HomeColoradoLittleton › Katharo Training Center - Jiu-Jitsu and Fitness

Katharo Training Center - Jiu-Jitsu and Fitness

4.9 ★★★★★ 115 Google reviews · BJJ gym in Littleton, Colorado

BJJ gym Free trial Affiliated Beginners welcome Kids & teens No-gi Competition team

Affiliated academy — reviews and the gym's own info point to a recognized BJJ lineage or affiliation (think Gracie Barra, 10th Planet, Renzo Gracie, Alliance, Atos or Checkmat). If lineage matters to you, ask which affiliation the academy belongs to and under whom the head instructor earned their black belt.

Plan your first class

  • Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
  • Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
  • Kids & youth classes kids and youth BJJ classes — built around discipline, focus, and confidence
  • Women's classes dedicated women's BJJ classes — a welcoming space to train and start out in
  • No-gi no-gi grappling classes — training in a rashguard and shorts, with faster scrambles and a natural bridge to MMA
  • Open mat open-mat rolling sessions for members to practice live — always optional and at your own pace
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule katharotrainingcenter.com — book classes and see the live schedule
  • Phone +1 720-575-5229

Hours

Monday 4:15–9 pm
Tuesday 4:15–9 pm
Wednesday 4:15–9 pm
Thursday 4:15–9 pm
Friday 5:45–7:15 pm
Saturday 9:15 am–2:30 pm
Sunday Closed

Hours shift for holidays, seminars, and open-gym times — worth a quick check before a special trip.

The classes they run

BJJ classes on the schedule at Katharo Training Center - Jiu-Jitsu and Fitness, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

📘 Fundamentals 3 mentions

“Starting with Budokon really helped me understand the movements before jumping into the fundamentals and I'm really glad I started this way.”

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🧒 Kids BJJ 7 mentions

“This is a comfortable environment for not only men, women and children but also professional fighters and grapplers!”

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💪 Women's BJJ

“Also recommend the Wednesday women's class!”

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🔓 Open Mat

“Lots of fun, tons of classes and open mats, and there is always someone there to help you out with your training.”

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🛡️ Self-Defense 7 mentions

“I was taught Gracie BJJ moves that would work for self defense skills as well as for someone wanting to engage in competitive Jiu Jitsu/Grappling/Muai Thai/Wrestling.”

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🌱 Beginners 5 mentions

“Everyone at the training center is extremely welcoming and helpful, especially to those of us that have no experience.”

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Other martial arts here

BJJ gyms are usually multi-discipline. Here's what else members mention training under the same roof at Katharo Training Center - Jiu-Jitsu and Fitness — mined from their reviews and the gym's own info.

🥊 Muay Thai 2 mentions

“Kids classes, wrestling, Muay-Thai & MMA, BJJ and self defense classes are taught every week.”

Other gyms that also teach muay thai →

🏟️ MMA

“Kids classes, wrestling, Muay-Thai & MMA, BJJ and self defense classes are taught every week.”

Other gyms that also teach mma →

🤸 Wrestling 2 mentions

“I was taught Gracie BJJ moves that would work for self defense skills as well as for someone wanting to engage in competitive Jiu Jitsu/Grappling/Muai Thai/Wrestling.”

Other gyms that also teach wrestling →

Disciplines are mined from reviews and the gym's own info — they show what members have trained, not a formal class guarantee. If you specifically want MMA, muay thai, or wrestling alongside your BJJ, confirm the current schedule with the gym.

What members say

The things reviewers bring up again and again across 115 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 6 mentions

“Highly recommend to the families in Littleton/Denver looking for world class instruction and wanting to get into, or level up, their self defense, workout or martial arts game!”

🌱 welcoming to beginners 7 mentions

“Everyone at the training center is extremely welcoming and helpful, especially to those of us that have no experience.”

🤝 no-ego, friendly academy 5 mentions

“Everyone at the training center is extremely welcoming and helpful, especially to those of us that have no experience.”

📘 strong technique & fundamentals 4 mentions

“Starting with Budokon really helped me understand the movements before jumping into the fundamentals and I'm really glad I started this way.”

great workout & conditioning 4 mentions

“I take the striking classes with coach John as well as the conditioning class on Saturday morning.”

🎖️ legit lineage & affiliation 2 mentions

“I was taught Gracie BJJ moves that would work for self defense skills as well as for someone wanting to engage in competitive Jiu Jitsu/Grappling/Muai Thai/Wrestling.”

From the reviews

This gym is fantastic. It is a very welcoming community stacked with top tier instructors. There is a disciplined culture of respect and mutual improvement here which helps you learn quickly and correctly.

★★★★★ — Caleb, Jul 2022

Katharo training center is the best self-defense and Brazilian Jiu Jitsu in the Littleton and Denver area. Professor Steve Hordinkski is a compassionate and attentive coach. I have trained at a lot of gyms around the world and always feel at home with my training partners and instructors at Katharo.

★★★★★ — B, Oct 2023

Katharo Training Center is by far the best Jiu Jitsu school I’ve trained at in Colorado, having trained at Easton training center and High Altitude Martial Arts this school provides everything you would need for Jiu Jitsu. Professor Steve is a phenomenal coach and runs a top notch facility that is always clean!

★★★★★ — Caleb, Jul 2022

The instructors are fantastic, humble, and willing to help and answer questions. The facility is excellent; in addition to the large mat for classes, there are smaller rooms for instruction and there's a substantial fitness area for crossfit and focus-based physical training, including an outside space for flipping…

★★★★★ — Ronin, Jun 2019

Excerpts from public Google reviews. Read all 115 reviews →

New to BJJ? Start at Katharo Training Center - Jiu-Jitsu and Fitness

Katharo Training Center - Jiu-Jitsu and Fitness comes up as a beginner-friendly gym — noted on their own site. If you've never rolled or set foot on a mat, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit or flexible to start — you get in shape by training, not before it, and coaches scale the intensity to you. Second, you won't be thrown into hard rolling — reputable gyms build fundamentals (positions, escapes, and basic submissions) for weeks, live rolling eases in gradually, and tapping early keeps every roll safe. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out, and leave your ego at the door. Most gyms are happy to let you watch or try a class first, so reach out before you commit.

Check beginner classes on their site

Your first BJJ class at Katharo Training Center - Jiu-Jitsu and Fitness

Nervous about walking into a BJJ gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling basic positions and escapes with a partner — not hard sparring. Rest whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot on the mats. What to bring: water and a mouthguard if you have one — many gyms lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi (or a rashguard and shorts for no-gi) and a mouthguard. Live rolling eases in gradually, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.

BJJ is a contact sport. Ease in, tap early and often, listen to your coaches, and if you have any injuries or health concerns, mention them before class and check with a doctor if you're unsure.

Where to find Katharo Training Center - Jiu-Jitsu and Fitness

10146 W San Juan Way Unit #90 #100, Littleton, CO80127

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Listing verified July 2026 from public business records and member reviews. Something out of date? Report a correction. Own this gym? Claim your listing — it's free.