polo, Mateo 2103 | ½-½ | Ortega Ruiz, Jose Miguel 2259 | C01 French Defense: Exchange Variation | 3 · mesa 7 |
| 28 jun 2021 | Acor, Corey 2223 | 1-0 | Penta Torres, Jose Carlos | C00 French Defense: King's Indian Attack | 3 · mesa 8 |
| 28 jun 2021 | Torcal Miguel, Oscar 2101 | 0-1 | Rey Malde, Henrique 2218 | B33 Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | 3 · mesa 9 |
| 28 jun 2021 | Gonzalez Gonzalez, Alfonso 2088 | 0-1 | Saenz Narciso, Miguel Angel 2201 | A45 Trompowsky Attack | 3 · mesa 10 |
| 29 jun 2021 | Rey Malde, Henrique 2218 | ½-½ | Alonso Garcia, Aaron 2363 | C16 French Defense: Winawer Variation, Petrosian Variation | 4 · mesa 1 |
| 29 jun 2021 | Saenz Narciso, Miguel Angel 2201 | 0-1 | Habans Aguerrea, Javier 2304 | B10 Caro-Kann Defense: Two Knights Attack | 4 · mesa 2 |
| 29 jun 2021 | Villar Perez, Samuel 2177 | ½-½ | Urriza Iricibar, Pablo 2289 | A88 Dutch Defense: Leningrad Variation, Warsaw Variation | 4 · mesa 3 |
| 29 jun 2021 | Del Prado Rodriguez, Xulio 2149 | 0-1 | Acor, Corey 2223 | A52 Indian Defense: Budapest Gambit Accepted, Main Line, Rubinstein Variation | 4 · mesa 4 |
| 29 jun 2021 | Larino Nieto, David 2455 | 1-0 | Labiano Hernandez, Juan 2184 | C47 Four Knights Game: Glek System | 4 · mesa 5 |
| 29 jun 2021 | Tabuenca Mendataurigoitia, Dani 1858 | 0-1 | Sanchez Aller, Fernando 2321 | C45 Scotch Game: Malaniuk Variation | 4 · mesa 6 |
| 29 jun 2021 | Martinez Reyes, Pedro Ramon 2417 | 1-0 | Hernandez Ramos, David 2114 | B21 Sicilian Defense: McDonnell Attack | 4 · mesa 7 |
| 29 jun 2021 | Medarde Santiago, Luis Marcos 2343 | 1-0 | Fernandez Lopez, Ruben 2134 | B33 Sicilian Defense: Lasker-Pelikan Variation, Bird Variation | 4 · mesa 8 |
| 29 jun 2021 | Laiz Ibanez, Hector 2311 | 1-0 | Rodriguez Polo, Mateo 2103 | C95 Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | 4 · mesa 9 |
| 29 jun 2021 | Gonzalez Guedes, Iyan 2291 | 1-0 | Krivenko, Dion 2077 | A04 Zukertort Opening: Sicilian Invitation | 4 · mesa 10 |
| 30 jun 2021 | Habans Aguerrea, Javier 2304 | 1-0 | Acor, Corey 2223 | A45 Trompowsky Attack | 5 · mesa 1 |
| 30 jun 2021 | Laiz Ibanez, Hector 2311 | 1-0 | Larino Nieto, David 2455 | B00 Pirc Defense | 5 · mesa 2 |
| 30 jun 2021 | Urriza Iricibar, Pablo 2289 | 0-1 | Tischbierek, Raj 2441 | B26 Sicilian Defense: Closed | 5 · mesa 3 |
| 30 jun 2021 | Martinez Reyes, Pedro Ramon 2417 | 1-0 | Gonzalez Guedes, Iyan 2291 | B22 Sicilian Defense: Alapin Variation, Stoltz Attack | 5 · mesa 4 |
| 30 jun 2021 | Alonso Garcia, Aaron 2363 | 0-1 | Ortega Ruiz, Jose Miguel 2259 | C54 Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | 5 · mesa 5 |
| 30 jun 2021 | Rey Malde, Henrique 2218 | 0-1 | Medarde Santiago, Luis Marcos 2343 | B90 Sicilian Defense: Najdorf Variation, Adams Attack | 5 · mesa 6 |
| 30 jun 2021 | Sanchez Aller, Fernando 2321 | 1-0 | Villar Perez, Samuel 2177 | C22 Center Game: Paulsen Attack Variation | 5 · mesa 7 |
| 30 jun 2021 | Starostits, Ilmars 2457 | ½-½ | Bringas Gomez, Artai 2098 | A40 Polish Defense | 5 · mesa 8 |
| 30 jun 2021 | Rodriguez Lopez, Rafael 2205 | 1-0 | Lacrosse, Marc 2102 | A07 King's Indian Attack: Yugoslav Variation | 5 · mesa 9 |
| 30 jun 2021 | Torcal Miguel, Oscar 2101 | 0-1 | Saenz Narciso, Miguel Angel 2201 | A29 English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | 5 · mesa 10 |
| 1 jul 2021 | Tischbierek, Raj 2441 | 1-0 | Habans Aguerrea, Javier 2304 | A21 English Opening: King's English Variation, Kramnik-Shirov Counterattack | 6 · mesa 1 |
| 1 jul 2021 | Ortega Ruiz, Jose Miguel 2259 | ½-½ | Martinez Reyes, Pedro Ramon 2417 | A04 Zukertort Opening: Sicilian Invitation | 6 · mesa 2 |