| 20 ago 2026 | Bratovic, Blaz 2330 | Marn, Jan 2357 | 0-1 | C44 King's Knight Opening: Konstantinopolsky | 36th Slovenian Individual Chess Championship 2026 | 48 | Ver |
| 19 ago 2026 | Marn, Jan 2357 | Stevanic, David 2313 | 1-0 | E04 Apertura Catalana: Open Defense | 36th Slovenian Individual Chess Championship 2026 | 55 | Ver |
| 18 ago 2026 | Vidic, Teja 2156 | Marn, Jan 2357 | 0-1 | B41 Defensa Siciliana: Kan Variation | 36th Slovenian Individual Chess Championship 2026 | 112 | Ver |
| 17 ago 2026 | Marn, Jan 2357 | Unuk, Laura 2290 | ½-½ | D26 Gambito de Dama aceptado: Normal Variation, Traditional System | 36th Slovenian Individual Chess Championship 2026 | 54 | Ver |
| 16 ago 2026 | Tratar, Marko 2340 | Marn, Jan 2357 | 1-0 | A05 Ataque Indio de Rey: Symmetrical Defense | 36th Slovenian Individual Chess Championship 2026 | 39 | Ver |
| 16 ago 2026 | Marn, Jan 2357 | Krstic, David 2094 | 1-0 | D31 Gambito de Dama rehusado: Janowski Variation | 36th Slovenian Individual Chess Championship 2026 | 42 | Ver |
| 15 ago 2026 | Keber, Aljosa 2145 | Marn, Jan 2357 | 0-1 | B23 Defensa Siciliana: Closed | 36th Slovenian Individual Chess Championship 2026 | 44 | Ver |
| 14 ago 2026 | Barbot, Pierre 2476 | Marn, Jan 2357 | ½-½ | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | 36th Slovenian Individual Chess Championship 2026 | 21 | Ver |
| 30 jun 2026 | Sebenik, Matej 2483 | Marn, Jan 2389 | ½-½ | E68 Defensa India de Rey: Fianchetto Variation, Classical Variation | Kasparov Chess Foundation Friendship Festival 2026 | 43 | Ver |
| 29 jun 2026 | Marn, Jan 2389 | Subelj, Jan 2565 | 0-1 | D35 Gambito de Dama rehusado: Exchange Variation, Positional Variation | Kasparov Chess Foundation Friendship Festival 2026 | 40 | Ver |
| 26 jun 2026 | Marn, Jan 2389 | Nasuta, Grzegorz 2495 | ½-½ | A48 Ataque Torre: Fianchetto Defense | Kasparov Chess Foundation Friendship Festival 2026 | 52 | Ver |
| 15 may 2026 | Pichot, Alan 2608 | Marn, Jan 2357 | 1-0 | C54 Apertura Italiana: Classical Variation, Giuoco Pianissimo | Grand Prix PlusCity | Open Austrian Championship | Blitz | 26 | Ver |
| 15 may 2026 | Gumularz, Szymon 2546 | Marn, Jan 2357 | 1-0 | D01 Rapport-Jobava System | Grand Prix PlusCity | Open Austrian Championship | Blitz | 35 | Ver |
| 15 may 2026 | Marn, Jan 2357 | Iturrizaga Bonelli, Eduardo 2632 | 0-1 | A47 Pseudo Queen's Indian Defense | Grand Prix PlusCity | Open Austrian Championship | Blitz | 53 | Ver |
| 14 may 2026 | Iturrizaga Bonelli, Eduardo 2591 | Marn, Jan 2303 | 1-0 | A17 Apertura Inglesa: Anglo-Indian Defense, Hedgehog System | Grand Prix PlusCity | Open Austrian Championship | Rapid | 21 | Ver |
| 3 may 2026 | Brilej, Jaka 2392 | Marn, Jan 2384 | ½-½ | A15 Apertura Inglesa: Anglo-Indian Defense, King's Knight Variation | LCF | 53 | Ver |
| 2 may 2026 | Marn, Jan 2384 | Shpanko, Nadiia 2164 | 1-0 | E10 Defensa India: Dzindzi-Indian Defense | LCF | 47 | Ver |
| 1 may 2026 | Stanojevic, Ilija 2239 | Marn, Jan 2384 | ½-½ | A07 Ataque Indio de Rey: Yugoslav Variation | LCF | 105 | Ver |
| 1 may 2026 | Marn, Jan 2384 | Odabasi, Ruzgar 2162 | 1-0 | D02 Apertura de Peón de Dama: London System | LCF | 30 | Ver |
| 30 abr 2026 | Mencinger, Vojko 2278 | Marn, Jan 2384 | ½-½ | A07 King's Indian Attack, with e6 | LCF | 15 | Ver |