| Dec 9, 2023 | Tomas Sosa | 1–0 | Cristobal Henriquez Villagra | Round 9: Tomas Sosa - Cristobal Henriquez Villagra | Sicilian Defense: Old Sicilian | |
| Dec 9, 2023 | Marc Narciso Dublan | ½–½ | Tomas Sosa | Round 8: Marc Narciso Dublan - Tomas Sosa | King's Knight Opening: Konstantinopolsky | |
| Dec 9, 2023 | Tomas Sosa | 1–0 | Ernesto J. Fernandez Guillen | Round 7: Tomas Sosa - Ernesto J. Fernandez Guillen | Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line | |
| Dec 9, 2023 | Alan Pichot | 0–1 | Tomas Sosa | Round 6: Alan Pichot - Tomas Sosa | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Dec 9, 2023 | Tomas Sosa | ½–½ | Carles Diaz Camallonga | Round 5: Tomas Sosa - Carles Diaz Camallonga | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Dec 9, 2023 | Jose Rafael Sequera Paolini | 0–1 | Tomas Sosa | Round 4: Jose Rafael Sequera Paolini - Tomas Sosa | Indian Defense: London System | |
| Dec 9, 2023 | Tomas Sosa | 1–0 | Daniel Salinas Tomas | Round 3: Tomas Sosa - Daniel Salinas Tomas | Caro-Kann Defense: Two Knights Attack | |
| Dec 9, 2023 | Serni Ribera Veganzones | 0–1 | Tomas Sosa | Round 2: Serni Ribera Veganzones - Tomas Sosa | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Dec 9, 2023 | Tomas Sosa | 1–0 | David Gomez Benitez | Round 1: Tomas Sosa - David Gomez Benitez | Modern Defense: Norwegian Defense, Norwegian Gambit | |
| Sep 2, 2023 | Tomas Sosa | 1–0 | Miaoyi Lu | Round 9: Tomas Sosa - Miaoyi Lu | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Sep 1, 2023 | Matthias Roeder | 0–1 | Tomas Sosa | Round 8: Matthias Roeder - Tomas Sosa | Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined | |
| Aug 31, 2023 | Tomas Sosa | 1–0 | Jose Antonio Herrera Reyes | Round 7: Tomas Sosa - Jose Antonio Herrera Reyes | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Aug 30, 2023 | Merab Gagunashvili | ½–½ | Tomas Sosa | Round 6: Merab Gagunashvili - Tomas Sosa | French Defense: Tarrasch Variation, Open System, Main Line | |
| Aug 29, 2023 | Tomas Sosa | ½–½ | Harry Grieve | Round 5: Tomas Sosa - Harry Grieve | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Aug 28, 2023 | Serafin Moral Garcia | 0–1 | Tomas Sosa | V INTERNACIONAL DE SAN CRISTOBAL DE LA LAGUNA | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Aug 27, 2023 | Tomas Sosa | 1–0 | Monica Calzetta Ruiz | Round 3: Tomas Sosa - Monica Calzetta Ruiz | Sicilian Defense: Dragon Variation, Levenfish Variation | |
| Aug 27, 2023 | Jesus Manuel Rodriguez Falcon | 0–1 | Tomas Sosa | Round 2: Jesus Manuel Rodriguez Falcon - Tomas Sosa | Sicilian Defense: Dragon Variation, Classical Variation, Grigoriev Variation | |
| May 7, 2023 | Olexiy Bilych | ½–½ | Tomas Sosa | Round 9: Olexiy Bilych - Tomas Sosa | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| May 7, 2023 | Tomas Sosa | 1–0 | Cristian Andres Hernandez | Round 8: Tomas Sosa - Cristian Andres Hernandez | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| May 7, 2023 | Jonathan Cruz | ½–½ | Tomas Sosa | Round 7: Jonathan Cruz - Tomas Sosa | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| May 7, 2023 | Ernesto J. Fernandez Guillen | 0–1 | Tomas Sosa | Round 6: Ernesto J. Fernandez Guillen - Tomas Sosa | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 7, 2023 | Tomas Sosa | 1–0 | Gerard Ayats Llobera | Round 5: Tomas Sosa - Gerard Ayats Llobera | Sicilian Defense: Moscow Variation | |
| May 7, 2023 | Ferran Cervello Tost | ½–½ | Tomas Sosa | Round 3: Ferran Cervello Tost - Tomas Sosa | Zukertort Opening: Queenside Fianchetto Variation | |
| May 7, 2023 | Tomas Sosa | 1–0 | Alberto Jul Perez | Round 2: Tomas Sosa - Alberto Jul Perez | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| May 7, 2023 | Alba De Lomas Busquets | 0–1 | Tomas Sosa | Round 1: Alba De Lomas Busquets - Tomas Sosa | Pseudo Queen's Indian Defense | |
| Apr 10, 2023 | Tomas Sosa | ½–½ | Marc`andria Maurizzi | Ronda 9: Tomas Sosa - Marc`andria Maurizzi | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Apr 9, 2023 | Ernesto J. Fernandez Guillen | ½–½ | Tomas Sosa | Ronda 8: Ernesto J. Fernandez Guillen - Tomas Sosa | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Apr 9, 2023 | Tomas Sosa | ½–½ | Maksim Chigaev | Ronda 7: Tomas Sosa - Maksim Chigaev | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Apr 8, 2023 | Tomas Sosa | ½–½ | Sebastian Iermito | Ronda 6: Tomas Sosa - Sebastian Iermito | Four Knights Game: Scotch Variation Accepted | |
| Apr 7, 2023 | Angel Espinosa Aranda | 0–1 | Tomas Sosa | Ronda 5: Angel Espinosa Aranda - Tomas Sosa | Philidor Defense: Exchange Variation | |
| Apr 7, 2023 | Tomas Sosa | 1–0 | Sergio Trigo Urquijo | Ronda 4: Tomas Sosa - Sergio Trigo Urquijo | Caro-Kann Defense: Two Knights Attack | |
| Apr 6, 2023 | Antonio Granero Roca | 0–1 | Tomas Sosa | Ronda 3: Antonio Granero Roca - Tomas Sosa | Horwitz Defense | |
| Apr 6, 2023 | Tomas Sosa | 1–0 | Miguel Jordan Martinez | Ronda 2: Tomas Sosa - Miguel Jordan Martinez | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Apr 5, 2023 | Jesus Ontanon Gomez | 0–1 | Tomas Sosa | Ronda 1: Jesus Ontanon Gomez - Tomas Sosa | Sicilian Defense: Richter-Rauzer Variation, Dragon Variation | |
| May 4, 2022 | Tomas Sosa | 0–1 | Pedro Antonio Gines Esteo | Round 9: Tomas Sosa - Pedro Antonio Gines Esteo | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| May 4, 2022 | Rafael Rodriguez Lopez | * | Tomas Sosa | Round 8: Rafael Rodriguez Lopez - Tomas Sosa | Ruy Lopez: Morphy Defense, Cozio Defense | |
| May 4, 2022 | Xulio Del Prado Rodriguez | ½–½ | Tomas Sosa | Round 6: Xulio Del Prado Rodriguez - Tomas Sosa | Wade Defense | |
| May 4, 2022 | Tomas Sosa | ½–½ | Miguel Munoz | Round 7: Tomas Sosa - Miguel Munoz | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| May 4, 2022 | Tomas Sosa | ½–½ | Yevgeniy Roshka | Round 5: Tomas Sosa - Li Min Peng | Sicilian Defense: Paulsen-Basman Defense | |
| May 4, 2022 | Jakob Leon Pajeken | 1–0 | Tomas Sosa | Round 4: Jakob Leon Pajeken - Tomas Sosa | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 4, 2022 | Karen Movsziszian | 1–0 | Tomas Sosa | Round 3: Karen Movsziszian - Tomas Sosa | Hungarian Opening | |
| May 4, 2022 | Tomas Sosa | * | Arian Gonzalez Perez | Round 2: Tomas Sosa - Arian Gonzalez Perez | Sicilian Defense: Closed, Traditional | |
| May 4, 2022 | Victor Alvarez Albiol | 1–0 | Tomas Sosa | Round 1: Victor Alvarez Albiol - Tomas Sosa | Sicilian Defense: Moscow Variation | |