Stadium: Gardabaer Sports Center Round: 16
| Iceland Úrvalsdeild | 2021/06/04 18:00 | UMF Selfoss v UMF Stjarnan | W | 28-30 |
| Iceland Úrvalsdeild | 2021/06/01 20:00 | UMF Stjarnan v UMF Selfoss | L | 24-26 |
| Iceland Úrvalsdeild | 2021/02/28 19:30 | UMF Selfoss v UMF Stjarnan | L | 29-28 |
| Iceland Úrvalsdeild | 2020/09/11 20:30 | UMF Stjarnan v UMF Selfoss | L | 26-27 |
| Iceland Úrvalsdeild | 2020/02/24 19:30 | UMF Stjarnan v UMF Selfoss | L | 29-33 |
| Iceland Cup | 2020/02/05 19:30 | UMF Stjarnan v UMF Selfoss | W | 34-21 |
| Iceland Úrvalsdeild | 2019/11/04 19:30 | UMF Selfoss v UMF Stjarnan | L | 31-30 |
| Iceland Úrvalsdeild | 2019/04/06 19:00 | UMF Stjarnan v UMF Selfoss | L | 16-32 |
| Iceland Cup | 2021/10/01 20:30 | Fram Reykjavik v UMF Stjarnan | L | 28-25 |
| Iceland Úrvalsdeild | 2021/09/17 19:30 | UMF Afturelding v UMF Stjarnan | W | 35-36 |
| Iceland Cup | 2021/09/13 18:00 | UMF Stjarnan v Knattspyrnufelag Akureyrar | W | 34-30 |
| Iceland Cup | 2021/09/09 19:30 | IF Grotta v UMF Stjarnan | W | 24-28 |
| Iceland Úrvalsdeild | 2021/06/11 18:00 | Haukar Hafnafjordur v UMF Stjarnan | W | 29-32 |
| Iceland Úrvalsdeild | 2021/06/08 20:00 | UMF Stjarnan v Haukar Hafnafjordur | L | 23-28 |
| Iceland Úrvalsdeild | 2021/06/04 18:00 | UMF Selfoss v UMF Stjarnan | W | 28-30 |
| Iceland Úrvalsdeild | 2021/06/01 20:00 | UMF Stjarnan v UMF Selfoss | L | 24-26 |
| Iceland Úrvalsdeild | 2021/10/05 19:30 | Haukar Hafnafjordur v UMF Selfoss | L | 31-22 |
| Iceland Úrvalsdeild | 2021/09/28 19:30 | UMF Selfoss v FH Hafnafjordur | W | 27-23 |
| Iceland Úrvalsdeild | 2021/09/23 19:40 | Fram Reykjavik v UMF Selfoss | L | 29-23 |
| EHF Cup | 2021/09/19 16:00 | UMF Selfoss v KH Koprivnice | D | 28-28 |
| EHF Cup | 2021/09/18 13:00 | KH Koprivnice v UMF Selfoss | W | 25-31 |
| Iceland Úrvalsdeild | 2021/06/04 18:00 | UMF Selfoss v UMF Stjarnan | L | 28-30 |
| Iceland Úrvalsdeild | 2021/06/01 20:00 | UMF Stjarnan v UMF Selfoss | W | 24-26 |
| Iceland Úrvalsdeild | 2021/05/27 19:30 | IF Grotta v UMF Selfoss | W | 23-27 |