| Jun 28, 2025 | Felgaer | 0–1 | Barrionuevo | Round 6: Felgaer, Ruben - Barrionuevo, Pablo | Sicilian Defense: Moscow Variation, Moscow Gambit | |
| Jun 28, 2025 | Felgaer | 0–1 | Krysa | Round 5: Felgaer, Ruben - Krysa, Leandro | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 27, 2025 | Ccahuancama | 0–1 | Felgaer | Round 4: Ccahuancama, Abraham William - Felgaer, Ruben | Queen's Pawn Game: Symmetrical Variation | |
| Jun 27, 2025 | Asprelli | ½–½ | Felgaer | Round 2: Asprelli, Gaspar - Felgaer, Ruben | Sicilian Defense: Accelerated Dragon, Modern Variation | |
| Jun 23, 2025 | Felgaer | 1–0 | Gatti | Round 1: Felgaer, Ruben - Gatti, Juan Manuel | Sicilian Defense: Dragon Variation, Fianchetto Variation | |
| Apr 25, 2025 | Felgaer | 1–0 | Saez | Round 1: Felgaer, Ruben - Saez, Diego | Philidor Defense: Exchange Variation | |
| Apr 25, 2025 | Felgaer | 1–0 | Perelman | Round 3: Felgaer, Ruben - Perelman, Hernan | Philidor Defense: Lion Variation | |
| Apr 25, 2025 | Felgaer | 1–0 | Tempone | Round 5: Felgaer, Ruben - Tempone, Marcelo | Petrov's Defense: Paulsen Attack | |
| Apr 25, 2025 | Felgaer | 1–0 | Alonso | Round 7: Felgaer, Ruben - Alonso, Salvador | Sicilian Defense: Scheveningen Variation, Fianchetto Variation | |
| Apr 25, 2025 | Felgaer | 1–0 | Dolezal | Round 8: Felgaer, Ruben - Dolezal, Cristian | French Defense: Knight Variation | |
| Apr 25, 2025 | Soria | 0–1 | Felgaer | Round 2: Soria, Angel - Felgaer, Ruben | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Apr 25, 2025 | Villegas | 1–0 | Felgaer | Round 4: Villegas, Franco - Felgaer, Ruben | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 25, 2025 | Varela | 0–1 | Felgaer | Round 6: Varela, Agustin - Felgaer, Ruben | Czech Defense | |
| Apr 25, 2025 | Barrionuevo | 0–1 | Felgaer | Round 9: Barrionuevo, Pablo - Felgaer, Ruben | Queen's Pawn Game: Accelerated London System | |
| Sep 13, 2024 | Wojtaszek | 1–0 | Felgaer | 45th FIDE Chess Olympiad | Slav Defense: Czech Variation, Krause Attack | |
| Sep 11, 2024 | Ormsby | ½–½ | Felgaer | 45th FIDE Chess Olympiad | Queen's Pawn Game: Accelerated London System | |
| Mar 30, 2024 | Felgaer | 1–0 | Needleman | Round 9: Felgaer, Ruben - Needleman, Alejandro | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Mar 29, 2024 | Acosta | 1–0 | Felgaer | Round 8: Acosta, Pablo Ismael - Felgaer, Ruben | English Opening: Symmetrical Variation, Normal Variation | |
| Mar 28, 2024 | Felgaer | ½–½ | Christiansen | Round 7: Felgaer, Ruben - Christiansen, Johan-Sebastian | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Mar 27, 2024 | Romero Barreto | 0–1 | Felgaer | Round 6: Romero Barreto, Jaime Jose - Felgaer, Ruben | Sicilian Defense: French Variation | |
| Mar 26, 2024 | Felgaer | 1–0 | Caruso | Round 5: Felgaer, Ruben - Caruso, Tomas | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Mar 25, 2024 | Villegas | ½–½ | Felgaer | Round 4: Villegas, Franco - Felgaer, Ruben | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Mar 24, 2024 | Felgaer | 1–0 | Amura | Round 3: Felgaer, Ruben - Amura, Claudia | Sicilian Defense: Kalashnikov Variation | |
| Mar 24, 2024 | Dubrovich | 0–1 | Felgaer | Round 2: Dubrovich, Igor - Felgaer, Ruben | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Mar 23, 2024 | Felgaer | 1–0 | Barreira Vesco | Round 1: Felgaer, Ruben - Barreira Vesco, Ulises | Scandinavian Defense: Portuguese Gambit | |
| Feb 25, 2024 | Amura | 0–1 | Felgaer | Round 7: Amura, Claudia - Felgaer, Ruben | Slav Defense: Exchange Variation, Symmetrical Line | |
| Feb 24, 2024 | Llanos | ½–½ | Felgaer | Round 5: Llanos, Guillermo - Felgaer, Ruben | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Feb 24, 2024 | Felgaer | 0–1 | Spata | Round 4: Felgaer, Ruben - Spata, German | Caro-Kann Defense: Tartakower Variation | |
| Feb 23, 2024 | Asprelli | 0–1 | Felgaer | Round 3: Asprelli, Gaspar - Felgaer, Ruben | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Feb 23, 2024 | Felgaer | 1–0 | Angelini | Round 2: Felgaer, Ruben - Angelini, Diego | Sicilian Defense: Najdorf Variation | |
| Feb 22, 2024 | Bona | 0–1 | Felgaer | Round 1: Bona, Luca Jesus - Felgaer, Ruben | Queen's Pawn Game: Accelerated London System | |
| Sep 10, 2021 | Felgaer | 1–0 | Stalmach | Online_Olympiad_Div1_PoolC | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Sep 9, 2021 | Moroni | 1–0 | Felgaer | Online_Olympiad_Div1_PoolC | Queen's Pawn Game: London System | |
| Sep 4, 2021 | Borisek | 1–0 | Felgaer | Online_Olympiad_Div2_PoolD | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Sep 4, 2021 | Vivas Zamora | 0–1 | Felgaer | Online_Olympiad_Div2_PoolD | English Opening: Symmetrical Variation | |
| Sep 3, 2021 | Felgaer | 1–0 | JanMeyerVerhoef | Online_Olympiad_Div2_PoolD | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Sep 2, 2021 | Felgaer | 1–0 | IMKarimIsmael | Online_Olympiad_Div2_PoolD | Sicilian Defense: Classical Variation, Fianchetto Variation | |