StadiumStadion Narwi
| Current capacity of the stadium |
| Standing | 11 400 |
| Seats | 7 900 |
| Tribune | 7 500 |
| Seats for sponsors | 100 |
| Fans attended |
| 25. 12. 2025 | Narew Ostrołęka-Sławków | 3 539 |
| 20. 12. 2025 | Narew Ostrołęka-Kolno | 3 680 |
| 15. 12. 2025 | Narew Ostrołęka-Radomicko | 3 524 |
| 11. 12. 2025 | Narew Ostrołęka-Podpaskudy | 5 512 |
| 10. 12. 2025 | Narew Ostrołęka-ŁKS Łódź A | 6 611 |
| 6. 12. 2025 | Narew Ostrołęka-Olsztynek | 6 476 |
| 1. 12. 2025 | Narew Ostrołęka-Milicz | 6 721 |
| 27. 11. 2025 | Narew Ostrołęka-Majdany | 6 629 |