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OSA Martial Arts-Manassas
5 ★★★★★ 14 Google reviews · Judo dojo in Manassas, Virginia
Affiliated dojo — reviews and the dojo's own info point to a recognized judo governing body or lineage (think USA Judo, USJA, USJF, Kodokan or Tenri). If affiliation matters to you, ask which body the dojo belongs to and under whom the head sensei earned their black belt.
Plan your first class
- Kids & youth classes kids and youth judo classes — built around discipline, focus, and confidence
- Private lessons private, one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
- Today see hours ·
- Website & schedule osamartialartsfederation.com — book classes and see the live schedule
- Phone (703) 672-0681
Hours
| Monday | 6:30 AM–7 PM |
| Tuesday | 6:30 AM–8:30 PM |
| Wednesday | 6:30 AM–7 PM |
| Thursday | 6:30 AM–8:30 PM |
| Friday | 6:30 AM–7 PM |
| Saturday | 8 AM–12 PM |
| Sunday | Closed |
The classes they run
“The instructors and all of the other staff took the time to learn about my kids and what they needed to adjust and how to deal with them on a daily basis.”
Other martial arts here
What members say
“Instructor Hernandez is so great with the kids.”
“We had looked at martial arts before, but the boys immediately loved this program and us was an easy decision that this was the place for our family.”
“My son is very shy and lacks confidence and he has instilled so much confidence in him.”
“His teaching style is both engaging and motivating, ensuring that students not only learn the skills but also develop confidence and discipline.”
From the reviews
My 6 year old son has been at OSA for about a month now. We decided to come here after him needing a change from his usual aftercare. As a bonus, they have him in Judo classes twice a week. So far, he's loving it!
If I could give more stars I would. This place is amazing. My 2 ADHD-C and Autistic boys have had the best summer here. They were always busy with trips and activities but they learned so much as well. Their behavior and manners improved infinitely even at home.
OSA gave me the opportunity to learn how to defend myself. I have been taking Hapkido for several years and I have gained confidence in my physical abilities. The OSA instructors are all professional, caring, knowledgeable, and patient.
Oriental Sports Academy in Manassas has truly been one of the biggest blessings for our family. Instructor Hernandez and his mom are absolute lifesavers — so loving, caring, and patient. They made my six-year-old son and eight-year-old daughter feel welcomed and right at home from day one.
Your first judo class at OSA Martial Arts-Manassas
Nervous about walking into a judo dojo for the first time? Almost everyone is, and good sensei expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, learning to fall safely (ukemi), then drilling a throw or two and some groundwork with a partner — not hard randori. Rest whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a judogi if you have one); you'll train barefoot on the mats. What to bring: water and a mouthguard if you have one — many dojos lend a loaner judogi for a first class, so it's worth asking when you call. As you keep training you'll add your own judogi. Live randori eases in gradually, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the sensei. It gets easier fast — most people feel far more at home by their third class.
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