41 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Heidarsson, Mikael Bjarki | Leosson, Haukur Vidis | 1-0 | D02 | Haustmót TR 2026 | 2026-09-19 |
| Heidarsson, Mikael Bjarki | Jonsson, Gauti Pall | 0-1 | A57 | Haustmót TR 2026 | 2026-09-19 |
| Heidarsson, Mikael Bjarki | Omarsson, Josef | 0-1 | E73 | Haustmót TR 2026 | 2026-09-18 |
| Heidarsson, Mikael Bjarki | Halldorsson, Jon Arni | 1/2-1/2 | D10 | Haustmót TR 2026 | 2026-09-06 |
| Heidarsson, Mikael Bjarki | Ragnarsson, Johann | 0-1 | D00 | Haustmót TR 2026 | 2026-09-02 |
| Heidarsson, Mikael Bjarki | Ernisson, Petur Ulfar | 0-1 | A48 | Boðsmót TR 2026 - B flokkur | 2026-04-26 |
| Heidarsson, Mikael Bjarki | Hermannsson, Sigurbjorn | 1-0 | A07 | Boðsmót TR 2026 - B flokkur | 2026-04-25 |
| Heidarsson, Mikael Bjarki | Davidsson, Oskar Vikingur | 1/2-1/2 | D31 | Boðsmót TR 2026 - B flokkur | 2026-04-24 |
| Heidarsson, Mikael Bjarki | Kurmann, Oliver | 0-1 | D02 | Reykjavik Open 2026 | 2026-03-26 |
| Heidarsson, Mikael Bjarki | Birkisson, Bjorn Holm | 0-1 | D53 | Round 9: Heidarsson, Mikael Bjarki - Birkisson, Bjorn Holm | 2024-06-09 |
| Heidarsson, Mikael Bjarki | Thorsteinsdottir, Hallgerdur | 1/2-1/2 | A34 | Round 7: Heidarsson, Mikael Bjarki - Thorsteinsdottir, Hallgerdur | 2024-06-07 |
| Heidarsson, Mikael Bjarki | Ptacnikova, Lenka | 0-1 | A80 | Round 2: Heidarsson, Mikael Bjarki - Ptacnikova, Lenka | 2024-06-02 |
| Heidarsson, Mikael Bjarki | Villa Tornero, Alex | 0-1 | A67 | u14 | 2023-11-15 |
| Heidarsson, Mikael Bjarki | Goh, Zi Han | 0-1 | D35 | u14 | 2023-11-13 |
| Mikael Bjarki Heidarsson | Brestir Samuelsen | 1/2-1/2 | D31 | Nordic Youth Championship 2023 | 2023-02-19 |
| Mikael Bjarki Heidarsson | Jami Valpas | 0-1 | D13 | Nordic Youth Championship 2023 | 2023-02-19 |
| Mikael Bjarki Heidarsson | Lavinia Valcu | 0-1 | A57 | Nordic Youth Championship 2023 | 2023-02-18 |
| Heidarsson, Mikael Bjarki | Moller, Tomas | 1-0 | D15 | European Individual Chess Championship 2021 - Reykjavik Open | 2021-09-02 |
| Heidarsson, Mikael Bjarki | Pozimski, Szymon | 1/2-1/2 | D20 | European Individual Chess Championship 2021 - Reykjavik Open | 2021-08-31 |
| Heidarsson, Mikael Bjarki | Hallmundarson, Birkir | 1-0 | E10 | European Individual Chess Championship 2021 - Reykjavik Open | 2021-08-29 |
| Heidarsson, Mikael Bjarki | Player, Edmund C | 0-1 | D20 | European Individual Chess Championship 2021 - Reykjavik Open | 2021-08-27 |
| Heidarsson, Mikael Bjarki | Normann Topp , Xavi | 0-1 | A44 | Nordic Youth Chess Championship | |
| Heidarsson, Mikael Bjarki | Magnussen, Petur Gardar | 1-0 | E01 | Nordic Youth Chess Championship | |
| Heidarsson, Mikael Bjarki | Salonen, Aku | 0-1 | E04 | Nordic Youth Chess Championship |