StadiumStadion Os
| Current capacity of the stadium |
| Standing | 18 000 |
| Seats | 11 300 |
| Tribune | 6 800 |
| Seats for sponsors | 200 |
| Fans attended |
| 22. 8. 2026 | Os-Gjovik | 11 038 |
| 17. 8. 2026 | Os-Ranheim Trondheim 1901 | 10 098 |
| 13. 8. 2026 | Os-FC Sarpsborg 08 | 11 470 |
| 8. 8. 2026 | Os-FK Lyn | 10 072 |
| 3. 8. 2026 | Os-Eidsvold | 10 437 |
| 30. 7. 2026 | Os-Valerenga | 9 633 |
| 25. 7. 2026 | Os-Stabak 2 | 9 111 |
| 18. 7. 2026 | Os-Raufoss | 12 451 |
| 11. 7. 2026 | Os-Barum | 11 737 |