StadiumStadion Narwi
| Current capacity of the stadium |
| Standing | 11 400 |
| Seats | 7 900 |
| Tribune | 7 500 |
| Seats for sponsors | 100 |
| Fans attended |
| 2. 5. 2026 | Narew Ostrołęka-Milicz | 3 982 |
| 27. 4. 2026 | Narew Ostrołęka-Majdany | 3 528 |
| 23. 4. 2026 | Narew Ostrołęka-Żukowo | 3 500 |
| 18. 4. 2026 | Narew Ostrołęka-Zagacie | 3 552 |
| 13. 4. 2026 | Narew Ostrołęka-Sławków | 3 523 |
| 11. 4. 2026 | Narew Ostrołęka-Radomicko | 3 539 |
| 6. 4. 2026 | Narew Ostrołęka-Kociołek | 3 692 |
| 2. 4. 2026 | Narew Ostrołęka-Poladowo | 3 946 |
| 28. 3. 2026 | Narew Ostrołęka-Pasłęk | 3 697 |