| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. I J Kvamme vs M Marshall |
| ½-½ | 57 | 2018 | Reykjavik Open | A06 Reti Opening |
| 27. M Marshall vs J Piovar |
| 1-0 | 48 | 2018 | Reykjavik Open | D00 Queen's Pawn Game |
| 28. J Ingebretsen vs M Marshall |
| 1-0 | 27 | 2018 | Reykjavik Open | C42 Petrov Defense |
| 29. M Marshall vs J Pein |
| 0-1 | 69 | 2018 | Reykjavik Open | A46 Queen's Pawn Game |
| 30. Herbert Kurt vs M Marshall |
| 0-1 | 28 | 2018 | Reykjavik Open | A07 King's Indian Attack |
| 31. M Marshall vs D Ragnarsson |
| ½-½ | 32 | 2018 | Reykjavik Open | D02 Queen's Pawn Game |
| 32. L Laustsen vs M Marshall |
| 1-0 | 57 | 2018 | Reykjavik Open | A41 Queen's Pawn Game (with ...d6) |
| 33. M Marshall vs Jon Eggert Hallsson |
| 0-1 | 32 | 2018 | Reykjavik Open | A80 Dutch |
Kibitzing
