| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. B H Birkisson vs V Bianco |
| 1-0 | 59 | 2017 | Isle of Man Masters | A01 Nimzovich-Larsen Attack |
| 27. B H Birkisson vs M Babar |
| ½-½ | 115 | 2017 | Isle of Man Masters | E90 King's Indian |
| 28. B H Birkisson vs Y Norowitz |
| 0-1 | 40 | 2017 | TCh-ISL Div 2 -18 | A00 Uncommon Opening |
| 29. B H Birkisson vs B Thorfinnsson |
| 0-1 | 43 | 2017 | Northern Lights Open | A01 Nimzovich-Larsen Attack |
| 30. H S Gretarsson vs B H Birkisson |
| 1-0 | 26 | 2017 | Northern Lights Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 31. B Thorfinnsson vs B H Birkisson |
| 1-0 | 37 | 2017 | Northern Lights Open | B25 Sicilian, Closed |
| 32. J Ontiveros vs B H Birkisson |
| 0-1 | 19 | 2018 | Reykjavik Open | A40 Queen's Pawn Game |
| 33. Jon Eggert Hallsson vs B H Birkisson |
| 0-1 | 31 | 2018 | Reykjavik Open | A07 King's Indian Attack |
| 34. B H Birkisson vs N Kumar |
| 0-1 | 36 | 2018 | Reykjavik Open | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 35. B H Birkisson vs T K Antal |
| 0-1 | 73 | 2018 | Reykjavik Open | A07 King's Indian Attack |
| 36. D Ilkov vs B H Birkisson |
| 0-1 | 31 | 2018 | Reykjavik Open | A10 English |
| 37. B H Birkisson vs S Fenil |
| 0-1 | 36 | 2018 | Reykjavik Open | D00 Queen's Pawn Game |
| 38. B H Birkisson vs M Brunello |
| 1-0 | 45 | 2018 | Reykjavik Open | A00 Uncommon Opening |
| 39. G Lorscheid vs B H Birkisson |
| 0-1 | 33 | 2018 | Reykjavik Open | A41 Queen's Pawn Game (with ...d6) |
| 40. T Sachdev vs B H Birkisson |
 | 1-0 | 21 | 2019 | Reykjavik Open | D15 Queen's Gambit Declined Slav |
| 41. B H Birkisson vs E de Winter |
| 1-0 | 27 | 2019 | Reykjavik Open | A30 English, Symmetrical |
| 42. B H Birkisson vs B G Haile |
| 1-0 | 41 | 2019 | Reykjavik Open | D78 Neo-Grunfeld, 6.O-O c6 |
| 43. B H Birkisson vs A Hambleton |
| 0-1 | 42 | 2019 | Reykjavik Open | A15 English |
| 44. G Kjartansson vs B H Birkisson |
| 1-0 | 43 | 2019 | TCh-ISL Div 1 -20 | A29 English, Four Knights, Kingside Fianchetto |
| 45. Z Pakleza vs B H Birkisson |
| 1-0 | 38 | 2019 | TCh-ISL Div 1 -20 | A13 English |
| 46. L Pantsulaia vs B H Birkisson |
| 1-0 | 39 | 2021 | European Championship | A04 Reti Opening |
| 47. A Ventura Sousa vs B H Birkisson |
| 1-0 | 35 | 2021 | European Championship | B90 Sicilian, Najdorf |
| 48. Y Sokolovsky vs B H Birkisson |
| 1-0 | 28 | 2021 | European Championship | B90 Sicilian, Najdorf |
| 49. B H Birkisson vs D Kjartansson |
| 0-1 | 36 | 2021 | European Championship | D35 Queen's Gambit Declined |
| 50. B H Birkisson vs R Vedder |
| 0-1 | 48 | 2021 | European Championship | D20 Queen's Gambit Accepted |
Kibitzing
