StadiumFC Heidenheim
| Current capacity of the stadium |
| Standing | 33 900 |
| Seats | 29 900 |
| Tribune | 27 900 |
| Seats for sponsors | 23 900 |
| Fans attended |
| 7. 7. 2026 | FC Heidenheim-Mariara A | 6 295 |
| 6. 7. 2026 | FC Heidenheim-Kaltennordheim | 5 890 |
| 3. 7. 2026 | FC Heidenheim-Austria Klagenfurt | 6 346 |
| 3. 7. 2026 | FC Heidenheim-FK Močenok | 6 435 |
| 3. 7. 2026 | FC Heidenheim-FCB El Tigre 1922 | 6 425 |
| 2. 7. 2026 | FC Heidenheim-CFC Hertha 06 Berlin | 5 102 |
| 30. 6. 2026 | FC Heidenheim-Roasso Kumamoto | 6 404 |
| 30. 6. 2026 | FC Heidenheim-NK Mladost Sućuraj | 6 064 |
| 30. 6. 2026 | FC Heidenheim-BSK Beograd A | 6 065 |