| Jun 14, 2026 | Roos | ½–½ | Pucher | Round 4: Roos, Louis - Pucher, Sebastien | King's Indian Attack, with e6 | |
| Jun 13, 2026 | Famel | 0–1 | Roos | Round 3: Famel, Diane - Roos, Louis | Dutch Defense: Raphael Variation | |
| Jun 12, 2026 | Roos | ½–½ | Cassam-Chenai | Round 2: Roos, Louis - Cassam-Chenai, Antoine | King's Indian Attack, with e6 | |
| Jun 11, 2026 | Broly | ½–½ | Roos | Round 1: Broly, Mathilde - Roos, Louis | Queen's Pawn Game: London System | |
| Jun 10, 2026 | Roos | 1–0 | Negre | Round 7: Roos, Louis - Negre, Emilie | King's Indian Attack, with e6 | |
| Jun 8, 2026 | Guichard | 1–0 | Roos | Round 5: Guichard, Pauline - Roos, Louis | Slav Defense: Quiet Variation, Schallopp Defense | |
| Jun 7, 2026 | Roos | 1–0 | Blanquet | Round 4: Roos, Louis - Blanquet, Camille | King's Indian Attack: Spassky Variation | |
| Jun 4, 2026 | Savina | 1–0 | Roos | Round 1: Savina, Anastasia - Roos, Louis | Catalan Opening: Closed | |
| Apr 28, 2026 | Roos | ½–½ | Binham | Round 9: Roos, Louis - Binham, Timothy F. | English Opening: Agincourt Defense, Keres Defense | |
| Apr 27, 2026 | Roos | ½–½ | Kalinitschew | Round 8: Roos, Louis - Kalinitschew, Sergey | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Apr 26, 2026 | Roos | 1–0 | Bykhovsky | Round 7: Roos, Louis - Bykhovsky, Avigdor | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Apr 25, 2026 | Roos | ½–½ | Arnason | Round 6: Roos, Louis - Arnason, Jon L | King's Indian Attack | |
| Apr 22, 2026 | Roos | ½–½ | Gorbatov | Round 4: Roos, Louis - Gorbatov, Alexej | Bogo-Indian Defense: Exchange Variation | |
| Apr 21, 2026 | Lindgren | 0–1 | Roos | Round 3: Lindgren, Mats - Roos, Louis | French Defense: Advance Variation, Euwe Variation | |
| Apr 20, 2026 | Fayard | ½–½ | Roos | Round 2: Fayard, Alain - Roos, Louis | Queen's Gambit Declined: Lasker Defense, Teichmann Variation | |
| Apr 19, 2026 | Roos | 1–0 | Noone | Round 1: Roos, Louis - Noone, Joe | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Nov 1, 2025 | Roos | 1–0 | Nemeth | Round 11: Roos, Louis - Nemeth, Zoltan | King's Indian Attack | |
| Oct 31, 2025 | Syre | ½–½ | Roos | Round 10: Syre, Christian - Roos, Louis | Indian Defense: Wade-Tartakower Defense | |
| Oct 30, 2025 | Roos | ½–½ | Koehler | Round 9: Roos, Louis - Koehler, Gerhard, Dr. | Caro-Kann Defense: Exchange Variation | |
| Oct 29, 2025 | De La Plaza Gras | ½–½ | Roos | Round 8: De La Plaza Gras, Jordi - Roos, Louis | Czech Defense | |
| Oct 28, 2025 | Roos | 1–0 | Schutt | Round 7: Roos, Louis - Schutt, Ricardo de Amorim | Zukertort Opening: Queenside Fianchetto Variation | |
| Oct 26, 2025 | Ernst | ½–½ | Roos | Round 6: Ernst, Michael - Roos, Louis | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 25, 2025 | Roos | ½–½ | Sadiku | Round 5: Roos, Louis - Sadiku, Bedri | Pirc Defense: Classical Variation, Quiet System, Chigorin Line | |
| Oct 24, 2025 | Montero Martinez | 0–1 | Roos | Round 4: Montero Martinez, Cristhian - Roos, Louis | French Defense: King's Indian Attack | |
| Oct 23, 2025 | Roos | 0–1 | Rooze | Round 3: Roos, Louis - Rooze, Jan | Sicilian Defense: Taimanov Variation | |
| Oct 22, 2025 | Brusi Noguera | 0–1 | Roos | Round 2: Brusi Noguera, Ricardo Ll. - Roos, Louis | Queen's Pawn Game: Zukertort Variation | |
| Oct 21, 2025 | Roos | 1–0 | Ilyes | Round 1: Roos, Louis - Ilyes, Peter | Philidor Defense: Lion Variation | |
| Feb 24, 2025 | Large | 1–0 | Roos | World Senior Team 2025 S65 | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Feb 23, 2025 | Snape | ½–½ | Roos | World Senior Team 2025 S65 | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Feb 20, 2025 | Roos | 0–1 | Vucenovic | World Senior Team 2025 S65 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Feb 19, 2025 | Lederman | ½–½ | Roos | World Senior Team 2025 S65 | French Defense: Steinitz Variation | |
| Feb 18, 2025 | Roos | 1–0 | Theon | World Senior Team 2025 S65 | Zukertort Opening: Reversed Grünfeld | |
| Feb 17, 2025 | Benes | 0–1 | Roos | World Senior Team 2025 S65 | King's Indian Attack | |
| Nov 2, 2024 | Roos | ½–½ | Ftacnik | Round 9: Roos, Louis - Ftacnik, Lubomir | Sicilian Defense: Najdorf Variation | |
| Nov 1, 2024 | Burchardt | 0–1 | Roos | Round 8: Burchardt, Brigitte - Roos, Louis | Sicilian Defense: Closed | |
| Oct 31, 2024 | Roos | ½–½ | Moen | Round 7: Roos, Louis - Moen, Ole Christian | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Oct 30, 2024 | Celaya Tapiz | 0–1 | Roos | Round 6: Celaya Tapiz, Jose Maria - Roos, Louis | French Defense: Exchange Variation | |
| Oct 29, 2024 | Roos | 0–1 | Fernandez Garcia | Round 5: Roos, Louis - Fernandez Garcia, Jose Luis | King's Indian Attack: Wahls Defense | |
| Oct 28, 2024 | Pogorelov | ½–½ | Roos | Round 4: Pogorelov, Ruslan - Roos, Louis | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Oct 27, 2024 | Roos | 1–0 | Zimmermann | Round 3: Roos, Louis - Zimmermann, Luc | King's Indian Defense: Orthodox Variation | |
| Oct 26, 2024 | Roos | 1–0 | Miklas | Round 1: Roos, Louis - Miklas, Marian | King's Indian Attack: Sicilian Variation | |
| Oct 26, 2024 | Stoychev | 0–1 | Roos | Round 2: Stoychev, Ognian - Roos, Louis | King's Indian Defense: Orthodox Variation | |
| Jul 11, 2024 | Cocozza | ½–½ | Roos | 65-1 | French Defense: Tarrasch Variation, Open System | |
| Jul 10, 2024 | Roos | ½–½ | Kiefer | 65-1 | King's Indian Attack: Symmetrical Defense | |
| Jul 9, 2024 | Stebbings | 1–0 | Roos | 65-1 | Dutch Defense: Stonewall Variation, Modern Variation | |
| Jul 7, 2024 | Petran | 0–1 | Roos | 65-1 | Hungarian Opening | |
| Jul 6, 2024 | Roos | 1–0 | Littlewood | 65-1 | King's Indian Attack: Symmetrical Defense | |
| Jul 5, 2024 | Maryasin | 0–1 | Roos | 65-1 | French Defense: Steinitz Variation | |
| Jul 4, 2024 | Roos | 1–0 | Hentunen | 65-1 | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 3, 2024 | Hammar | 0–1 | Roos | 65-1 | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Jul 2, 2024 | Roos | 1–0 | Van Kemenade | 65-1 | Zukertort Opening: Pirc Invitation | |
| May 14, 2024 | Maryasin | ½–½ | Roos | European Senior Team Chess Championship 2024 - Section 65 + | French Defense: King's Indian Attack | |
| May 13, 2024 | Plachetka | ½–½ | Roos | European Senior Team Chess Championship 2024 - Section 65 + | Pirc Defense: 150 Attack | |
| May 12, 2024 | Roos | 1–0 | Kosten | European Senior Team Chess Championship 2024 - Section 65 + | Bogo-Indian Defense: Exchange Variation | |
| May 11, 2024 | Hardicsay | ½–½ | Roos | European Senior Team Chess Championship 2024 - Section 65 + | English Opening: Agincourt Defense | |
| May 9, 2024 | Roos | ½–½ | Mikhalchishin | European Senior Team Chess Championship 2024 - Section 65 + | Grünfeld Defense: Three Knights Variation, Petrosian System | |
| May 8, 2024 | Bowmer | 0–1 | Roos | European Senior Team Chess Championship 2024 - Section 65 + | French Defense: Tarrasch Variation, Open System | |
| May 7, 2024 | Roos | 1–0 | Erismann | European Senior Team Chess Championship 2024 - Section 65 + | Zukertort Opening: Sicilian Invitation | |
| Oct 26, 2023 | Roos | * | Braathen | 65+ World Senior Championship | ? | |
| Oct 25, 2023 | Melkeraen | ½–½ | Roos | 65+ World Senior Championship | Grünfeld Defense: Exchange Variation | |
| Jul 20, 2023 | Roos | ½–½ | Olesen | European Senior Team Chess Championship 2023 65+ | Philidor Defense: Larsen Variation | |
| Jul 19, 2023 | Large | ½–½ | Roos | European Senior Team Chess Championship 2023 65+ | Czech Defense | |
| Jul 18, 2023 | Roos | ½–½ | Werner | European Senior Team Chess Championship 2023 65+ | Indian Defense | |
| Jul 17, 2023 | Tompa | ½–½ | Roos | European Senior Team Chess Championship 2023 65+ | Czech Defense | |
| Jul 16, 2023 | Roos | * | Bugajski | European Senior Team Chess Championship 2023 65+ | Réti Opening: Anglo-Slav Variation, New York System | |
| Jul 15, 2023 | Stadnicki | 0–1 | Roos | European Senior Team Chess Championship 2023 65+ | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Jul 14, 2023 | Swierczewski | ½–½ | Roos | European Senior Team Chess Championship 2023 65+ | Czech Defense | |
| Jul 13, 2023 | Roos | ½–½ | Plachetka | European Senior Team Chess Championship 2023 65+ | Queen's Gambit Declined: Barmen Variation | |
| Jul 12, 2023 | Roos | 1–0 | Higgie | European Senior Team Chess Championship 2023 65+ | English Opening: Symmetrical Variation, Duchamp Variation | |
| Nov 15, 2022 | Tsifanskaya | 1–0 | Roos | 30th World Senior Chess Championship 2022 | Pirc Defense | |