| Jun 27, 2026 | Sobolev | 0–1 | Oishik Mondal | Round 11: Sobolev, Lev Yu. - Oishik Mondal | Sicilian Defense: Moscow Variation | |
| Jun 26, 2026 | Filipovs | ½–½ | Oishik Mondal | Round 10: Filipovs, Sergejs - Oishik Mondal | Sicilian Defense: Moscow Variation | |
| Jun 25, 2026 | Oishik Mondal | 1–0 | Tenuun | Round 9: Oishik Mondal - Tenuun, Tseesuren | Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | |
| Jun 24, 2026 | Alexandrakis | 0–1 | Oishik Mondal | Round 8: Alexandrakis, Vasileios Sp - Oishik Mondal | Sicilian Defense: Czerniak Attack | |
| Jun 23, 2026 | Oishik Mondal | 0–1 | Andronic | FIDE World Cadets Cup, O12 | Trompowsky Attack | |
| Jun 21, 2026 | Oishik Mondal | ½–½ | Chkhartishvili | Round 6: Oishik Mondal - Chkhartishvili, Lazare | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 20, 2026 | Tulegen | 1–0 | Oishik Mondal | Round 5: Tulegen, Ramazan - Oishik Mondal | Sicilian Defense: Lasker-Pelikan Variation | |
| Jun 19, 2026 | Oishik Mondal | 1–0 | Dwidar | Round 4: Oishik Mondal - Dwidar, Youssef | Queen's Gambit Declined: Ragozin Defense | |
| Jun 18, 2026 | Shangin | 1–0 | Oishik Mondal | Round 3: Shangin, Lev - Oishik Mondal | Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation | |
| Jun 17, 2026 | Nemsitsveridze | 0–1 | Oishik Mondal | Round 2: Nemsitsveridze, Luka - Oishik Mondal | Indian Defense: London System | |
| Jun 16, 2026 | Oishik Mondal | 1–0 | Sakhokia | Round 1: Oishik Mondal - Sakhokia, Luka | Queen's Gambit Declined: Three Knights Variation | |
| May 24, 2026 | Mutyalapati | 1–0 | Oishik Mondal | Round 8: Mutyalapati, Modith Aaroh - Oishik Mondal | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| May 23, 2026 | Oishik Mondal | ½–½ | Kiringoda | Round 7: Oishik Mondal - Kiringoda, Thehas Rithmitha | Queen's Gambit Declined: Harrwitz Attack | |
| Oct 1, 2025 | Badole Shaunak | 1–0 | Oishik Mondal | Round 11: Badole Shaunak - Oishik Mondal | Sicilian Defense: Najdorf Variation, Main Line | |
| Sep 30, 2025 | Sattwik Swain | ½–½ | Oishik Mondal | Round 11: Sattwik Swain - Oishik Mondal | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Sep 29, 2025 | Oishik Mondal | 0–1 | Elemes | Round 10: Oishik Mondal - Elemes, Nurmukhamed | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation | |
| Sep 28, 2025 | Nidhish Shyamal | 0–1 | Oishik Mondal | Round 9: Nidhish Shyamal - Oishik Mondal | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |
| Sep 27, 2025 | Oishik Mondal | 1–0 | Nurshin | Round 8: Oishik Mondal - Nurshin, Nurali | Indian Defense: King's Indian Variation, Fianchetto Variation | |
| Sep 26, 2025 | Chkhartishvili | 0–1 | Oishik Mondal | Round 7: Chkhartishvili, Lazare - Oishik Mondal | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Sep 24, 2025 | Oishik Mondal | 1–0 | Baghmanyan | Round 6: Oishik Mondal - Baghmanyan, Hakob | Queen's Gambit Accepted: Old Variation | |
| Sep 23, 2025 | Guo | 1–0 | Oishik Mondal | Round 5: Guo, Ziming - Oishik Mondal | Benko Gambit Accepted: Modern Variation | |
| Sep 22, 2025 | Oishik Mondal | ½–½ | Pham | Round 4: Oishik Mondal - Pham, Han Nam | Tarrasch Defense: Two Knights Variation | |
| Sep 21, 2025 | Mendili | ½–½ | Oishik Mondal | Round 3: Mendili,Jahed - Oishik Mondal | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Sep 20, 2025 | Oishik Mondal | 1–0 | Ok | Round 2: Oishik Mondal - Ok, Miro | King's Indian Defense: Fianchetto Variation, Classical Fianchetto | |
| Sep 19, 2025 | Darkhanuly | 0–1 | Oishik Mondal | Round 1: Darkhanuly, Kaisar - Oishik Mondal | Indian Defense | |
| Jul 2, 2025 | Mani | * | Oishik Mondal | Tiebreak Rapid: Mani, Sarbartho - Oishik Mondal | Queen's Indian Defense: Spassky System | |
| Jun 30, 2025 | Oishik Mondal | ½–½ | Mani | Game 2: Oishik Mondal - Mani, Sarbartho | Queen's Gambit Declined: Orthodox Defense, Main Line | |
| Jun 30, 2025 | Mani | ½–½ | Oishik Mondal | Game 1: Mani, Sarbartho - Oishik Mondal | Sicilian Defense: Grand Prix Attack | |
| Jun 30, 2025 | Mani | * | Oishik Mondal | Tiebreak Rapid: Mani, Sarbartho - Oishik Mondal | Queen's Indian Defense: Spassky System | |
| Jun 29, 2025 | Oishik Mondal | 1–0 | Paragiri | Round 7: Oishik Mondal - Paragiri, Reyansh | Semi-Slav Defense: Accelerated Move Order | |
| Jun 28, 2025 | Nidhish Shyamal | ½–½ | Oishik Mondal | Round 6: Nidhish Shyamal - Oishik Mondal | Blumenfeld Countergambit Accepted | |
| Jun 27, 2025 | Oishik Mondal | ½–½ | Aarit Kapil | Round 5: Oishik Mondal - Aarit Kapil | Queen's Gambit Accepted: Old Variation | |
| Jun 26, 2025 | BAYEFA | 0–1 | Oishik Mondal | Round 4: BAYEFA, Oyeinkeperemo - Oishik Mondal | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 25, 2025 | Oishik Mondal | 1–0 | Manchanda | Round 3: Oishik Mondal - Manchanda, Advik | Semi-Slav Defense: Chigorin Defense | |
| Jun 24, 2025 | Ioseliani | 0–1 | Oishik Mondal | Round 2: Ioseliani, Giorgi - Oishik Mondal | Sicilian Defense: Old Sicilian | |
| Jun 23, 2025 | Oishik Mondal | 1–0 | Pinskiy | Round 1: Oishik Mondal - Pinskiy, German Ant | Queen's Gambit Declined: Cambridge Springs Defense, Bogoljubow Variation | |
| May 19, 2024 | Uddipan Roy | 1–0 | Oishik Mondal | Round 8: Uddipan Roy - Oishik Mondal | Sicilian Defense: Chekhover Variation | |
| May 18, 2024 | Shuvam Roy | 1–0 | Oishik Mondal | Round 6: Shuvam Roy - Oishik Mondal | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| May 18, 2024 | Oishik Mondal | ½–½ | Chatterjee | Round 5: Oishik Mondal - Chatterjee, K.K. | Sicilian Defense: Kan Variation, Knight Variation | |
| Apr 12, 2024 | Utsab Chatterjee | 1–0 | Oishik Mondal | Round 3: Utsab Chatterjee - Oishik Mondal | Sicilian Defense: Najdorf Variation | |
| Apr 1, 2024 | Oishik Mondal | ½–½ | Utsab Chatterjee | Round 3: Oishik Mondal - Utsab Chatterjee | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Oct 24, 2024 | Abhishek T M | 1–0 | Oishik Mondal | Round 6: Abhishek T M - Oishik Mondal | Nimzo-Larsen Attack: Indian Variation | |
| Oct 23, 2024 | Oishik Mondal | ½–½ | Ravi Krishna G | Round 4: Oishik Mondal - Ravi Krishna G | Sicilian Defense: Four Knights Variation | |
| Aug 26, 2024 | Oishik Mondal | 0–1 | Sagnik Halder | Round 11: Oishik Mondal - Sagnik Halder | Tarrasch Defense: Dubov Tarrasch | |
| Aug 22, 2024 | Subhayan Kundu | 1–0 | Oishik Mondal | Round 3: Subhayan Kundu - Oishik Mondal | Caro-Kann Defense: Panov Attack, Modern Defense, Carlsbad Line | |
| Aug 5, 2024 | Daksh Goyal | 1–0 | Oishik Mondal | Round 4: Daksh Goyal - Oishik Mondal | King's Indian Attack: Symmetrical Defense | |
| — | Oishik Mondal | 1–0 | Antarip Acharya | 38th National Under 11 Open & Girls 2025 | Queen's Gambit Declined: Ragozin Defense | |
| — | Oishik Mondal | ½–½ | Vibhor Chopra | 38th National Under 11 Open & Girls 2025 | Rapport-Jobava System | |
| — | Oishik Mondal | 1–0 | Sanikommu Jaideep Reddy | 38th National Under 11 Open & Girls 2025 | Old Indian Defense | |
| — | Oishik Mondal | 1–0 | Dhruv Gupta | 38th National Under 11 Open & Girls 2025 | Queen's Indian Defense: Fianchetto Variation, Nimzowitsch Variation, Quiet Line | |
| — | Oishik Mondal | ½–½ | Mani | 38th National Under 11 Open & Girls 2025 | Semi-Slav Defense: Main Line | |
| — | Satya Swarup Tripathy | 0–1 | Oishik Mondal | 38th National Under 11 Open & Girls 2025 | Sicilian Defense: Grand Prix Attack | |
| — | Caleb Vihaan John | 0–1 | Oishik Mondal | 38th National Under 11 Open & Girls 2025 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| — | Advik Amit Agrawal | ½–½ | Oishik Mondal | 38th National Under 11 Open & Girls 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| — | Aarit Kapil | ½–½ | Oishik Mondal | 38th National Under 11 Open & Girls 2025 | Catalan Opening: Open Defense, Classical Line | |
| — | Abhinav Anand | 0–1 | Oishik Mondal | 38th National Under 11 Open & Girls 2025 | Catalan Opening: Open Defense, Classical Line | |
