| Apr 6, 2026 | Duong | 0–1 | De Winter | Round 9: Duong, Quang Bach - De Winter, Arthur | ? | |
| Apr 6, 2026 | Kaczur | 1–0 | Duong | Round 8: Kaczur, Florian - Duong, Quang Bach | ? | |
| Apr 5, 2026 | Duong | 1–0 | Mons | Round 7: Duong, Quang Bach - Mons, Leon | ? | |
| Apr 4, 2026 | Duong | 0–1 | Meier | Round 5: Duong, Quang Bach - Meier, Georg | ? | |
| Apr 3, 2026 | Duong | 0–1 | Grieve | Round 3: Duong, Quang Bach - Grieve, Harry | ? | |
| Apr 3, 2026 | Wagner | ½–½ | Duong | Round 2: Wagner, Dennis - Duong, Quang Bach | ? | |
| Jan 4, 2026 | Duong | 0–1 | Lumachi | 36. Staufer Open 2026 A | Four Knights Game: Spanish Variation | |
| Jan 4, 2026 | Holtel | ½–½ | Duong | 36. Staufer Open 2026 A | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Jan 2, 2026 | Duong | 0–1 | Harsh Suresh | 36. Staufer Open 2026 A | Pirc Defense: Austrian Attack, Weiss Variation | |
| Dec 31, 2025 | Glek | * | Duong | Round 9: Glek, Igor - Duong, Quang Bach | ? | |
| Dec 30, 2025 | Durak | 0–1 | Duong | Round 7: Durak, Can - Duong, Quang Bach | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| Dec 29, 2025 | Duong | ½–½ | Sundar M. Shyam | Round 6: Duong, Quang Bach - Sundar M. Shyam | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Dec 28, 2025 | Zaur Hasanov | 1–0 | Duong | Round 4: Zaur Hasanov - Duong, Quang Bach | Grünfeld Defense: Exchange Variation, Modern Exchange Variation, Kramnik's Line | |
| Dec 27, 2025 | Duong | 0–1 | Parvanyan | Round 3: Duong, Quang Bach - Parvanyan, Ashot | Four Knights Game: Spanish Variation | |
| Dec 27, 2025 | Ashwath S | 1–0 | Duong | Round 2: Ashwath S - Duong, Quang Bach | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Dec 26, 2025 | Duong | 0–1 | Stoettner | Round 1: Duong, Quang Bach - Stoettner, Moritz | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Dec 25, 2025 | Duong | 0–1 | Miller | Round 5: Duong, Quang Bach - Miller, Eduard | Caro-Kann Defense: Tartakower Variation | |
| Oct 3, 2025 | Duong | 0–1 | Semling | Deutsche Ländermeisterschaft 2025 | Nimzo-Indian Defense: Normal Variation | |
| Oct 2, 2025 | Weber | 0–1 | Duong | Deutsche Ländermeisterschaft 2025 | Zukertort Opening: Nimzo-Larsen Variation | |
| Oct 1, 2025 | Duong | 1–0 | Noennig | Deutsche Ländermeisterschaft 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 1, 2025 | Eberle | ½–½ | Duong | Deutsche Ländermeisterschaft 2025 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Jun 15, 2025 | Duong | 0–1 | Krasenkow | Finale & Spiel um Platz 3 - Final & Game for 3rd place: Duong, Quang Bach - Krasenkow, Michal | Modern Defense: Standard Line | |
| Jun 14, 2025 | Fedorchuk | 1–0 | Duong | Halbfinals - Semifinals: Fedorchuk, Sergey A. - Duong, Quang Bach | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations | |
| Jan 6, 2025 | Duong | 1–0 | Senthil Maran K | 35. Staufer Open 2025 | Caro-Kann Defense: Tartakower Variation | |
| Jan 4, 2025 | Meissner | 1–0 | Duong | 35. Staufer Open 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| May 25, 2024 | Duong | ½–½ | Pikalow | DEM U18 2024 | Benko Gambit Accepted: Fully Accepted Variation | |
| May 24, 2024 | Hoffmann | ½–½ | Duong | DEM U18 2024 | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| May 23, 2024 | Duong | 0–1 | Foksha | DEM U18 2024 | Sicilian Defense: Najdorf Variation | |
| May 22, 2024 | Duong | 0–1 | Vortmeier | DEM U18 2024 | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| May 22, 2024 | Hecht | 1–0 | Duong | DEM U18 2024 | Scotch Game: Mieses Variation | |
| May 21, 2024 | Demchenko | 0–1 | Duong | DEM U18 2024 | Queen's Pawn Game: London System | |
| May 20, 2024 | Duong | 0–1 | Bilovil | DEM U18 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| May 19, 2024 | Duong | ½–½ | Storm | DEM U18 2024 | French Defense: Tarrasch Variation, Morozevich Variation | |
| May 19, 2024 | Prieb | 0–1 | Duong | DEM U18 2024 | Queen's Gambit Declined: Three Knights Variation | |
| — | Duong | 1–0 | Bunk | Round 1: Duong, Quang Bach - Bunk, Wolfgang | Scandinavian Defense: Main Line, Mieses Variation | |
| — | Duong | 0–1 | Schulz | Round 4: Duong, Quang Bach - Schulz, Lukas | Sicilian Defense: Old Sicilian | |
| — | Duong | 1–0 | Weichlein | Round 5: Duong, Quang Bach - Weichlein, Paul | Sicilian Defense: Moscow Variation, Sokolsky Variation | |
| — | Duong | ½–½ | Lentrodt | Round 7: Duong, Quang Bach - Lentrodt, Thomas | French Defense: McCutcheon Variation, Lasker Variation | |
| — | Duong | ½–½ | Aumueller | Round 9: Duong, Quang Bach - Aumueller, Naum | King's Indian Defense: Semi-Averbakh System | |
| — | Hoeller | 0–1 | Duong | Round 2: Hoeller, Armin - Duong, Quang Bach | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| — | Englert | ½–½ | Duong | Round 3: Englert, Fabian - Duong, Quang Bach | King's Indian Defense: Normal Variation, King's Knight Variation | |
| — | Demchenko | ½–½ | Duong | Round 6: Demchenko, Yaroslav - Duong, Quang Bach | Sicilian Defense: Prins Variation | |
| — | Goldbeck | 1–0 | Duong | Round 8: Goldbeck, Lars - Duong, Quang Bach | Grünfeld Defense: Exchange Variation | |