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Square One Jiu Jitsu Academy

5 ★★★★★ 74 Google reviews · BJJ gym in Lee's Summit, Missouri

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

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
  • 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 squareonejj.com — book classes and see the live schedule
  • Phone +1 816-287-0492

Hours

Monday 6–7:30 am, 5:30–8:30 pm
Tuesday 5:30–8:30 pm
Wednesday 6–7:30 am, 5:30–8:30 pm
Thursday 5:30–8:30 pm
Friday 6 am–8 pm
Saturday Closed
Sunday 4–6 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 Square One Jiu Jitsu Academy, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 7 mentions

“They are friendly, direct and playful in their instruction during kids classes.”

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🏆 Competition Team

“He is the most open minded guy I’ve ever met on the mats, funny, meticulous, passionate and very technical Jiu-Jitsu competitor and Instructor.”

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🔓 Open Mat

“The class time selection is the best I've come across, especially with their Sunday Open Mat.”

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🛡️ Self-Defense

“Thank you, Square One for creating an awesome spot for our kids to learn self defense and practice discipline 🙌”

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🌱 Beginners 4 mentions

“Coach Heidi and Professor Josh do a fantastic job breaking down specific details of how to execute on the mats while maintaining safety at all levels.”

All gyms that run beginners →

What members say

The things reviewers bring up again and again across 74 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 6 mentions

“Great crew of people, Instructor is very laid back and knowledgeable and the gym is very learning oriented.”

🌱 welcoming to beginners 9 mentions

“Coach Heidi and Professor Josh do a fantastic job breaking down specific details of how to execute on the mats while maintaining safety at all levels.”

🤝 no-ego, friendly academy 10 mentions

“Having previously trained with Josh, he is incredibly welcoming to all levels in jiu jitsu.”

📘 strong technique & fundamentals 3 mentions

“Coach Heidi and Professor Josh do a fantastic job breaking down specific details of how to execute on the mats while maintaining safety at all levels.”

🧒 strong kids program 2 mentions

“Highly recommend the kids program here!”

active competition team 2 mentions

“He is the most open minded guy I’ve ever met on the mats, funny, meticulous, passionate and very technical Jiu-Jitsu competitor and Instructor.”

From the reviews

My experience with Square One Jiu Jitsu has been fantastic! The instructor is friendly, knowledgeable, and easy to learn from. The other students have been fun to work with and help me learn along the way, and I love the progress I'm seeing in just over a month!

★★★★★ — Greg, Feb 2025

It can be intimidating trying something new, especially something like jiu jitsu. Having previously trained with Josh, he is incredibly welcoming to all levels in jiu jitsu. He combines an easy-going atmosphere with exceptional coaching to match the level of experience of his students.

★★★★★ — Michelle, Aug 2023

Coach Heidi and Professor Josh do a fantastic job breaking down specific details of how to execute on the mats while maintaining safety at all levels. They are friendly, direct and playful in their instruction during kids classes. Highly recommend the kids program here!

★★★★★ — Kaitlyn, Jun 2026

My children did a trial class. All came away with raving reviews, and now we're going twice a week! They loved Coaches Josh and Heidi. Both coaches did good meeting the kids where they were and helping them with success and failure! It's a great work out but is also working on discipline.

★★★★★ — Stephanie, Oct 2024

Excerpts from public Google reviews. Read all 74 reviews →

New to BJJ? Start at Square One Jiu Jitsu Academy

Square One Jiu Jitsu Academy 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.

Check beginner classes on their site

Your first BJJ class at Square One Jiu Jitsu Academy

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 Square One Jiu Jitsu Academy

2 SW 4th St Ste d, Lee's Summit, MO64063

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.