StadiumEstadio Monumental
| Current capacity of the stadium |
| Standing | 54 000 |
| Seats | 34 000 |
| Tribune | 21 000 |
| Seats for sponsors | 1 000 |
| Fans attended |
| 20. 8. 2026 | FC Colo Colo-Villarreal CF | 35 620 |
| 15. 8. 2026 | FC Colo Colo-Cerceda | 22 244 |
| 10. 8. 2026 | FC Colo Colo-FK TROJAN | 32 321 |
| 6. 8. 2026 | FC Colo Colo-Calatayud | 35 100 |
| 1. 8. 2026 | FC Colo Colo-Gijón | 24 212 |
| 27. 7. 2026 | FC Colo Colo-Ubeda | 27 081 |
| 23. 7. 2026 | FC Colo Colo-Baza | 26 443 |
| 20. 7. 2026 | FC Colo Colo-Getxo | 27 387 |
| 16. 7. 2026 | FC Colo Colo-FC Hatty Ayamonte | 35 646 |