HomeIllinoisO'Fallon › S.I.M.S. Martial Arts Academy | 10th Planet Jiu Jitsu

S.I.M.S. Martial Arts Academy | 10th Planet Jiu Jitsu

5 ★★★★★ 31 Google reviews · BJJ gym in O'Fallon, Illinois

Part of 10th Planet Jiu-Jitsu

BJJ gym Affiliated 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

  • Kids & youth classes kids and youth BJJ classes — built around discipline, focus, and confidence
  • No-gi no-gi grappling classes — training in a rashguard and shorts, with faster scrambles and a natural bridge to MMA
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule simsmartialartsacademy.com — book classes and see the live schedule
  • Phone (618) 559-7557

Hours

Monday 5–9 PM
Tuesday 5–9 PM
Wednesday 5–9 PM
Thursday 5–9 PM
Friday Closed
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 S.I.M.S. Martial Arts Academy | 10th Planet Jiu Jitsu, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 11 mentions

“My daughter (6) has been training here for a year and the kids instructors really know how to manage the kids through environment of emotions and learning.”

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🩳 No-Gi 2 mentions

“Top notch instructors in no-gi BJJ and nice large clean facilities.”

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🥋 Gi

“Clean, professional, and friendly place to learn No-Gi Jiu Jitsu.”

All gyms that run gi →

🏆 Competition Team

“In house tournaments, tons of practice flexibility.”

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🛡️ Self-Defense 2 mentions

“Martial Arts for a self-defense class, and the entire experience was fantastic.”

All gyms that run self-defense →

What members say

The things reviewers bring up again and again across 31 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 2 mentions

“Great coaches who push you and care about your well-being and progress.”

🤝 no-ego, friendly academy 12 mentions

“The adult classes are very enjoyable and everyone is friendly and helpful.”

🧒 strong kids program 3 mentions

“My daughter has been going here for about 2 years, and our son just recently started, too. Both love it and are eager to go back each week.”

🧼 clean, well-kept mats 5 mentions

“Top notch instructors in no-gi BJJ and nice large clean facilities.”

🧠 builds confidence & discipline 2 mentions

“The kids classes are amazing and help children learn discipline in school and in their personal lives.”

From the reviews

I dropped in to this club twice while in town on business. Besides providing a clean, professional, and safe environment (must-haves for the gyms I visit while traveling), the instruction provided during Rick and Gary's 10P BJJ classes were phenomenal.

★★★★★ — J, Oct 2017

This will forever be my home away from home, this is where I started my Jiu Jitsu journey! Staff is amazing and top tier in their instruction. Teammates are some of the best people I’ve ever met. Jiu Jitsu will change your life! Come join our family!

★★★★★ — Gregory, Mar 2024

Top notch instructors in no-gi BJJ and nice large clean facilities. I've been going for >3.5 years and the team is family! The culture is very respectful. Female and small person friendly!

★★★★★ — Jenny, Mar 2024

Great coaches who push you and care about your well-being and progress. Facilities are stellar! Two mat spaces, locker rooms, and showers.

★★★★★ — Beth, Mar 2024

Excerpts from public Google reviews. Read all 31 reviews →

Your first BJJ class at S.I.M.S. Martial Arts Academy | 10th Planet 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 S.I.M.S. Martial Arts Academy | 10th Planet Jiu Jitsu

675 W Hwy 50, O'Fallon, IL62269

Get directions

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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.