About this gym
If you are looking for Boxing in Denver, CO, Black Twenty One is on the map. Training here centers on the fundamentals — footwork, head movement, and combinations — on the bags, the pads, and, when you are ready, in the ring. With a 5-star rating across 23 Google reviews, it is one of the better-regarded spots to train in the Denver area.
New students are welcome; reach out to ask about intro classes, schedules, and what to bring to your first session.
Disciplines
Frequently asked questions
Where is Black Twenty One located?
Black Twenty One is located at 1870 S Acoma St, Denver, CO 80223.
What kind of training does Black Twenty One offer?
Black Twenty One focuses on Boxing training.
Is Black Twenty One good for beginners?
Yes — like most Boxing gyms, Black Twenty One welcomes beginners. Call (720) 935-1872 to ask about intro classes and beginner-friendly sessions.
How do I contact Black Twenty One?
Call Black Twenty One at (720) 935-1872, visit their website, find directions and hours on their Google listing.