| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. Ivan Zhuk vs J Marn |
| 0-1 | 32 | 2022 | European Rapid Chess Championship | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
| 52. J Marn vs M Sebenik |
| ½-½ | 59 | 2022 | European Rapid Chess Championship | D05 Queen's Pawn Game |
| 53. L Moroni Jr vs J Marn |
| 1-0 | 54 | 2022 | European Rapid Chess Championship | D02 Queen's Pawn Game |
| 54. J Marn vs G P Jonsson |
| 1-0 | 47 | 2022 | European Rapid Chess Championship | A48 King's Indian |
| 55. J Marn vs M Ondozi |
| 1-0 | 57 | 2022 | European Rapid Chess Championship | D02 Queen's Pawn Game |
| 56. D Akhmedov vs J Marn |
| ½-½ | 73 | 2023 | Serbia Open Masters | C45 Scotch Game |
| 57. J Marn vs S Pogorelskikh |
| ½-½ | 48 | 2023 | Serbia Open Masters | E04 Catalan, Open, 5.Nf3 |
| 58. V Singhania vs J Marn |
| 1-0 | 26 | 2023 | Serbia Open Masters | C50 Giuoco Piano |
| 59. J Marn vs K Stefanou |
| 1-0 | 48 | 2023 | Serbia Open Masters | D02 Queen's Pawn Game |
| 60. T Mandura vs J Marn |
| ½-½ | 41 | 2023 | Serbia Open Masters | C46 Three Knights |
| 61. J Marn vs D Pantovic |
| 1-0 | 43 | 2023 | Serbia Open Masters | A80 Dutch |
| 62. N Hercegovac vs J Marn |
| 0-1 | 35 | 2023 | Serbia Open Masters | C53 Giuoco Piano |
| 63. J Marn vs A Zhukov |
| 0-1 | 43 | 2023 | Serbia Open Masters | E17 Queen's Indian |
| 64. M Krstic vs J Marn |
| 0-1 | 61 | 2023 | Serbia Open Masters | C53 Giuoco Piano |
| 65. J Marn vs A Christodoulaki |
| 1-0 | 43 | 2023 | Rilton Cup 2023/24 | E06 Catalan, Closed, 5.Nf3 |
| 66. Romanishin vs J Marn |
| ½-½ | 64 | 2023 | Rilton Cup 2023/24 | D73 Neo-Grunfeld, 5.Nf3 |
| 67. J Marn vs A Pasti |
| ½-½ | 31 | 2023 | Rilton Cup 2023/24 | E06 Catalan, Closed, 5.Nf3 |
| 68. W Olsson vs J Marn |
| 1-0 | 52 | 2023 | Rilton Cup 2023/24 | E01 Catalan, Closed |
| 69. J Marn vs S Wadhwa |
| 1-0 | 31 | 2023 | Rilton Cup 2023/24 | A05 Reti Opening |
| 70. J Marn vs P Bailet |
| 0-1 | 53 | 2024 | Rilton Cup 2023/24 | D02 Queen's Pawn Game |
| 71. J Marn vs C Krishna |
| ½-½ | 137 | 2024 | Rilton Cup 2023/24 | D10 Queen's Gambit Declined Slav |
| 72. R Akesson vs J Marn |
| 0-1 | 30 | 2024 | Rilton Cup 2023/24 | D37 Queen's Gambit Declined |
Kibitzing
