| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. K Winter vs M Kristinsson |
| 0-1 | 47 | 2016 | Gibraltar Masters | B21 Sicilian, 2.f4 and 2.d4 |
| 27. M Kristinsson vs V Berrocal Ruiz |
| 1-0 | 76 | 2016 | Gibraltar Masters | B32 Sicilian |
| 28. M Kristinsson vs R Blodig |
| ½-½ | 45 | 2016 | Gibraltar Masters | B09 Pirc, Austrian Attack |
| 29. M Kristinsson vs L Piasetski |
| 0-1 | 35 | 2017 | Reykjavik Open | B32 Sicilian |
| 30. A Savage vs M Kristinsson |
| 0-1 | 38 | 2017 | Reykjavik Open | B20 Sicilian |
| 31. M Kristinsson vs Jonathan Yu |
| 0-1 | 28 | 2017 | Reykjavik Open | C03 French, Tarrasch |
| 32. G Thorsteinsdottir vs M Kristinsson |
| 1-0 | 45 | 2017 | Reykjavik Open | D87 Grunfeld, Exchange |
| 33. M Kristinsson vs Teck Woon Tan |
| 1-0 | 56 | 2017 | Reykjavik Open | C45 Scotch Game |
| 34. M Kristinsson vs T Roberts |
| 1-0 | 29 | 2022 | Kvika Reykjavik Open | B18 Caro-Kann, Classical |
| 35. H Marzik vs M Kristinsson |
| 1-0 | 41 | 2022 | Kvika Reykjavik Open | D70 Neo-Grunfeld Defense |
| 36. M Dougherty vs M Kristinsson |
| 1-0 | 37 | 2022 | Kvika Reykjavik Open | D94 Grunfeld |
| 37. M Kristinsson vs D Aziz |
| 1-0 | 29 | 2022 | Kvika Reykjavik Open | C45 Scotch Game |
| 38. J Zysko vs M Kristinsson |
| 1-0 | 36 | 2022 | Kvika Reykjavik Open | D02 Queen's Pawn Game |
| 39. M Kristinsson vs K Schmidt |
| 1-0 | 31 | 2022 | Kvika Reykjavik Open | A30 English, Symmetrical |
| 40. Nikolay Kartsev vs M Kristinsson |
| 1-0 | 44 | 2022 | Kvika Reykjavik Open | B22 Sicilian, Alapin |
| 41. M Kristinsson vs A Hughes |
| 1-0 | 40 | 2022 | Kvika Reykjavik Open | D37 Queen's Gambit Declined |
| 42. Njord Eggen vs M Kristinsson |
| 0-1 | 23 | 2023 | Reykjavik Open | B35 Sicilian, Accelerated Fianchetto, Modern Variation with Bc4 |
| 43. M Kristinsson vs O Montague |
| ½-½ | 48 | 2023 | Reykjavik Open | B01 Scandinavian |
Kibitzing
