StadiumGrob Stadium
| Current capacity of the stadium |
| Standing | 12 000 |
| Seats | 10 000 |
| Tribune | 2 400 |
| Seats for sponsors | 100 |
| Fans attended |
| 11. 4. 2026 | Mariembourg-Chevetonge | 6 288 |
| 6. 4. 2026 | Mariembourg-Tubize | 5 377 |
| 2. 4. 2026 | Mariembourg-Farciennes | 7 157 |
| 26. 3. 2026 | Mariembourg-Linter | 6 898 |
| 21. 3. 2026 | Mariembourg-Malmedy | 8 300 |
| 18. 3. 2026 | Mariembourg-Gerpinnes | 8 136 |
| 16. 3. 2026 | Mariembourg-Theux | 8 636 |
| 12. 3. 2026 | Mariembourg-Royal Sporting Andrlecht™ | 3 728 |
| 7. 3. 2026 | Mariembourg-Club Brugge KV | 3 752 |