StadiumStadion Boulder
| Current capacity of the stadium |
| Standing | 18 600 |
| Seats | 11 600 |
| Tribune | 7 000 |
| Seats for sponsors | 200 |
| Fans attended |
| 16. 12. 2025 | Boulder-Fairbanks | 5 976 |
| 15. 12. 2025 | Boulder-FC Chicago Fire | 7 279 |
| 8. 12. 2025 | Boulder-Helena | 7 226 |
| 7. 12. 2025 | Boulder-San Mateo | 9 414 |
| 29. 11. 2025 | Boulder-Wichita Falls | 7 301 |