The Boulder Yard
- Community
- Area
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24 gyms listed · 8 in Frederick · 21 open weekends · 23 rated 4.5+
Data verified October 18, 2026
The 24 gyms listed for Frederick, MD teach martial arts and combat sports. Styles taught, kids' programs and class times come from each gym's own pages, with star ratings from public reviews.

8 of the 24 gyms we list are based in Frederick; the other 16 serve Frederick from towns including Gaithersburg (23 mi), Damascus (15 mi) and Mt Airy (15 mi). The gyms on this page are rated from 4.0 to 5.0 across 1,606 reviews; 14 have 50 or more reviews and 23 are rated 4.5 or higher. When students and parents rate these gyms on specific qualities, they most often praise professionalism (97%), quality (83%) and communication (69%). The topics that come up most in reviews of the gyms on this page are "atmosphere" and "community". 21 are open on Saturdays and 4 on Sundays. Domain records put 14 websites of the gyms on this page at ten or more years old; the oldest dates from 2002. 1 offers a free trial or consultation; 1 is family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 24 of the gyms on this page; 18 publish a contact page; all 24 list a public email and 7 take bookings online. We count these figures across the gyms on this page; distances are straight-line, and hours and prices change, so confirm the details with the gym before you enroll.
8 of the 24 gyms sit inside Frederick. The rest come from other towns inside 35 mi, each shown under the city it belongs to. Distance is measured straight-line, so check the route before you plan a class you would drive to twice a week.
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