| Apr 3, 2026 | Papadopoulos | 0–1 | Manukyan | Grenke Chess Festival 2026 Open | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Jan 6, 2026 | Papadopoulos | 0–1 | Toktomushev | 36. Staufer Open 2026 A | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jan 5, 2026 | Weiss | 0–1 | Papadopoulos | 36. Staufer Open 2026 A | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jan 3, 2026 | Papadopoulos | 0–1 | Petrovskiy | 36. Staufer Open 2026 A | Sicilian Defense: Godiva Variation | |
| Jan 2, 2026 | Korneev | ½–½ | Papadopoulos | 36. Staufer Open 2026 A | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Nov 23, 2025 | Papadopoulos | 0–1 | Poetsch | Heusenstamm Sparkassen Open 2025 | Sicilian Defense: Classical Variation | |
| Nov 22, 2025 | Papadopoulos | ½–½ | Stephanblome | Heusenstamm Sparkassen Open 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 22, 2025 | Vranckx | ½–½ | Papadopoulos | Heusenstamm Sparkassen Open 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Nov 9, 2025 | Papadopoulos | 1–0 | Joel Paul Ganta | Round 9: Papadopoulos, Ioannis - Joel Paul Ganta | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 8, 2025 | Kuru | 1–0 | Papadopoulos | Round 8: Kuru, Atilla - Papadopoulos, Ioannis | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Nov 7, 2025 | Papadopoulos | 1–0 | Pradeep | Round 7: Papadopoulos, Ioannis - Pradeep, Harshill | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Nov 4, 2025 | Zelbel | 1–0 | Papadopoulos | Round 4: Zelbel, Patrick - Papadopoulos, Ioannis | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jul 6, 2025 | Harikrishnan.A.Ra | 1–0 | Papadopoulos | La Plagne 5th Edition July 2025 - Master tournament | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Apr 21, 2025 | Fedorovsky | 1–0 | Papadopoulos | Round 8: Fedorovsky, Michael - Papadopoulos, Ioannis | Zukertort Opening: Quiet System | |
| Apr 18, 2025 | Papadopoulos | 0–1 | Schlosser | Round 2: Papadopoulos, Ioannis - Schlosser, Philipp | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jan 2, 2025 | Papadopoulos | 0–1 | Lu | 35. Staufer Open 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 3, 2024 | Papadopoulos | 0–1 | Baenziger | Round 9: Papadopoulos, Ioannis - Baenziger, Fabian | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Nov 2, 2024 | Beikert | 0–1 | Papadopoulos | Round 8: Beikert, Guenther, Dr. - Papadopoulos, Ioannis | Hungarian Opening | |
| Nov 1, 2024 | Papadopoulos | 0–1 | Quparadze | Round 7: Papadopoulos, Ioannis - Quparadze, Giga | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Oct 31, 2024 | Papadopoulos | 1–0 | Zude | Round 6: Papadopoulos, Ioannis - Zude, Arno | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Oct 30, 2024 | Jekel | 0–1 | Papadopoulos | Round 5: Jekel, Wolfgang - Papadopoulos, Ioannis | Anderssen's Opening | |
| Oct 27, 2024 | Papadopoulos | 0–1 | Safarli | Round 2: Papadopoulos, Ioannis - Safarli, Eltaj | Sicilian Defense: Kalashnikov Variation | |
| Nov 21, 2021 | Asadzade | ½–½ | Papadopoulos | Heusenstamm Sparkassen Open 2021 | English Opening: King's English Variation | |
| Nov 20, 2021 | Papadopoulos | 0–1 | Cofmann | Heusenstamm Sparkassen Open 2021 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Nov 19, 2021 | Baltic | ½–½ | Papadopoulos | Heusenstamm Sparkassen Open 2021 | King's Indian Attack | |
| Aug 8, 2021 | Papadopoulos | * | Zaronikas | 30th OPEN Chess International Tournament | ? | |
| Aug 7, 2021 | Tsarsitalidis | * | Papadopoulos | 30th OPEN Chess International Tournament | ? | |
| Aug 6, 2021 | Papadopoulos | * | Kiousi | 30th OPEN Chess International Tournament | ? | |
| Aug 5, 2021 | Paterakis | * | Papadopoulos | 30th OPEN Chess International Tournament | ? | |
| Aug 4, 2021 | Papadopoulos | * | Nikolaev | 30th OPEN Chess International Tournament | ? | |
| Aug 3, 2021 | Chandra | 1–0 | Papadopoulos | 30th OPEN Chess International Tournament | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Aug 2, 2021 | Tsivelekidou | * | Papadopoulos | 30th OPEN Chess International Tournament | ? | |
| Aug 2, 2021 | Kormas | * | Papadopoulos | 30th OPEN Chess International Tournament | ? | |
| Aug 1, 2021 | Papadopoulos | * | Mixakis | 30th OPEN Chess International Tournament | ? | |
| — | Klimkowski | 1–0 | Papadopoulos | Round 8: Klimkowski, Jan - Papadopoulos, Ioannis | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
