StadiumStadion Sieńsk
| Current capacity of the stadium |
| Standing | 10 600 |
| Seats | 6 700 |
| Tribune | 4 000 |
| Seats for sponsors | 100 |
| Fans attended |
| 30. 7. 2026 | Sieńsk-Yauya | 15 364 |
| 25. 7. 2026 | Sieńsk-W¹sewo-Kolonia | 11 644 |
| 20. 7. 2026 | Sieńsk-Sierpów | 17 033 |
| 11. 7. 2026 | Sieńsk-Parchowski M³yn | 18 563 |
| 6. 7. 2026 | Sieńsk-Zwoleń | 16 715 |
| 2. 7. 2026 | Sieńsk-Hanna | 11 517 |
| 27. 6. 2026 | Sieńsk-Tuliszków | 11 801 |
| 22. 6. 2026 | Sieńsk-Mizil | 13 291 |
| 18. 6. 2026 | Sieńsk-Rowy | 14 276 |