StadiumStadion Calheta
| Current capacity of the stadium |
| Standing | 20 600 |
| Seats | 12 900 |
| Tribune | 7 700 |
| Seats for sponsors | 300 |
| Fans attended |
| 7. 7. 2025 | Siena-Baselice | 4 970 |
| 5. 7. 2025 | Siena-Aversa | 4 951 |
| 28. 6. 2025 | Siena-Sacco | 6 945 |
| 23. 6. 2025 | Siena-Rimini | 5 677 |
| 19. 6. 2025 | Siena-Lucito | 4 612 |
| 14. 6. 2025 | Siena-Chioggia | 6 873 |
| 9. 6. 2025 | Siena-Odra Wodzisław Śl. | 11 448 |
| 5. 6. 2025 | Siena-Inter Milano FC | 5 678 |
| 31. 5. 2025 | Siena-Gallarate | 5 638 |