| Úrvalsdeild | M. | W | D | L | goals | |||
| at home | 4 | 2 | 0 | 2 | 7 | : | 4 | |
| Away | 4 | 2 | 1 | 1 | 4 | : | 3 | |
| ∑ | 8 | 4 | 1 | 3 | 11 | : | 7 | |
| 1. deild | M. | W | D | L | goals | |||
| at home | 4 | 3 | 1 | 0 | 11 | : | 5 | |
| Away | 5 | 4 | 1 | 0 | 12 | : | 4 | |
| ∑ | 9 | 7 | 2 | 0 | 23 | : | 9 | |
| Lengjubikarinn | M. | W | D | L | goals | |||
| at home | 1 | 0 | 1 | 0 | 1 | : | 1 | |
| Away | 1 | 0 | 0 | 1 | 0 | : | 1 | |
| ∑ | 2 | 0 | 1 | 1 | 1 | : | 2 | |
| overall | M. | W | D | L | goals | |||
| at home | 9 | 5 | 2 | 2 | 19 | : | 10 | |
| Away | 10 | 6 | 2 | 2 | 16 | : | 8 | |
| Neutral Place | 0 | 0 | 0 | 0 | 0 | : | 0 | |
| ∑ | 19 | 11 | 4 | 4 | 35 | : | 18 | |
| 1. deild | |||||
| 2024 | 1. Round | UMF Grindavík | - | Fjölnir Reykjavík | 2:3 (0:2) |
| 2023 | 18. Round | Fjölnir Reykjavík | - | UMF Grindavík | 5:1 (2:0) |
| 2023 | 7. Round | UMF Grindavík | - | Fjölnir Reykjavík | 0:1 (0:1) |
| 2022 | 17. Round | Fjölnir Reykjavík | - | UMF Grindavík | 4:3 |
| 2022 | 6. Round | UMF Grindavík | - | Fjölnir Reykjavík | 2:2 |
| 2021 | 14. Round | Fjölnir Reykjavík | - | UMF Grindavík | 2:1 (0:0) |
| 2021 | 3. Round | UMF Grindavík | - | Fjölnir Reykjavík | 0:2 (0:0) |
| 2013 | 20. Round | UMF Grindavík | - | Fjölnir Reykjavík | 0:4 |
| 2013 | 9. Round | Fjölnir Reykjavík | - | UMF Grindavík | 0:0 |
| Lengjubikarinn | |||||
| 2013 | Group 1 | UMF Grindavík | - | Fjölnir Reykjavík | 1:0 |
| 2012 | Group 3 | Fjölnir Reykjavík | - | UMF Grindavík | 1:1 |
|
For games that were decided on penalties the score after 120 minutes will be included in the ranking |
Iceland ![Fjölnir Reykjavík [U17]](https://s.hs-data.com/bilder/wappen/mini/29570.gif?fallback=png "Fjölnir Reykjavík [U17]"){kind=small}
![Fjölnir Reykjavík [Youth]](https://s.hs-data.com/bilder/wappen/mini/26156.gif?fallback=png "Fjölnir Reykjavík [Youth]"){kind=small}