| 28 ago 2026 | Ruiz Buendia, Miguel 2345 | Berdayes Ason, Dylan Isidro 2463 | 0-1 | B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | XXVII Open Internacional de Sants - Ciutat de Barcelona 2026 | Group A | 41 | Ver |
| 27 ago 2026 | Ruiz Buendia, Miguel 2345 | Chasin, Nico 2470 | 0-1 | B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | XXVII Open Internacional de Sants - Ciutat de Barcelona 2026 | Group A | 68 | Ver |
| 23 ago 2026 | Kuru, Atilla 2508 | Ruiz Buendia, Miguel 2345 | 1-0 | C54 Italian Game: Classical Variation, Giuoco Pianissimo | XXVII Open Internacional de Sants - Ciutat de Barcelona 2026 | Group A | 56 | Ver |
| 23 may 2026 | Ruiz Vazquez, Javier 2201 | Ruiz Buendia, Miguel 2095 | 1-0 | B90 Sicilian Defense: Najdorf Variation | IV Torneo Ajedrez Villa de Noblejas | Torneo Blitz | 55 | Ver |
| 11 abr 2026 | Harshavardhan G B 2492 | Ruiz Buendia, Miguel 2299 | 1-0 | C50 Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | V Open Chess Menorca 2026 | Open A | 41 | Ver |
| 8 abr 2026 | Oro, Faustino 2528 | Ruiz Buendia, Miguel 2299 | 1-0 | A35 English Opening: Symmetrical Variation, Four Knights Variation | V Open Chess Menorca 2026 | Open A | 39 | Ver |
| 5 abr 2026 | Ruiz Buendia, Miguel 2299 | Amartuvshin, Ganzorig 2418 | 0-1 | B46 Sicilian Defense: Taimanov Variation | X Open Semana Santa 2026 - Grupo A | 33 | Ver |
| 4 abr 2026 | Ruiz Buendia, Miguel 2299 | Xie, Kaifan 2460 | 0-1 | C70 Ruy Lopez: Morphy Defense, Schliemann Defense Deferred | X Open Semana Santa 2026 - Grupo A | 62 | Ver |
| 3 abr 2026 | Fiorito, Joaquin 2432 | Ruiz Buendia, Miguel 2299 | 0-1 | E42 Nimzo-Indian Defense: Rubinstein System, Rubinstein Variation | X Open Semana Santa 2026 - Grupo A | 49 | Ver |
| 30 mar 2026 | Ruiz Buendia, Miguel 2279 | Stefansson, Vignir Vatnar 2511 | 0-1 | B29 Sicilian Defense: Nimzowitsch Variation, Advance Variation | Reykjavik Open 2026 | 58 | Ver |
| 28 mar 2026 | Ruiz Buendia, Miguel 2279 | Sochacki, Christophe 2459 | 0-1 | B30 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | Reykjavik Open 2026 | 54 | Ver |
| 26 mar 2026 | Wadsworth, Matthew J 2522 | Ruiz Buendia, Miguel 2279 | 1-0 | D78 Neo-Grünfeld Defense: Classical Variation, Original Defense | Reykjavik Open 2026 | 49 | Ver |
| 26 mar 2026 | Ruiz Buendia, Miguel 2279 | Brodsky, David 2505 | ½-½ | B31 Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | Reykjavik Open 2026 | 45 | Ver |
| 14 mar 2026 | Fernandez Guillen, Ernesto J. 2460 | Ruiz Buendia, Miguel 2279 | ½-½ | A04 Zukertort Opening: Sicilian Invitation | Ronda 9 Tres Peons Vs Mollet: Fernandez Guillen, Ernesto J. - Ruiz Buendia, Miguel | 29 | Ver |
| 20 feb 2026 | Ruiz Buendia, Miguel 2302 | Vergara Anton, Diego 2432 | 0-1 | C10 French Defense: Rubinstein Variation, Blackburne Defense | Open Pamplona 26 | 87 | Ver |
| 18 feb 2026 | Merino Olaverri, Jon 2038 | Ruiz Buendia, Miguel 2302 | 0-1 | D00 Queen's Pawn Game: Accelerated London System | Open Pamplona 26 | 32 | Ver |
| 17 feb 2026 | Barcelo Melnyk, Marc 2078 | Ruiz Buendia, Miguel 2302 | 1-0 | B90 Sicilian Defense: Najdorf Variation, English Attack | Open Pamplona 26 | 31 | Ver |
| 16 feb 2026 | Goni Sierro, Jon 2143 | Ruiz Buendia, Miguel 2302 | 1-0 | E71 King's Indian Defense: Makogonov Variation | Open Pamplona 26 | 44 | Ver |
| 15 feb 2026 | Ruiz Buendia, Miguel 2302 | Pedchenko Bondar, Alexandr 2124 | ½-½ | C80 Ruy Lopez: Open, Main Line | Open Pamplona 26 | 31 | Ver |
| 14 feb 2026 | Pascual Garcia, Martin 2055 | Ruiz Buendia, Miguel 2302 | 0-1 | A20 English Opening: King's English Variation | Open Pamplona 26 | 34 | Ver |