| 14 jun 2026 | Roos, Louis 2285 | Pucher, Sebastien 2160 | ½-½ | A07 King's Indian Attack, with e6 | Championnat de France des Clubs 2026 | Poule Basse | 21 | Ver |
| 12 jun 2026 | Roos, Louis 2285 | Cassam-Chenai, Antoine 2325 | ½-½ | A07 King's Indian Attack, with e6 | Championnat de France des Clubs 2026 | Poule Basse | 30 | Ver |
| 11 jun 2026 | Broly, Mathilde 2046 | Roos, Louis 2285 | ½-½ | D02 Apertura de Peón de Dama: London System | Championnat de France des Clubs 2026 | Poule Basse | 31 | Ver |
| 10 jun 2026 | Roos, Louis 2285 | Negre, Emilie 2075 | 1-0 | A07 King's Indian Attack, with e6 | Championnat de France des Clubs 2026 | Elimination | Groupe B | 45 | Ver |
| 8 jun 2026 | Guichard, Pauline 2335 | Roos, Louis 2285 | 1-0 | D12 Defensa Eslava: Quiet Variation, Schallopp Defense | Championnat de France des Clubs 2026 | Elimination | Groupe B | 36 | Ver |
| 7 jun 2026 | Roos, Louis 2285 | Blanquet, Camille 2159 | 1-0 | A05 Ataque Indio de Rey: Spassky Variation | Championnat de France des Clubs 2026 | Elimination | Groupe B | 30 | Ver |
| 4 jun 2026 | Savina, Anastasia 2349 | Roos, Louis 2285 | 1-0 | E06 Apertura Catalana: Closed | Championnat de France des Clubs 2026 | Elimination | Groupe B | 28 | Ver |
| 28 abr 2026 | Roos, Louis 2275 | Binham, Timothy F. 2208 | ½-½ | A14 Apertura Inglesa: Agincourt Defense, Keres Defense | FIDE World Senior Team Championships 2026 - Senior 65+ | 79 | Ver |
| 27 abr 2026 | Roos, Louis 2275 | Kalinitschew, Sergey 2374 | ½-½ | A17 Apertura Inglesa: Anglo-Indian Defense, Hedgehog System | FIDE World Senior Team Championships 2026 - Senior 65+ | 47 | Ver |
| 26 abr 2026 | Roos, Louis 2275 | Bykhovsky, Avigdor 2315 | 1-0 | D00 Apertura de Peón de Dama: Accelerated London System, Steinitz Countergambit | FIDE World Senior Team Championships 2026 - Senior 65+ | 45 | Ver |
| 25 abr 2026 | Roos, Louis 2275 | Arnason, Jon L 2407 | ½-½ | A05 Ataque Indio de Rey | FIDE World Senior Team Championships 2026 - Senior 65+ | 46 | Ver |
| 22 abr 2026 | Roos, Louis 2275 | Gorbatov, Alexej 2290 | ½-½ | E11 Defensa Bogoindia: Exchange Variation | FIDE World Senior Team Championships 2026 - Senior 65+ | 37 | Ver |
| 21 abr 2026 | Lindgren, Mats 2020 | Roos, Louis 2275 | 0-1 | C02 Defensa Francesa: Advance Variation, Euwe Variation | FIDE World Senior Team Championships 2026 - Senior 65+ | 32 | Ver |
| 20 abr 2026 | Fayard, Alain 2181 | Roos, Louis 2275 | ½-½ | D56 Gambito de Dama rehusado: Lasker Defense, Teichmann Variation | FIDE World Senior Team Championships 2026 - Senior 65+ | 48 | Ver |
| 1 nov 2025 | Roos, Louis 2285 | Nemeth, Zoltan 2115 | 1-0 | A05 Ataque Indio de Rey | FIDE World Senior Championship 2025 | Open 65+ | 39 | Ver |
| 31 oct 2025 | Syre, Christian 2146 | Roos, Louis 2285 | ½-½ | A46 Defensa India: Wade-Tartakower Defense | FIDE World Senior Championship 2025 | Open 65+ | 48 | Ver |
| 30 oct 2025 | Roos, Louis 2285 | Koehler, Gerhard, Dr. 2142 | ½-½ | B13 Defensa Caro-Kann: Exchange Variation | FIDE World Senior Championship 2025 | Open 65+ | 51 | Ver |
| 29 oct 2025 | De La Plaza Gras, Jordi 2002 | Roos, Louis 2285 | ½-½ | B07 Czech Defense | FIDE World Senior Championship 2025 | Open 65+ | 42 | Ver |
| 28 oct 2025 | Roos, Louis 2285 | Schutt, Ricardo de Amorim 2099 | 1-0 | A04 Apertura Zukertort: Queenside Fianchetto Variation | FIDE World Senior Championship 2025 | Open 65+ | 32 | Ver |
| 26 oct 2025 | Ernst, Michael 2088 | Roos, Louis 2285 | ½-½ | D35 Gambito de Dama rehusado: Exchange Variation, Positional Variation | FIDE World Senior Championship 2025 | Open 65+ | 18 | Ver |