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Fortuna Brazilian Jiu-Jitsu

5 ★★★★★ 20 Google reviews · BJJ gym in O'Fallon, Missouri

BJJ gym Free trial Beginners welcome Kids & teens Private lessons

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
  • 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
  • Open mat open-mat rolling sessions for members to practice live — always optional and at your own pace
  • Today see hours ·
  • Website & schedule fortunabjj.com — book classes and see the live schedule
  • Phone +1 636-638-8622

Hours

Monday 4:30–8 pm
Tuesday 4:30–8:30 pm
Wednesday 4:30–8 pm
Thursday 4:30–8:30 pm
Friday 5–8 pm
Saturday 9 am–12 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 Fortuna Brazilian Jiu-Jitsu, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 22 mentions

“The gym itself has a very welcoming vibe, when i walked in there were several parents sitting, watching their kids learn Jiu Jitsu.”

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👤 Private Lessons 2 mentions

“I’m lucky to have the opportunity to do 1-on-1 sessions with him and also attend his BJJ and KB classes throughout the week.”

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🔓 Open Mat

“We warmed up, did some leg drags and back takes, finished up with some pass protect sweep, and then open mats.”

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🌱 Beginners 4 mentions

“Whether you’re a beginner or a seasoned grappler, you’ll find exactly what you need to improve.”

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

🏟️ MMA

“Marcel is not only a very accomplished grappler and MMA fighter, but is also a patient and insightful teacher.”

Other gyms that also teach mma →

🦵 Kickboxing 5 mentions

“I do the kickboxing and let me tell you there is no better way to meet some great people and work your entire body while feeling like a badass!”

Other gyms that also teach kickboxing →

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 20 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 10 mentions

“I noticed that Professor Marcel is great with kids along side Daniel who is an assistant coach and has kids enrolled there as well!”

🌱 welcoming to beginners 14 mentions

“As others came in, they were all very welcoming and made me feel like id been training here for years, not just dropping in as a stranger from another school.”

🤝 no-ego, friendly academy 14 mentions

“As others came in, they were all very welcoming and made me feel like id been training here for years, not just dropping in as a stranger from another school.”

📘 strong technique & fundamentals 9 mentions

“The attention to detail in every technique is incredible, and I’ve made more progress here than anywhere else I’ve trained.”

great workout & conditioning 2 mentions

“I came from 9Round in January, and was looking for a gym that taught technique while still getting a great workout in.”

🧒 strong kids program 4 mentions

“I noticed that Professor Marcel is great with kids along side Daniel who is an assistant coach and has kids enrolled there as well!”

From the reviews

I was in town for a week and was looking around for a place to train, contacted Marcel and he invited me in for a class. Got there during kids class and watched him and another instructor doing work with the kids. Kids were enjoying class and looked to be getting some good training in.

★★★★★ — Josh, Aug 2024

Can’t say enough about Fortuna BJJ or Marcel!! Marcel has been my 1 on 1 Professor/Instructor for over 3 years now. It was a no-brainer to follow him when he opened his new gym a little over a year ago, because he’s absolutely the best at what he does!

★★★★★ — Andrew, Jun 2024

So glad I joined this gym. I came from 9Round in January, and was looking for a gym that taught technique while still getting a great workout in. I have grown so much in the short time I've been here, Marcel is be best coach!!!

★★★★★ — Emily, Jul 2024

FIrst impression. The gym itself has a very welcoming vibe, when i walked in there were several parents sitting, watching their kids learn Jiu Jitsu. I noticed that Professor Marcel is great with kids along side Daniel who is an assistant coach and has kids enrolled there as well!

★★★★★ — Aye-1, Dec 2024

Excerpts from public Google reviews. Read all 20 reviews →

New to BJJ? Start at Fortuna Brazilian Jiu-Jitsu

Fortuna Brazilian Jiu-Jitsu 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.

See their beginner class info

Your first BJJ class at Fortuna Brazilian Jiu-Jitsu

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 Fortuna Brazilian Jiu-Jitsu

127 Triad Center W, O'Fallon, MO63366

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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.