StadiumJoseph Marien Stadium
| Current capacity of the stadium |
| Standing | 27 900 |
| Seats | 17 400 |
| Tribune | 10 500 |
| Seats for sponsors | 300 |
| Fans attended |
| 12. 10. 2025 | Union Saint Gilloise-Beňadiková | 5 203 |
| 10. 10. 2025 | Union Saint Gilloise-Chomle | 5 106 |
| 10. 10. 2025 | Union Saint Gilloise-Beňadiková | 5 097 |
| 10. 10. 2025 | Union Saint Gilloise-Týnec nad Sázavou | 5 123 |
| 10. 10. 2025 | Union Saint Gilloise-FC Ledbury | 5 131 |
| 9. 10. 2025 | Union Saint Gilloise-Lier | 12 909 |
| 8. 10. 2025 | Union Saint Gilloise-Beňadiková | 4 663 |
| 8. 10. 2025 | Union Saint Gilloise-Chomle | 4 532 |
| 8. 10. 2025 | Union Saint Gilloise-Ježci Rantířov A | 4 279 |