| Jul 4, 2026 | Rosen | ½–½ | Oparin | Round 11: Rosen, Eric - Oparin, Grigoriy | Queen's Pawn Game: Accelerated London System | |
| Jul 4, 2026 | Chasin | 1–0 | Oparin | Round 9: Chasin, Nico - Oparin, Grigoriy | Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation | |
| Jul 4, 2026 | Oparin | 0–1 | Sheehan | Round 8: Oparin, Grigoriy - Sheehan, Ethan | English Opening: King's English Variation | |
| Jul 4, 2026 | Ponomariov | 1–0 | Oparin | Round 7: Ponomariov, Ruslan - Oparin, Grigoriy | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jul 4, 2026 | Oparin | 1–0 | Hong | Round 6: Oparin, Grigoriy - Hong, Andrew | Sicilian Defense: Classical Variation | |
| Jul 4, 2026 | Nakamura | ½–½ | Oparin | Round 5: Nakamura, Hikaru - Oparin, Grigoriy | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 4, 2026 | Oparin | ½–½ | Madaminov | Round 4: Oparin, Grigoriy - Madaminov, Mukhiddin | Catalan Opening: Closed | |
| Jul 4, 2026 | Tang | 0–1 | Oparin | Round 3: Tang, Andrew - Oparin, Grigoriy | Queen's Pawn Game: London System, with e6 | |
| Jul 4, 2026 | Oparin | 1–0 | Krishnan | Round 2: Oparin, Grigoriy - Krishnan, Varun | Sicilian Defense: French Variation | |
| Jul 4, 2026 | Johnson | 0–1 | Oparin | Round 1: Johnson, Donald - Oparin, Grigoriy | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Jul 3, 2026 | Aravindh | 1–0 | Oparin | Round 7: Aravindh, Chithambaram VR. - Oparin, Grigoriy | Sicilian Defense: Closed, Traditional | |
| Jul 3, 2026 | Oparin | 1–0 | Zierk | Round 6: Oparin, Grigoriy - Zierk, Steven | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Jul 3, 2026 | Kevlishvili | 0–1 | Oparin | Round 5: Kevlishvili, Robby - Oparin, Grigoriy | Sicilian Defense: Richter-Rauzer Variation, Classical Variation | |
| Jul 3, 2026 | Oparin | ½–½ | Khanin | Round 4: Oparin, Grigoriy - Khanin, Semen | Ruy Lopez: Closed, Delayed Exchange | |
| Jul 3, 2026 | Cordova | ½–½ | Oparin | Round 3: Cordova, Emilio - Oparin, Grigoriy | Queen's Pawn Game: Zukertort Variation | |
| Jul 3, 2026 | Oparin | 1–0 | Escalante Ramirez | Round 2: Oparin, Grigoriy - Escalante Ramirez, Brian | French Defense: Winawer Variation, Retreat Variation, Armenian Line | |
| Jul 3, 2026 | Matta | 0–1 | Oparin | Round 1: Matta, Nicholas - Oparin, Grigoriy | Catalan Opening: Open Defense | |
| Mar 18, 2026 | Yu | 1–0 | Oparin | 2026 Chesscom Open Play In 2 | Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | |
| Mar 18, 2026 | Oparin | 1–0 | Daneshvar | 2026 Chesscom Open Play In 2 | Sicilian Defense: Moscow Variation | |
| Mar 18, 2026 | Oparin | 1–0 | Seemann | 2026 Chesscom Open Play In 2 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Mar 18, 2026 | Gharibyan | 0–1 | Oparin | 2026 Chesscom Open Play In 2 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Mar 18, 2026 | Artemiev | 1–0 | Oparin | 2026 Chesscom Open Play In 2 | Queen's Gambit Declined: Neo-Orthodox Variation, Main Line | |
| Mar 18, 2026 | Oparin | 1–0 | Caruana | 2026 Chesscom Open Play In 2 | Rapport-Jobava System | |
| Mar 18, 2026 | Oparin | 1–0 | Ter-Sahakyan | 2026 Chesscom Open Play In 2 | Sicilian Defense: Moscow Variation | |
| Mar 18, 2026 | Kourkoulos-Arditis | 1–0 | Oparin | 2026 Chesscom Open Play In 2 | Queen's Pawn Game: Accelerated London System | |
| Mar 18, 2026 | Oparin | 1–0 | Malek | 2026 Chesscom Open Play In 2 | French Defense: Chigorin Variation | |
| Mar 16, 2026 | Oparin | 1–0 | Ohanyan | 2026 Chesscom Open Play In 1 | Sicilian Defense: French Variation | |
| Mar 16, 2026 | Vogel | 0–1 | Oparin | 2026 Chesscom Open Play In 1 | Queen's Indian Defense: Capablanca Variation | |
| Mar 16, 2026 | Oparin | 1–0 | Muradli | 2026 Chesscom Open Play In 1 | King's Pawn Game: Leonardis Variation | |
| Mar 16, 2026 | Malek | 0–1 | Oparin | 2026 Chesscom Open Play In 1 | King's Indian Attack: Spassky Variation | |
| Mar 16, 2026 | Oparin | ½–½ | Grandelius | 2026 Chesscom Open Play In 1 | Caro-Kann Defense: Two Knights Attack | |
| Mar 16, 2026 | Vakhidov | ½–½ | Oparin | 2026 Chesscom Open Play In 1 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 16, 2026 | Oparin | 0–1 | Samunenkov | 2026 Chesscom Open Play In 1 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Mar 16, 2026 | Bartel | ½–½ | Oparin | 2026 Chesscom Open Play In 1 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Mar 16, 2026 | Oparin | ½–½ | Gharibyan | 2026 Chesscom Open Play In 1 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Mar 2, 2026 | Oparin | 1–0 | Harsha Bharathakoti | American Cup Blitz | Sicilian Defense: Classical Variation | |
| Mar 2, 2026 | Kevlishvili | ½–½ | Oparin | American Cup Blitz | Caro-Kann Defense: Two Knights Attack | |
| Mar 2, 2026 | Oparin | 1–0 | Kantor | American Cup Blitz | King's Pawn Game: Leonardis Variation | |
| Mar 2, 2026 | Bok | 1–0 | Oparin | American Cup Blitz | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 2, 2026 | Oparin | 1–0 | Kadric | American Cup Blitz | Pirc Defense | |
| Mar 2, 2026 | Kiolbasa | 0–1 | Oparin | American Cup Blitz | Caro-Kann Defense: Advance Variation, Bronstein Variation | |
| Mar 2, 2026 | Oparin | ½–½ | Kacharava | American Cup Blitz | King's Pawn Game: Leonardis Variation | |
| Mar 2, 2026 | Quesada Perez | 1–0 | Oparin | American Cup Blitz | Caro-Kann Defense: Two Knights Attack | |
| Mar 2, 2026 | Oparin | 1–0 | Mikaelyan | American Cup Blitz | Sicilian Defense: Hyperaccelerated Dragon | |
| Mar 1, 2026 | Oparin | ½–½ | Atanasov | Saint Louis Masters | King's Pawn Game: Leonardis Variation | |
| Feb 28, 2026 | Raja Harshit | ½–½ | Oparin | Saint Louis Masters | Caro-Kann Defense: Two Knights Attack | |
| Feb 28, 2026 | Oparin | 1–0 | Bilych | Saint Louis Masters | Ruy Lopez: Closed, Delayed Exchange | |
| Feb 27, 2026 | Pyrih | ½–½ | Oparin | Saint Louis Masters | Zukertort Opening | |
| Feb 26, 2026 | Oparin | ½–½ | Kacharava | Saint Louis Masters | Vienna Game: Mieses Variation | |
| Feb 26, 2026 | Mikaelyan | ½–½ | Oparin | Saint Louis Masters | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Feb 25, 2026 | Oparin | ½–½ | Boyer | Saint Louis Masters | Queen's Gambit Declined: Queen's Knight Variation | |
| Feb 25, 2026 | Cordova | ½–½ | Oparin | Saint Louis Masters | Queen's Pawn Game: Colle System | |
| Nov 6, 2025 | Dardha | ½–½ | Oparin | FIDE World Cup 2025 | Zukertort Opening: Kingside Fianchetto | |
| Nov 6, 2025 | Oparin | 0–1 | Dardha | FIDE World Cup 2025 | Pirc Defense | |
| Nov 5, 2025 | Dardha | ½–½ | Oparin | FIDE World Cup 2025 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Nov 4, 2025 | Oparin | ½–½ | Dardha | FIDE World Cup 2025 | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Sep 15, 2025 | Mamedyarov | 1–0 | Oparin | FIDE Grand Swiss 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Sep 14, 2025 | Oparin | 1–0 | Anton Guijarro | FIDE Grand Swiss 2025 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Sep 13, 2025 | Gurel | ½–½ | Oparin | FIDE Grand Swiss 2025 | Sicilian Defense: Hyperaccelerated Dragon | |
| Sep 12, 2025 | Oparin | 1–0 | Ivanchuk | FIDE Grand Swiss 2025 | French Defense: Winawer Variation, Advance Variation | |
| Sep 11, 2025 | Lagarde | ½–½ | Oparin | FIDE Grand Swiss 2025 | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Sep 9, 2025 | Oparin | ½–½ | Matlakov | FIDE Grand Swiss 2025 | Sicilian Defense: Najdorf Variation | |
| Sep 8, 2025 | Giri | 1–0 | Oparin | FIDE Grand Swiss 2025 | Semi-Slav Defense: Accelerated Move Order | |
| Sep 7, 2025 | Oparin | 1–0 | Najer | FIDE Grand Swiss 2025 | Sicilian Defense: Moscow Variation, Main Line | |
| Sep 6, 2025 | Gumularz | 1–0 | Oparin | FIDE Grand Swiss 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Sep 5, 2025 | Oparin | 1–0 | Daneshvar | FIDE Grand Swiss 2025 | Petrov's Defense: Classical Attack, Staunton Variation | |
| Sep 4, 2025 | Henriquez Villagra | ½–½ | Oparin | FIDE Grand Swiss 2025 | Sicilian Defense: Four Knights Variation | |
| May 31, 2025 | Oparin | ½–½ | Villanueva | Round 11: Oparin, Grigoriy - Villanueva, Mario | English Opening: Agincourt Defense | |
| May 29, 2025 | Oparin | 1–0 | Coro | Round 9: Oparin, Grigoriy - Coro, Lucas | Italian Game: Paris Defense | |
| May 28, 2025 | Martinez Alcantara | ½–½ | Oparin | Round 8: Martinez Alcantara, Jose Eduardo - Oparin, Grigoriy | Sicilian Defense: Alapin Variation, Barmen Defense | |
| May 27, 2025 | Oparin | * | Hungaski | Round 7: Oparin, Grigoriy - Hungaski, Robert | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| May 26, 2025 | Quesada Perez | ½–½ | Oparin | Round 6: Quesada Perez, Luis Ernesto - Oparin, Grigoriy | Queen's Gambit Declined: Barmen Variation | |
| May 26, 2025 | Oparin | ½–½ | Hong | Round 5: Oparin, Grigoriy - Hong, Andrew | Catalan Opening: Open Defense, Classical Line | |
| May 25, 2025 | Salinas Herrera | 0–1 | Oparin | Round 4: Salinas Herrera, Pablo - Oparin, Grigoriy | Nimzo-Indian Defense: St. Petersburg Variation, American Variation | |
| May 24, 2025 | Oparin | 1–0 | Perez Gormaz | Round 3: Oparin, Grigoriy - Perez Gormaz, Matias | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| May 24, 2025 | Silva | * | Oparin | Round 2: Silva, Kaua Marques - Oparin, Grigoriy | ? | |
| May 23, 2025 | Oparin | 1–0 | Prata | Round 1: Oparin, Grigoriy - Prata, Paulo Roberto Santos | English Opening: Agincourt Defense, Bogoljubow Defense | |
| May 23, 2025 | Shankland | 1–0 | Oparin | Round 10: Shankland, Sam - Oparin, Grigoriy | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 19, 2025 | Oparin | ½–½ | Praggnanandhaa R | 2025 Champions Chess Tour Chesscom Classic Playin Matchplay | Italian Game: Giuoco Pianissimo, Normal | |
| May 19, 2025 | Praggnanandhaa R | 1–0 | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Matchplay | English Opening: Agincourt Defense | |
| May 19, 2025 | Le | ½–½ | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Queen's Pawn Game: London System | |
| May 19, 2025 | Yilmaz | 0–1 | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Queen's Indian Defense: Capablanca Variation | |
| May 19, 2025 | Oparin | ½–½ | Lazavik | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| May 19, 2025 | Vidit | 1–0 | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| May 19, 2025 | Artemiev | 0–1 | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Queen's Indian Defense: Kasparov-Petrosian Variation, Andersson Variation | |
| May 19, 2025 | Oparin | 1–0 | Aronian | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Catalan Opening: Open Defense, Classical Line | |
| May 19, 2025 | Oparin | 1–0 | Narayanan | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | King's Indian Attack: Double Fianchetto | |
| May 19, 2025 | Vetoshko | 0–1 | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Sicilian Defense: Smith-Morra Gambit | |
| May 19, 2025 | Caruana | 1–0 | Oparin | 2025 Champions Chess Tour Chesscom Classic Playin Swiss | Nimzo-Larsen Attack: Indian Variation | |
| Apr 21, 2025 | Oparin | ½–½ | Grischuk | Freestyle Chess Open A | ? | |
| Apr 21, 2025 | Grigoriants | 0–1 | Oparin | Freestyle Chess Open A | ? | |
| Apr 20, 2025 | Oparin | 1–0 | Dionisi | Freestyle Chess Open A | ? | |
| Apr 20, 2025 | Pranesh M | 1–0 | Oparin | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Oparin | 1–0 | Yankelevich | Freestyle Chess Open A | ? | |
| Apr 19, 2025 | Noy | 0–1 | Oparin | Freestyle Chess Open A | ? | |
| Apr 18, 2025 | Oparin | 0–1 | Mikhalevski | Round 3: Oparin, Grigoriy - Mikhalevski, Victor | ? | |
| Apr 18, 2025 | Miller | 0–1 | Oparin | Round 2: Miller, Eduard - Oparin, Grigoriy | ? | |
| Apr 17, 2025 | Oparin | 1–0 | Dietze | Round 1: Oparin, Grigoriy - Dietze, Sebastian | ? | |
| Feb 17, 2025 | Oparin | 1–0 | Sanal | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Feb 17, 2025 | Oparin | 1–0 | Chirila | 2025 Champions Chess Tour Chessable Masters Playin Swiss | Anderssen's Opening | |