Head to Head
| Iceland League Cup | 2024/02/15 20:00 | Fjolnir v KR Reykjavik | W | 1-6 |
| Iceland Pre-Season Cup | 2021/01/19 19:00 | KR Reykjavik v Fjolnir | W | 3-2 |
| Iceland Cup | 2020/07/30 19:15 | KR Reykjavik v Fjolnir | W | 2-0 |
| Iceland Premier League | 2020/07/22 20:15 | KR Reykjavik v Fjolnir | D | 2-2 |
| Iceland Pre-Season Cup | 2020/01/15 21:00 | Fjolnir v KR Reykjavik | W | 1-2 |
| Iceland Premier League | 2018/08/12 18:00 | KR Reykjavik v Fjolnir | D | 0-0 |
| Iceland Premier League | 2018/05/21 19:15 | Fjolnir v KR Reykjavik | D | 1-1 |
| Iceland Premier League | 2017/09/24 14:00 | Fjolnir v KR Reykjavik | D | 2-2 |
Home History
| Iceland Pre-Season Cup | 2024/12/14 11:00 | Fram Reykjavik v KR Reykjavik | W | 1-3 |
| Iceland Premier League | 2024/10/26 14:00 | KR Reykjavik v HK Kopavogur | W | 7-0 |
| Iceland Premier League | 2024/10/20 19:15 | Fylkir Reykjavik v KR Reykjavik | W | 0-1 |
| Iceland Premier League | 2024/10/06 14:00 | KA Akureyri v KR Reykjavik | W | 0-4 |
| Iceland Premier League | 2024/09/29 14:00 | KR Reykjavik v Fram Reykjavik | W | 7-1 |
| Iceland Premier League | 2024/09/22 14:00 | KR Reykjavik v IF Vestri | D | 2-2 |
| Iceland Premier League | 2024/09/16 19:15 | Valur Reykjavik v KR Reykjavik | L | 4-1 |
| Iceland Premier League | 2024/09/13 17:00 | KR Reykjavik v Vikingur Reykjavik | L | 0-3 |
Away History
| Iceland Pre-Season Cup | 2025/01/04 15:30 | Fjolnir v Leiknir Reykjavik | D | 2-2 |
| Iceland 1 Deild | 2024/09/23 15:45 | Fjolnir v Afturelding | D | 0-0 |
| Iceland 1 Deild | 2024/09/19 19:15 | Afturelding v Fjolnir | L | 3-1 |
| Iceland 1 Deild | 2024/09/14 14:00 | Keflavik v Fjolnir | L | 4-0 |
| Iceland 1 Deild | 2024/09/08 14:00 | Fjolnir v Afturelding | W | 2-0 |
| Iceland 1 Deild | 2024/08/31 14:00 | Grotta Seltjarnarnes v Fjolnir | L | 2-1 |
| Iceland 1 Deild | 2024/08/22 18:00 | Fjolnir v IR Reykjavik | L | 1-2 |
| Iceland 1 Deild | 2024/08/18 16:00 | Thor Akureyri v Fjolnir | D | 1-1 |