| Mar 5, 2026 | Otsuka | 0–1 | Aarit Kapil | Budapest Spring Festival | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Mar 4, 2026 | Liyanage | 1–0 | Otsuka | Budapest Spring Festival | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 3, 2026 | Otsuka | ½–½ | Panesar Vedant | Budapest Spring Festival | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Mar 2, 2026 | Mosesov | ½–½ | Otsuka | Budapest Spring Festival | Grünfeld Defense: Exchange Variation | |
| Mar 1, 2026 | Otsuka | 1–0 | Uzdemir | Budapest Spring Festival | English Opening: Symmetrical Variation | |
| Feb 28, 2026 | Mandalinic | ½–½ | Otsuka | Budapest Spring Festival | Van Geet Opening | |
| Feb 27, 2026 | Otsuka | ½–½ | Terbe | Budapest Spring Festival | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 31, 2026 | Otsuka | 0–1 | Grover | SixDays February 2026 GM C | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Jan 31, 2026 | Otsuka | ½–½ | Ilkhomi | SixDays February 2026 GM C | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jan 31, 2026 | Otsuka | 1–0 | Shilon Rahav | SixDays February 2026 GM C | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit | |
| Jan 31, 2026 | Otsuka | 1–0 | Senthil Maran K | SixDays February 2026 GM C | Caro-Kann Defense: Exchange Variation | |
| Jan 31, 2026 | Raczek | 1–0 | Otsuka | SixDays February 2026 GM C | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Jan 31, 2026 | Poetsch | 1–0 | Otsuka | SixDays February 2026 GM C | Sicilian Defense: Lasker-Pelikan Variation | |
| Jan 31, 2026 | Krallis | 1–0 | Otsuka | SixDays February 2026 GM C | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 31, 2026 | Kushagra Mohan | 1–0 | Otsuka | SixDays February 2026 GM C | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 31, 2026 | Berczes | 1–0 | Otsuka | SixDays February 2026 GM C | Pseudo Queen's Indian Defense | |
| Jan 24, 2026 | Korobov | 1–0 | Otsuka | Marienbad Open 2026 | Sicilian Defense: Old Sicilian | |
| Jan 23, 2026 | Otsuka | ½–½ | Stefansson | Marienbad Open 2026 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jan 21, 2026 | Heinrich | ½–½ | Otsuka | Marienbad Open 2026 | Nimzo-Indian Defense: Kmoch Variation | |
| Jan 20, 2026 | Otsuka | ½–½ | Dahl | Marienbad Open 2026 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jan 20, 2026 | Itgelt | ½–½ | Otsuka | Marienbad Open 2026 | Indian Defense: Normal Variation | |
| Jan 19, 2026 | Otsuka | ½–½ | Kairbekova | Marienbad Open 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jan 18, 2026 | Besou | 1–0 | Otsuka | Marienbad Open 2026 | Nimzo-Indian Defense: Three Knights Variation | |
| Jan 17, 2026 | Otsuka | 1–0 | Ricken | Marienbad Open 2026 | French Defense: Rubinstein Variation, Blackburne Defense | |
| Jan 17, 2026 | Otsuka | 1–0 | Cvek | Marienbad Open 2026 | Sicilian Defense: Taimanov Variation | |
| Jan 3, 2026 | Seemann | 1–0 | Otsuka | Round 7: Seemann, Jakub - Otsuka, Shou | Tarrasch Defense: Symmetrical Variation | |
| Dec 30, 2025 | Otsuka | 0–1 | Bronstein | Round 4: Otsuka, Shou - Bronstein, Or | English Opening: Agincourt Defense | |
| Dec 29, 2025 | Cieslak | ½–½ | Otsuka | Round 3: Cieslak, Patryk - Otsuka, Shou | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 28, 2025 | Otsuka | ½–½ | Sengupta | Round 2: Otsuka, Shou - Sengupta, Deep | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| Dec 22, 2025 | Krishna C R G | 1–0 | Otsuka | Forintos Memorial GMB | Yusupov-Rubinstein System | |
| Dec 21, 2025 | Otsuka | ½–½ | Gonda | Forintos Memorial GMB | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Dec 19, 2025 | Matyassy | 1–0 | Otsuka | Forintos Memorial GMB | French Defense: McCutcheon Variation, Lasker Variation | |
| Dec 18, 2025 | Otsuka | 0–1 | Munenga | Forintos Memorial GMB | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Dec 17, 2025 | Chan | 0–1 | Otsuka | Forintos Memorial GMB | Benoni Defense: Fianchetto Variation | |
| Dec 16, 2025 | Otsuka | 0–1 | Fodor | Forintos Memorial GMB | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Dec 15, 2025 | Geher | ½–½ | Otsuka | Forintos Memorial GMB | French Defense: Advance Variation, Euwe Variation | |
| Dec 14, 2025 | Otsuka | 0–1 | Willow | Forintos Memorial GMB | French Defense: Exchange Variation | |
| Dec 2, 2025 | Xian | 1–0 | Otsuka | Round 8: Xian, Junhao - Otsuka, Shou | Queen's Gambit Declined: Westphalian Variation | |
| Dec 1, 2025 | Otsuka | 1–0 | Yoon | Round 7: Otsuka, Shou - Yoon, Jacob D | Sicilian Defense: Closed, Chameleon Variation | |
| Nov 30, 2025 | Dignam | ½–½ | Otsuka | Round 6: Dignam, Matthew - Otsuka, Shou | French Defense: Tarrasch Variation, Open System | |
| Nov 30, 2025 | Otsuka | 0–1 | Kanyamarala | Round 5: Otsuka, Shou - Kanyamarala, Trisha | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Nov 29, 2025 | Ghasi | 1–0 | Otsuka | Round 4: Ghasi, Ameet K - Otsuka, Shou | English Opening: Symmetrical Variation, Three Knights Variation | |
| Nov 28, 2025 | Otsuka | 1–0 | Gonzalez Garcia | Forintos Memorial GMB | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Nov 28, 2025 | Otsuka | 1–0 | Farberov | Round 3: Otsuka, Shou - Farberov, Maxim | English Opening: King's English Variation | |
| Nov 28, 2025 | Travadon | 1–0 | Otsuka | Round 2: Travadon, Loic - Otsuka, Shou | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Nov 27, 2025 | Otsuka | 1–0 | Abhyuday | Round 1: Otsuka, Shou - Abhyuday, Santhosh | Zukertort Opening: Pirc Invitation | |
| Sep 1, 2025 | Narayanan | 1–0 | Otsuka | Round 9: Narayanan, Samrug - Otsuka, Shou | Ruy Lopez: Morphy Defense | |
| Jul 24, 2025 | Otsuka | 0–1 | Dau Khuong Duy | Biel Chess Festival 2025 MTO | Sicilian Defense: Alapin Variation, Stoltz Attack | |
| Jul 23, 2025 | Doraszelski | 0–1 | Otsuka | Biel Chess Festival 2025 MTO | French Defense: Classical Variation, Shirov-Anand Variation | |
| Jul 22, 2025 | Otsuka | ½–½ | Georgescu | Biel Chess Festival 2025 MTO | Italian Game: Giuoco Pianissimo, Normal | |
| Jul 21, 2025 | Otsuka | 1–0 | Gut | Biel Chess Festival 2025 MTO | Sicilian Defense: Moscow Variation | |
| Jul 19, 2025 | Shvedova | ½–½ | Otsuka | Biel Chess Festival 2025 MTO | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jul 18, 2025 | Soo | 1–0 | Otsuka | Biel Chess Festival 2025 MTO | Benoni Defense: Fianchetto Variation | |
| Jul 17, 2025 | Otsuka | ½–½ | Pranesh M | Biel Chess Festival 2025 MTO | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 16, 2025 | Otsuka | 1–0 | Yash Abhijit Patil | Biel Chess Festival 2025 MTO | French Defense: Tarrasch Variation, Pawn Center Variation | |
| Jul 15, 2025 | Tureshbayev | ½–½ | Otsuka | Biel Chess Festival 2025 MTO | Sicilian Defense: Kalashnikov Variation | |
| Jul 14, 2025 | Otsuka | 1–0 | Hoffmann | Biel Chess Festival 2025 MTO | Sicilian Defense: Moscow Variation, Main Line | |
| May 15, 2025 | Rozum | 0–1 | Otsuka | Round 9: Rozum, Ivan - Otsuka, Shou | Tarrasch Defense: Symmetrical Variation | |
| May 14, 2025 | Otsuka | 1–0 | Priasmoro | Round 8: Otsuka, Shou - Priasmoro, Novendra | Modern Defense | |
| May 13, 2025 | Quizon | ½–½ | Otsuka | Round 7: Quizon, Daniel - Otsuka, Shou | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| May 12, 2025 | Otsuka | ½–½ | Pang | Round 6: Otsuka, Shou - Pang, Tao | French Defense: Exchange Variation | |
| May 11, 2025 | Fu | 0–1 | Otsuka | Round 5: Fu, Yihe - Otsuka, Shou | French Defense: Advance Variation, Euwe Variation | |
| May 10, 2025 | Otsuka | 0–1 | Vetokhin | Round 4: Otsuka, Shou - Vetokhin, Savva | Sicilian Defense: Moscow Variation | |
| May 9, 2025 | Gan-Erdene | 1–0 | Otsuka | Round 3: Gan-Erdene, Sugar - Otsuka, Shou | French Defense: Steinitz Variation, Boleslavsky Variation | |
| May 8, 2025 | Otsuka | ½–½ | Ayush Sharma | Round 2: Otsuka, Shou - Ayush Sharma | Sicilian Defense: Moscow Variation, Main Line | |
| May 7, 2025 | Makhnev | ½–½ | Otsuka | Round 1: Makhnev, Denis - Otsuka, Shou | Queen's Gambit Declined: Ragozin Defense | |
| Jan 25, 2025 | Kuru | 1–0 | Otsuka | marianky-2025 | Scotch Game: Mieses Variation | |
| Jan 24, 2025 | Otsuka | 1–0 | Besou | marianky-2025 | Sicilian Defense: Old Sicilian | |
| Jan 23, 2025 | Korobov | ½–½ | Otsuka | marianky-2025 | Ruy Lopez: Morphy Defense | |
| Jan 22, 2025 | Otsuka | 0–1 | Baum | marianky-2025 | Pseudo Queen's Indian Defense | |
| Jan 21, 2025 | Otsuka | ½–½ | Lalic | marianky-2025 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jan 21, 2025 | Cvek | ½–½ | Otsuka | marianky-2025 | Zukertort Opening | |
| Jan 20, 2025 | Otsuka | 1–0 | Deuer | marianky-2025 | Caro-Kann Defense: Exchange Variation | |
| Jan 19, 2025 | Harshavardhan G B | 1–0 | Otsuka | marianky-2025 | Tarrasch Defense: Classical Variation | |
| Jan 18, 2025 | Otsuka | ½–½ | Natsidis | marianky-2025 | Sicilian Defense: Kan Variation, Modern Variation | |
| Jan 4, 2025 | Otsuka | 0–1 | Wong | 52nd Rilton Cup | Caro-Kann Defense: Exchange Variation | |
| Jan 3, 2025 | Cieslak | ½–½ | Otsuka | 52nd Rilton Cup | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jan 2, 2025 | Otsuka | 0–1 | Olsson | 52nd Rilton Cup | Ruy Lopez: Open, Main Line | |
| Dec 31, 2024 | Seemann | 1–0 | Otsuka | 52nd Rilton Cup | Italian Game: Giuoco Pianissimo, Normal | |
| Dec 30, 2024 | Otsuka | 1–0 | Trost | 52nd Rilton Cup | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Nov 27, 2024 | Horvath | 1–0 | Otsuka | SixDays Budapest November 2024 IM A | ? | |
| Nov 26, 2024 | Otsuka | 0–1 | To | SixDays Budapest November 2024 IM A | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Nov 26, 2024 | Otsuka | ½–½ | Mahitosh Dey | SixDays Budapest November 2024 IM A | Zukertort Opening: Nimzo-Larsen Variation | |
| Nov 25, 2024 | Otsuka | 0–1 | Nemeth | SixDays Budapest November 2024 IM A | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Nov 25, 2024 | Kolimar | 1–0 | Otsuka | SixDays Budapest November 2024 IM A | Catalan Opening | |
| Nov 24, 2024 | Fodor | 0–1 | Otsuka | SixDays Budapest November 2024 IM A | Nimzo-Indian Defense: Kmoch Variation | |
| Nov 23, 2024 | Otsuka | 1–0 | Krishna C R G | SixDays Budapest November 2024 IM A | French Defense: Exchange Variation | |
| Nov 23, 2024 | Wang | 1–0 | Otsuka | SixDays Budapest November 2024 IM A | Ruy Lopez: Morphy Defense | |
| Nov 22, 2024 | Otsuka | 1–0 | Semprun Martinez | SixDays Budapest November 2024 IM A | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 7, 2024 | Otsuka | 0–1 | Audi Ameya | im | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 6, 2024 | Hak | 0–1 | Otsuka | im | English Opening: Agincourt Defense | |
| Jul 5, 2024 | Otsuka | ½–½ | Nagy | im | Ruy Lopez: Schliemann Defense | |
| Jul 4, 2024 | Marakovits | 1–0 | Otsuka | im | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Jul 3, 2024 | Rakshitta Ravi | 0–1 | Otsuka | im | Four Knights Game: Glek System | |
| Jul 2, 2024 | Otsuka | ½–½ | Mirzoev | im | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jul 2, 2024 | Ernst | 0–1 | Otsuka | im | English Opening: Symmetrical Variation | |
| Jul 1, 2024 | Roshka | 1–0 | Otsuka | im | King's Indian Attack: Sicilian Variation | |
| Jun 30, 2024 | Otsuka | 0–1 | Simek | im | Sicilian Defense: Najdorf Variation, English Attack, Anti-English | |
| Jun 20, 2024 | Xylogiannopoulos | 0–1 | Otsuka | Rigo Janos Memorial IM | Sicilian Defense: Chekhover Variation | |
| Jun 19, 2024 | Otsuka | ½–½ | Borhy | Rigo Janos Memorial IM | Sicilian Defense: Delayed Alapin Variation | |