| Apr 21, 2026 | Haraguchi | 1–0 | Azevedo Junior | Round 7: Haraguchi, Diego Sashaki - Azevedo Junior, Jose Ferreira | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Apr 20, 2026 | Bueno | ½–½ | Haraguchi | Round 6: Bueno, Alfeu Junior Varela - Haraguchi, Diego Sashaki | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Apr 20, 2026 | Haraguchi | 1–0 | Campelo | Curitiba Chess Open 2026 - Pensado | King's Indian Defense: Makogonov Variation | |
| Apr 19, 2026 | Lima | ½–½ | Haraguchi | Round 4: Lima, Vinicius Taishun - Haraguchi, Diego Sashaki | English Opening: Great Snake Variation | |
| Apr 19, 2026 | Haraguchi | 1–0 | Dos Santos Junior | Curitiba Chess Open 2026 - Pensado | Indian Defense: Anti-Nimzo-Indian | |
| Apr 18, 2026 | Ferreira | 0–1 | Haraguchi | Curitiba Chess Open 2026 - Pensado | Ruy Lopez: Morphy Defense | |
| Apr 18, 2026 | Haraguchi | * | Da Silva | Curitiba Chess Open 2026 - Pensado | English Opening: Agincourt Defense | |
| Jan 29, 2026 | Liascovich | 1–0 | Haraguchi | III Sampa Chess Open - STD | Torre Attack: Classical Defense | |
| Jan 29, 2026 | Haraguchi | 1–0 | Yokota | III Sampa Chess Open - STD | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Jan 21, 2026 | Haraguchi | ½–½ | Ribeiro | Round 11: Haraguchi, Diego Sashaki - Ribeiro, Matheus Mendes Domingues | French Defense: Advance Variation, Paulsen Attack | |
| Jan 21, 2026 | Bieging | 0–1 | Haraguchi | Round 10: Bieging, Luca Jurgen - Haraguchi, Diego Sashaki | Ruy Lopez: Morphy Defense | |
| Jan 21, 2026 | Haraguchi | 0–1 | Do Valle Cardoso | Round 4: Haraguchi, Diego Sashaki - Do Valle Cardoso, Lucas | Sicilian Defense: Moscow Variation, Moscow Gambit | |
| Jan 19, 2026 | Fier | 1–0 | Haraguchi | BCS Floripa - STD | Queen's Gambit Declined: Barmen Variation | |
| Jan 11, 2026 | Haraguchi | 1–0 | Cristino | Brasilia Chess Open 2026 - Torneio STD | Scotch Game: Mieses Variation | |
| Jan 10, 2026 | Cruz | ½–½ | Haraguchi | Brasilia Chess Open 2026 - Torneio STD | Queen's Gambit Declined: Barmen Variation | |
| Jan 9, 2026 | Haraguchi | 1–0 | De Souza | Brasilia Chess Open 2026 - Torneio STD | Catalan Opening: Closed | |
| Jan 9, 2026 | Matsuura | 1–0 | Haraguchi | Brasilia Chess Open 2026 - Torneio STD | Queen's Gambit Declined: Barmen Variation | |
| Jan 8, 2026 | Haraguchi | 1–0 | Navarro | Brasilia Chess Open 2026 - Torneio STD | Sicilian Defense: Hyperaccelerated Dragon | |
| Jan 8, 2026 | Siqueira | 0–1 | Haraguchi | Brasilia Chess Open 2026 - Torneio STD | English Opening: Neo-Catalan | |
| Jan 7, 2026 | Haraguchi | 1–0 | Olivo | Brasilia Chess Open 2026 - Torneio STD | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 25, 2025 | Haraguchi | 0–1 | Salinas Herrera | Round 9: Haraguchi, Diego Sashaki - Salinas Herrera, Pablo | Bogo-Indian Defense: Retreat Variation | |
| Jan 24, 2025 | Do Valle Cardoso | 1–0 | Haraguchi | Round 8: Do Valle Cardoso, Lucas - Haraguchi, Diego Sashaki | Ruy Lopez: Open Berlin Defense, Showalter Variation | |
| Jan 23, 2025 | Haraguchi | 1–0 | Lima | Round 7: Haraguchi, Diego Sashaki - Lima, Stefan Moisei VIeira | Queen's Gambit Declined | |
| Jan 22, 2025 | Hoffman | ½–½ | Haraguchi | Round 6: Hoffman, Alejandro - Haraguchi, Diego Sashaki | Queen's Gambit Declined: Austrian Defense, Gusev Countergambit | |
| Jan 21, 2025 | Haraguchi | 1–0 | Ribeiro | Round 5: Haraguchi, Diego Sashaki - Ribeiro, Matheus Mendes Domingues | Queen's Gambit Accepted: Central Variation, McDonnell Defense | |
