Stadium Detva Arena
| Current capacity of the stadium |
| Standing | 44 700 |
| Seats | 34 700 |
| Tribune | 28 000 |
| Seats for sponsors | 8 500 |
| Fans attended |
| 14. 7. 2026 | AS Saint Etienne-Cardiff Metropolitan FC ™ | 28 123 |
| 14. 7. 2026 | AS Saint Etienne-AS Monaco™ | 27 720 |
| 13. 7. 2026 | AS Saint Etienne-Montauban | 19 701 |
| 11. 7. 2026 | AS Saint Etienne-Lille | 22 505 |
| 7. 7. 2026 | AS Saint Etienne-PFC CSKA Sofia ™ | 29 197 |
| 7. 7. 2026 | AS Saint Etienne-Montmorency | 31 673 |
| 6. 7. 2026 | AS Saint Etienne-Frejus | 25 999 |
| 2. 7. 2026 | AS Saint Etienne-St Benoit sur Loire | 20 228 |
| 30. 6. 2026 | AS Saint Etienne-FC Brest | 48 284 |