| 19 jul 2026 | Barbosa, Oliver 2367 | Paragua, Mark 2403 | 1-0 | E81 Defensa India de Rey: Sämisch Variation, Sämisch Gambit | 14th New York International Super Swiss | 39 | Ver |
| 19 jul 2026 | Tsay, Vincent 2305 | Barbosa, Oliver 2367 | ½-½ | A03 Apertura Bird: Dutch Variation | 14th New York International Super Swiss | 13 | Ver |
| 18 jul 2026 | Barbosa, Oliver 2367 | Lalit Babu M R 2513 | ½-½ | A13 Apertura Inglesa: Agincourt Defense, Catalan Defense Accepted | 14th New York International Super Swiss | 18 | Ver |
| 18 jul 2026 | Prraneeth Vuppala 2502 | Barbosa, Oliver 2367 | 0-1 | B12 Defensa Caro-Kann: Advance Variation, Tal Variation | 14th New York International Super Swiss | 26 | Ver |
| 17 jul 2026 | Barbosa, Oliver 2367 | Molner, Mackenzie 2458 | ½-½ | A35 Apertura Inglesa: Symmetrical Variation, Four Knights Variation | 14th New York International Super Swiss | 15 | Ver |
| 17 jul 2026 | Belenky, Nicholas 2146 | Barbosa, Oliver 2367 | 0-1 | B90 Defensa Siciliana: Najdorf Variation, English Attack | 14th New York International Super Swiss | 49 | Ver |
| 16 jul 2026 | Barbosa, Oliver 2367 | Karthik Venkataraman 2566 | ½-½ | D02 Apertura de Peón de Dama: Symmetrical Variation | 14th New York International Super Swiss | 28 | Ver |
| 15 jul 2026 | Goodrich, Elliott 2120 | Barbosa, Oliver 2367 | ½-½ | B41 Defensa Siciliana: Kan Variation, Maróczy Bind, Réti Variation | 14th New York International Super Swiss | 22 | Ver |
| 12 jul 2026 | Kozower, Ethan 2041 | Barbosa, Oliver 2367 | 0-1 | D13 Defensa Eslava: Exchange Variation | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 59 | Ver |
| 11 jul 2026 | Barbosa, Oliver 2367 | Hoffman, Luc 2182 | 1-0 | D35 Gambito de Dama rehusado: Exchange Variation, Positional Variation | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 43 | Ver |
| 11 jul 2026 | Dushyant Sharma 2353 | Barbosa, Oliver 2367 | ½-½ | B13 Defensa Caro-Kann: Exchange Variation | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 15 | Ver |
| 10 jul 2026 | Barbosa, Oliver 2367 | Paragua, Mark 2403 | ½-½ | D14 Defensa Eslava: Exchange Variation, Symmetrical Line | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 16 | Ver |
| 9 jul 2026 | Miller, Rachel 2010 | Barbosa, Oliver 2367 | 0-1 | B30 Defensa Siciliana: Nyezhmetdinov-Rossolimo Attack | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 28 | Ver |
| 8 jul 2026 | Barbosa, Oliver 2367 | Lyutsinger, Iren 2258 | 0-1 | A45 Ataque Trompowsky | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 55 | Ver |
| 8 jul 2026 | Wongso, Steve 2227 | Barbosa, Oliver 2367 | 0-1 | B50 Defensa Siciliana | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 40 | Ver |
| 7 jul 2026 | Barbosa, Oliver 2367 | Venkatesh, Narayan 2270 | 1-0 | D35 Gambito de Dama rehusado: Exchange Variation, Positional Variation | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 62 | Ver |
| 2 jul 2026 | Barbosa, Oliver 2367 | Titus, Andrew 2239 | 0-1 | D30 Gambito de Dama rehusado | 2026 Marshall Summer Six Day GM/IM Invitational | IM B | 46 | Ver |
| 16 feb 2026 | Barbosa, Oliver 2373 | Goodrich, Elliott 2113 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, King's Indian Formation | 2026 NY President’s Day Invitational | IM A | 16 | Ver |
| 16 feb 2026 | George, Kevin 2345 | Barbosa, Oliver 2373 | 1-0 | B12 Defensa Caro-Kann: Advance Variation, Tal Variation | 2026 NY President’s Day Invitational | IM A | 42 | Ver |
| 15 feb 2026 | Barbosa, Oliver 2373 | Venkatesh, Narayan 2259 | 1-0 | A07 Ataque Indio de Rey: Keres Variation | 2026 NY President’s Day Invitational | IM A | 58 | Ver |