| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Marn vs A Durakovic |
| 0-1 | 18 | 2016 | Bosna Open | B22 Sicilian, Alapin |
| 2. N Radaca vs J Marn |
| 0-1 | 24 | 2016 | Bosna Open | C45 Scotch Game |
| 3. J Marn vs L Bucevac |
| 0-1 | 21 | 2016 | Bosna Open | B00 Uncommon King's Pawn Opening |
| 4. M Jovovic vs J Marn |
| 1-0 | 28 | 2016 | Bosna Open | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 5. N Medic vs J Marn |
| 0-1 | 34 | 2016 | Bosna Open | D55 Queen's Gambit Declined |
| 6. J Marn vs V Maric |
| 1-0 | 42 | 2016 | Bosna Open | B22 Sicilian, Alapin |
| 7. J Marn vs E Pestek |
| 0-1 | 25 | 2016 | Bosna Open | C02 French, Advance |
| 8. S Haskovic vs J Marn |
| ½-½ | 39 | 2016 | Bosna Open | C45 Scotch Game |
| 9. J Marn vs Z Banduka |
| 0-1 | 16 | 2016 | Bosna Open | B18 Caro-Kann, Classical |
| 10. G Vajic vs J Marn |
| 1-0 | 50 | 2017 | Bosna Open | C54 Giuoco Piano |
| 11. J Marn vs S Pleh |
| 1-0 | 35 | 2017 | Bosna Open | B10 Caro-Kann |
| 12. J Marn vs H Colpa |
| 1-0 | 31 | 2017 | Bosna Open | A56 Benoni Defense |
| 13. J Marn vs Z Lakusic |
| 1-0 | 42 | 2017 | Bosna Open | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 14. Hagawane Aakanksha vs J Marn |
| 1-0 | 41 | 2017 | Bosna Open | C97 Ruy Lopez, Closed, Chigorin |
| 15. A Sukovic vs J Marn |
| 0-1 | 21 | 2017 | Bosna Open | A00 Uncommon Opening |
| 16. J Marn vs N Hodzic |
| 0-1 | 65 | 2017 | Bosna Open | B22 Sicilian, Alapin |
| 17. I Terzic vs J Marn |
| 1-0 | 46 | 2017 | Bosna Open | D58 Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst |
| 18. J Marn vs J B Bjerre |
| 0-1 | 29 | 2021 | Serbia Chess Open | E00 Queen's Pawn Game |
| 19. J Marn vs B Teuschler |
| 1-0 | 39 | 2021 | Serbia Chess Open | A50 Queen's Pawn Game |
| 20. C H Unat vs J Marn |
| ½-½ | 51 | 2021 | Serbia Chess Open | C46 Three Knights |
| 21. M Nubairshah Shaikh vs J Marn |
| ½-½ | 21 | 2021 | Serbia Chess Open | A06 Reti Opening |
| 22. J Marn vs M Stankovic |
| 1-0 | 32 | 2021 | Serbia Chess Open | D85 Grunfeld |
| 23. N Radovanovic vs J Marn |
| 1-0 | 26 | 2021 | Serbia Chess Open | D30 Queen's Gambit Declined |
| 24. A David vs J Marn |
| 1-0 | 50 | 2021 | 19th Spilimbergo Open | A13 English |
| 25. J Marn vs P Pultinevicius |
| 0-1 | 59 | 2022 | European Championship | E51 Nimzo-Indian, 4.e3 |
Kibitzing
