| 22 ago 2026 | Hillarp Persson, Tiger 2427 | Sanchez Aguilar, Arnau 2183 | 1-0 | A07 Ataque Indio de Rey | XXVII Open Internacional de Sants - Ciutat de Barcelona 2026 | Group A | 68 | Ver |
| 13 jul 2026 | Sanchez Aguilar, Arnau 2229 | Siscar Conill, Aitor 2128 | 0-1 | C55 Apertura Italiana: Two Knights Defense, Modern Bishop's Opening | XLV Open Villa de Benasque | 39 | Ver |
| 13 jul 2026 | Rodriguez Garcia, Manuel Francisco 2117 | Sanchez Aguilar, Arnau 2229 | ½-½ | A28 Apertura Inglesa: King's English Variation, Four Knights Variation, Quiet Line | XLV Open Villa de Benasque | 42 | Ver |
| 11 jul 2026 | Sanchez Aguilar, Arnau 2229 | Montoliu Cervero, Francisco 2362 | ½-½ | B90 Defensa Siciliana: Najdorf Variation, English Attack | XLV Open Villa de Benasque | 43 | Ver |
| 3 jul 2026 | Sanchez Aguilar, Arnau 2229 | Cruz, Jonathan 2323 | ½-½ | C26 Apertura Vienesa: Stanley Variation, Reversed Spanish | Llinars International Chess Open 2026 | Tancat IM | 24 | Ver |
| 1 jul 2026 | Vergara Jofre, Felipe 2304 | Sanchez Aguilar, Arnau 2229 | ½-½ | A88 Defensa Holandesa: Leningrad Variation, Warsaw Variation | Llinars International Chess Open 2026 | Tancat IM | 51 | Ver |
| 30 jun 2026 | Sanchez Aguilar, Arnau 2229 | Iglesias Ferreira, Andres 2228 | 0-1 | B91 Defensa Siciliana: Najdorf Variation, Zagreb Variation | Llinars International Chess Open 2026 | Tancat IM | 70 | Ver |
| 29 jun 2026 | Cruz, Filemon 2284 | Sanchez Aguilar, Arnau 2229 | 1-0 | A17 Apertura Inglesa: Anglo-Indian Defense, Hedgehog System | Llinars International Chess Open 2026 | Tancat IM | 50 | Ver |
| 28 jun 2026 | Sanchez Aguilar, Arnau 2229 | Boix Redorta, Roc 2159 | 1-0 | E17 Defensa India de Dama: Classical Variation | Llinars International Chess Open 2026 | Tancat IM | 44 | Ver |
| 27 jun 2026 | Serrano Batova, Vicent 2242 | Sanchez Aguilar, Arnau 2229 | 1-0 | A06 Ataque Nimzo-Larsen: Classical Variation | Llinars International Chess Open 2026 | Tancat IM | 37 | Ver |
| 26 jun 2026 | Sanchez Aguilar, Arnau 2229 | Alcala Gonzalez, Cesar 2297 | 1-0 | B13 Defensa Caro-Kann: Exchange Variation | Llinars International Chess Open 2026 | Tancat IM | 50 | Ver |
| 25 jun 2026 | Valenzuela Gomez, Fernando 2346 | Sanchez Aguilar, Arnau 2229 | 1-0 | B01 Defensa Escandinava: Classical Variation | Llinars International Chess Open 2026 | Tancat IM | 42 | Ver |
| 21 jun 2026 | Silva Cerda, Mark Valentin 2166 | Sanchez Aguilar, Arnau 2229 | 1-0 | E43 Defensa Nimzoindia: St. Petersburg Variation | Llinars International Chess Open 2026 | Tancat IM | 54 | Ver |
| 2 abr 2026 | Garcia Caro, Juan Alber 2170 | Sanchez Aguilar, Arnau 2236 | 0-1 | E33 Defensa Nimzoindia: Classical Variation, Milner-Barry Variation | Catalonia Championship Individual for Ages | Sub 20 | 37 | Ver |
| 1 abr 2026 | Navajas Alvarez, Antoni 2103 | Sanchez Aguilar, Arnau 2236 | 0-1 | B01 Defensa Escandinava: Classical Variation | Catalonia Championship Individual for Ages | Sub 20 | 26 | Ver |
| 30 mar 2026 | Porta Isant, Lluis 2050 | Sanchez Aguilar, Arnau 2239 | ½-½ | A06 Apertura Zukertort | Catalonia Championship Individual for Ages | Sub 20 | 42 | Ver |
| 29 mar 2026 | Funes Ostos, Aitor 2208 | Sanchez Aguilar, Arnau 2239 | 1-0 | A88 Defensa Holandesa: Leningrad Variation, Warsaw Variation | Catalonia Championship Individual for Ages | Sub 20 | 40 | Ver |
| 29 mar 2026 | Sanchez Aguilar, Arnau 2239 | Boix Redorta, Roc 2118 | ½-½ | E14 Defensa India de Dama: Spassky System | Catalonia Championship Individual for Ages | Sub 20 | 34 | Ver |
| 22 mar 2026 | Sanchez Aguilar, Arnau 2236 | Valle Luis, Leo 2333 | 0-1 | B52 Defensa Siciliana: Moscow Variation, Main Line | Catalonia Championship Individual for Ages | Sub 20 | 70 | Ver |
| 6 dic 2025 | Horcajuelo Rocamora, Martin 2307 | Sanchez Aguilar, Arnau 2198 | 1-0 | D38 Gambito de Dama rehusado: Ragozin Defense | Copa de España por Equipos S-18 | 55 | Ver |