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Catalyst Jiu Jitsu - Windsor

5 ★★★★★ 76 Google reviews · BJJ gym in Windsor, 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 catalystbjj.com — book classes and see the live schedule
  • Phone +1 970-460-9112

Hours

Monday 8:30–10 am, 3–8 pm
Tuesday 8:30–10 am, 3–8:30 pm
Wednesday 8:30–10 am, 3–8 pm
Thursday 8:30–10 am, 3–8:30 pm
Friday 8:30–10 am, 3–7 pm
Saturday 9–11:30 am
Sunday 11 am–2 pm

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 Catalyst Jiu Jitsu - Windsor, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 36 mentions

“Todd was very welcoming, worked with the kids very well, understanding the frustrations and emotions these kids go through while participating in this difficult sport.”

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🏆 Competition Team 11 mentions

“My seven year old daughter participated in a competition class with Professor Todd and had a great time.”

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🔓 Open Mat 5 mentions

“My kid attended an open mat at Catalyst Jiu-Jitsu and the experience was absolutely amazing.”

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🛡️ Self-Defense

“It's a great way to learn self defense, get exercise, and my daughter absolutely loves it!”

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🌱 Beginners 3 mentions

“Being new, the facility is spotless with brand new mats and two large workout areas.”

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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 Catalyst Jiu Jitsu - Windsor — mined from their reviews and the gym's own info.

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 76 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 4 mentions

“Professor Todd and the coaches are great at breaking down techniques and teaching them to you in an easy to learn way.”

🌱 welcoming to beginners 11 mentions

“The professors and coaches here are all welcoming and are skilled at not only doing jiu jitsu themselves but ALSO coaching jiu jitsu (even to kids which is a talent in itself!”

🤝 no-ego, friendly academy 28 mentions

“The professors and coaches here are all welcoming and are skilled at not only doing jiu jitsu themselves but ALSO coaching jiu jitsu (even to kids which is a talent in itself!”

📘 strong technique & fundamentals 6 mentions

“Professor Todd and the coaches are great at breaking down techniques and teaching them to you in an easy to learn way.”

great workout & conditioning 3 mentions

“It's a great way to learn self defense, get exercise, and my daughter absolutely loves it!”

🧒 strong kids program 6 mentions

“If you are considering bully-proofing your child and want them to develop confidence in a warm environment don't miss this great school.”

From the reviews

Where do I start?! We home school our kids, we travel a lot with work. We are used to being outliers every where We go. It can be challenging moving state to state, sometimes country to country. One thing that is constant in our travels, is the friends we have found in Jiu Jitsu.

★★★★★ — Nathan, Nov 2019

Been training here for about 2.5 years, and I can hands down say you will not find a better place for the services they offer. Curriculum is fresh, innovative, and open to personal adaptation. Lots of class options, from morning to evening and weekend.

★★★★★ — Jason, Nov 2018

6/16/14 Update I've been taking my ten year old son to Catalyst for ten months now. I always watch the training. This school continues to impress and exceed my expectations. Yes it is a large, new and clean facility, but that is a small part of the draw. It's the people.

★★★★★ — Thomas, Jun 2014

Catalyst is awesome! I have been practicing Jiu Jitsu at Catalyst for a couple of months now and it has been amazing. Professor Todd and all the coaches are very knowledgeable and great teachers. Everyone has been very welcoming to me.

★★★★★ — Jesse, Aug 2021

Excerpts from public Google reviews. Read all 76 reviews →

New to BJJ? Start at Catalyst Jiu Jitsu - Windsor

Catalyst Jiu Jitsu - Windsor comes up as a beginner-friendly gym, going by their listing and members’ reviews. 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.

See their beginner class info

Your first BJJ class at Catalyst Jiu Jitsu - Windsor

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 Catalyst Jiu Jitsu - Windsor

1111 Diamond Valley Dr #102, Windsor, CO80550

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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.