| 20 oct 2026 | Deusa Ballesteros, Lucas 2264 | ½-½ | Adilbekuly, Altair 2114 | A13 English Opening: Agincourt Defense, Catalan Defense Accepted | FIDE World Championship 2026 - O17 | 10 · mesa 15 |
| 20 oct 2026 | Ibanez Macias, Julen 2153 | ½-½ | Deusa Ballesteros, Lucas 2264 | D03 Queen's Pawn Game: Torre Attack, Gossip Variation | FIDE World Championship 2026 - O17 | 11 · mesa 14 |
| 19 oct 2026 | Hamzaev, Shahzodbek 2211 | ½-½ | Deusa Ballesteros, Lucas 2264 | E49 Nimzo-Indian Defense: Normal Variation, Botvinnik System | FIDE World Championship 2026 - O17 | 9 · mesa 14 |
| 18 oct 2026 | Deusa Ballesteros, Lucas 2264 | 1-0 | Pellegrini, Noah 2099 | D28 Queen's Gambit Accepted: Classical Defense, Alekhine System | FIDE World Championship 2026 - O17 | 7 · mesa 15 |
| 18 oct 2026 | Deusa Ballesteros, Lucas 2264 | 0-1 | Farias, David Nuno M E 2356 | E04 Catalan Opening: Open Defense | FIDE World Championship 2026 - O17 | 8 · mesa 7 |
| 16 oct 2026 | Deusa Ballesteros, Lucas 2264 | ½-½ | Sierra Vallina, Lionel 2381 | D31 Queen's Gambit Declined: Janowski Variation | FIDE World Championship 2026 - O17 | 5 · mesa 11 |
| 16 oct 2026 | Asanov, Reshat 2122 | ½-½ | Deusa Ballesteros, Lucas 2264 | C00 French Defense: Queen's Knight | FIDE World Championship 2026 - O17 | 6 · mesa 14 |
| 15 oct 2026 | Deusa Ballesteros, Lucas 2264 | ½-½ | kiladze, Luka 2351 | A13 English Opening: Agincourt Defense, Catalan Defense Accepted | FIDE World Championship 2026 - O17 | 3 · mesa 3 |
| 15 oct 2026 | Beristenov, Kair 2307 | 1-0 | Deusa Ballesteros, Lucas 2264 | D38 Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | FIDE World Championship 2026 - O17 | 4 · mesa 6 |
| 14 oct 2026 | Deusa Ballesteros, Lucas 2264 | 1-0 | Carrillo Haro, Jorge 1925 | E04 Catalan Opening: Open Defense | FIDE World Championship 2026 - O17 | 1 · mesa 21 |
| 14 oct 2026 | Gauci, Gabriel 1754 | 0-1 | Deusa Ballesteros, Lucas 2264 | B20 Sicilian Defense: Mengarini Variation | FIDE World Championship 2026 - O17 | 2 · mesa 14 |
| 8 ago 2026 | Domene Mulyukov, Alexander 2399 | ½-½ | Deusa Ballesteros, Lucas 2123 | A00 Hungarian Opening | CE Individual Juvenil Sub-18 - 2026 | 9 · mesa 11 |
| 7 ago 2026 | Deusa Ballesteros, Lucas 2123 | 1-0 | Junquera Guerrero, David 2026 | E05 Catalan Opening: Open Defense, Classical Line | CE Individual Juvenil Sub-18 - 2026 | 7 · mesa 26 |
| 7 ago 2026 | Martinez Rodriguez, Francisco Salvador 2025 | ½-½ | Deusa Ballesteros, Lucas 2123 | C02 French Defense: Advance Variation, Euwe Variation | CE Individual Juvenil Sub-18 - 2026 | 8 · mesa 21 |
| 6 ago 2026 | Gomez Aguirre, Juan Alberto 2343 | 1-0 | Deusa Ballesteros, Lucas 2123 | D04 Queen's Pawn Game: Colle System | CE Individual Juvenil Sub-18 - 2026 | 6 · mesa 9 |
| 5 ago 2026 | Calvo Gonzalez, Jose Felix 2322 | 1-0 | Deusa Ballesteros, Lucas 2123 | B13 Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line | CE Individual Juvenil Sub-18 - 2026 | 4 · mesa 8 |
| 5 ago 2026 | Deusa Ballesteros, Lucas 2123 | 1-0 | Hijarrubia Alvarez-Cuevas, Gonzalo 2072 | E06 Catalan Opening: Closed | CE Individual Juvenil Sub-18 - 2026 | 5 · mesa 24 |
| 4 ago 2026 | Deusa Ballesteros, Lucas 2123 | ½-½ | Martin Cabeza, Nicolas 2313 | A13 English Opening: Neo-Catalan | CE Individual Juvenil Sub-18 - 2026 | 3 · mesa 10 |
| 2 ago 2026 | Deusa Ballesteros, Lucas 2073 | 1-0 | Gomez Aguirre, Juan Alberto 2277 | A04 Zukertort Opening: Queenside Fianchetto Variation | CAMPEONATO DE ESPAÑA RÁPIDO SUB 18 2026 | 8 · mesa 39 |
| 2 ago 2026 | Sierra Vallina, Lionel 2383 | 1-0 | Deusa Ballesteros, Lucas 2073 | C02 French Defense: Advance Variation, Paulsen Attack | CAMPEONATO DE ESPAÑA RÁPIDO SUB 18 2026 | 9 · mesa 36 |
| 1 ago 2026 | Deusa Ballesteros, Lucas 2073 | ½-½ | Vioque Gonzalez, Nicolas 2356 | D07 Queen's Gambit Declined: Chigorin Defense, Lazard Gambit | CAMPEONATO DE ESPAÑA RÁPIDO SUB 18 2026 | 2 · mesa 37 |
| 1 ago 2026 | Romero Barkouk, Rayan 1894 | ½-½ | Deusa Ballesteros, Lucas 2073 | C07 French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | CAMPEONATO DE ESPAÑA RÁPIDO SUB 18 2026 | 3 · mesa 40 |
| 1 ago 2026 | Fernandez Ramos, Iago 2334 | 1-0 | Deusa Ballesteros, Lucas 2073 | C00 French Defense: King's Indian Attack | CAMPEONATO DE ESPAÑA RÁPIDO SUB 18 2026 | 5 · mesa 37 |
| 10 may 2026 | Deusa Ballesteros, Lucas 2057 | 1-0 | Coca Mejia, Izan Deivy 1599 | A84 Dutch Defense: Rubinstein Variation | FINAL El gran salto 2025 - Sub-8 a sub-18 | 1 · mesa 8 |
| 10 may 2026 | Coca Mejia, Izan Deivy 1599 | 0-1 | Deusa Ballesteros, Lucas 2057 | B23 Sicilian Defense: Grand Prix Attack | FINAL El gran salto 2025 - Sub-8 a sub-18 | 2 · mesa 8 |
| 10 may 2026 | Deusa Ballesteros, Lucas 2057 | 1-0 | Cao, Xinyu 2075 | E16 Queen's Indian Defense: Capablanca Variation | FINAL El gran salto 2025 - Sub-8 a sub-18 | 3 · mesa 8 |
| 10 may 2026 | Cao, Xinyu 2075 | 0-1 | Deusa Ballesteros, Lucas 2057 | E48 Nimzo-Indian Defense: Normal Variation, Classical Defense | FINAL El gran salto 2025 - Sub-8 a sub-18 | 4 · mesa 8 |
| 10 may 2026 | Deusa Ballesteros, Lucas 2057 | ½-½ | Sala Esquiva, Miguel 1940 | A19 English Opening: Anglo-Indian Defense, Flohr-Mikenas-Carls Variation, Nei Gambit | FINAL El gran salto 2025 - Sub-8 a sub-18 | 5 · mesa 8 |
| 10 may 2026 | Sala Esquiva, Miguel 1940 | 0-1 | Deusa Ballesteros, Lucas 2057 | C11 French Defense: Steinitz Variation, Boleslavsky Variation | FINAL El gran salto 2025 - Sub-8 a sub-18 | 6 · mesa 8 |
| 10 may 2026 | Verkholantcev, Andrei 2091 | ½-½ | Deusa Ballesteros, Lucas 2057 | E90 King's Indian Defense: Larsen Variation | FINAL El gran salto 2025 - Sub-8 a sub-18 | 7 · mesa 7 |
| 10 may 2026 | Verkholantcev, Andrei 2091 | ½-½ | Deusa Ballesteros, Lucas 2057 | C11 French Defense: Steinitz Variation, Boleslavsky Variation | FINAL El gran salto 2025 - Sub-8 a sub-18 | 8 · mesa 7 |
| 11 abr 2026 | Deusa Ballesteros, Lucas 2057 | 1-0 | Ruiz Servent, Marti 1619 | | V Torneo 960 Quart de Poblet | 1 · mesa 5 |
| 11 abr 2026 | Soler Fombuena, Sergi 1849 | 0-1 | Deusa Ballesteros, Lucas 2057 | | V Torneo 960 Quart de Poblet | 2 · mesa 4 |
| 11 abr 2026 | Deusa Ballesteros, Lucas 2057 | 1-0 | Torosyan Saghatelyan, Arturo 1928 | | V Torneo 960 Quart de Poblet | 3 · mesa 4 |
| 11 abr 2026 | Ortega Herrera, Paris Francisco 2046 | 1-0 | Deusa Ballesteros, Lucas 2057 | | V Torneo 960 Quart de Poblet | 4 · mesa 2 |
| 11 abr 2026 | Fernandes, Tiago Saraiva 1897 | 0-1 | Deusa Ballesteros, Lucas 2057 | | V Torneo 960 Quart de Poblet | 5 · mesa 3 |
| 11 abr 2026 | Deusa Ballesteros, Lucas 2057 | 1-0 | Boluda Costa, Julen 1861 | | V Torneo 960 Quart de Poblet | 6 · mesa 2 |
| 3 abr 2026 | Torres Sanchez, Jose 2131 | 0-1 | Deusa Ballesteros, Lucas 2057 | | V Torneo 960 Quart de Poblet | 7 · mesa 1 |
| 22 feb 2026 | Deusa Ballesteros, Lucas 2123 | ½-½ | Lopez Martinez, Jaime 2111 | D31 Queen's Gambit Declined: Semi-Slav, Abrahams Variation | El Gran Salto - Paterna sub-18 | 4 · mesa 4 |
| 22 feb 2026 | Verkolantchev, Andrei | * | Deusa Ballesteros, Lucas 2123 | A01 Nimzo-Larsen Attack: Modern Variation | El Gran Salto - Paterna sub-18 | 5 · mesa 4 |
| 22 feb 2026 | Deusa Ballesteros, Lucas 2123 | ½-½ | Gonzalez Lopez, Lucas 2183 | E90 King's Indian Defense: Larsen Variation | El Gran Salto - Paterna sub-18 | 6 · mesa 3 |
| 22 feb 2026 | Deusa Ballesteros, Lucas 2123 | * | Antoneac Antoneac, Pablo Silviu 2135 | E05 Catalan Opening: Open Defense, Classical Line | El Gran Salto - Paterna sub-18 | 7 · mesa 3 |
| 4 ene 2026 | Deusa Ballesteros, Lucas 2131 | ½-½ | Fiorito, Fabian 2313 | E90 King's Indian Defense: Larsen Variation | Roquetas Chess Festival 2026 - XXXVII International Open (440419) | 4 · mesa 27 |
| 3 ene 2026 | Deusa Ballesteros, Lucas 2131 | 0-1 | Leiva, Gianmarco 2335 | E11 Bogo-Indian Defense: Retreat Variation | Roquetas Chess Festival 2026 - XXXVII International Open (440419) | 2 · mesa 25 |
| 6 dic 2025 | Deusa Ballesteros, Lucas 2117 | ½-½ | Krauchi Romero, Martin 2301 | E06 Catalan Opening: Closed | XVI Copa de España por Equipos Edades Sub 18 | 4 · mesa 2 |
| 2 nov 2025 | Deusa Ballesteros, Lucas 2101 | ½-½ | Mannion, Stephen R 2178 | D27 Queen's Gambit Accepted: Classical Defense, Main Line | BENIDORM CHESS OPEN A 2025 | 9 · mesa 13 |
| 1 nov 2025 | Deusa Ballesteros, Lucas 2101 | ½-½ | Gruenter, Martin 2194 | E11 Bogo-Indian Defense: Nimzowitsch Variation | BENIDORM CHESS OPEN A 2025 | 8 · mesa 14 |
| 31 oct 2025 | Redzisz, Michal 2254 | ½-½ | Deusa Ballesteros, Lucas 2101 | A06 Nimzo-Larsen Attack: Classical Variation | BENIDORM CHESS OPEN A 2025 | 7 · mesa 12 |
| 28 oct 2025 | Deusa Ballesteros, Lucas 2101 | ½-½ | Delfino, Luigi 2249 | A35 English Opening: Symmetrical Variation, Two Knights Variation | BENIDORM CHESS OPEN A 2025 | 3 · mesa 10 |
| 28 oct 2025 | Serarols Mabras, Bernat 2264 | 1-0 | Deusa Ballesteros, Lucas 2101 | A57 Benko Gambit | BENIDORM CHESS OPEN A 2025 | 4 · mesa 12 |