StadiumStadion Calheta
| Current capacity of the stadium |
| Standing | 20 600 |
| Seats | 12 900 |
| Tribune | 7 700 |
| Seats for sponsors | 300 |
| Fans attended |
| 22. 8. 2026 | Siena-Rovigo | 3 432 |
| 17. 8. 2026 | Siena-Praia | 3 714 |
| 13. 8. 2026 | Siena-Legnano | 4 020 |
| 8. 8. 2026 | Siena-Chioggia | 3 589 |
| 3. 8. 2026 | Siena-Odra Wodzisław Śl. | 3 684 |
| 30. 7. 2026 | Siena-AC Parma Academy | 3 521 |
| 25. 7. 2026 | Siena-SC Barletta | 3 551 |
| 20. 7. 2026 | Siena-Gallarate | 3 693 |
| 16. 7. 2026 | Siena-Aversa | 3 717 |