StadiumStadion Siemiatycze
| Current capacity of the stadium |
| Standing | 17 300 |
| Seats | 10 800 |
| Tribune | 6 500 |
| Seats for sponsors | 200 |
| Fans attended |
| 15. 6. 2026 | Siemiatycze-Ciechanowiec | 3 778 |
| 11. 6. 2026 | Siemiatycze-Prata Sannita | 3 779 |
| 7. 6. 2026 | Siemiatycze-Ropczyce | 4 321 |
| 6. 6. 2026 | Siemiatycze-Żagań | 3 899 |
| 1. 6. 2026 | Siemiatycze-Borek wlkp | 3 834 |