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Atlas Jiu Jitsu Waltham

5 ★★★★★ 229 Google reviews · BJJ gym in Waltham, Massachusetts

BJJ gym Free trial Beginners welcome Kids & teens 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 (ages 4–15) — built around discipline, focus, and confidence
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule atlasjiujitsu.com — book classes and see the live schedule
  • Phone (518) 391-0891

Hours

Monday 11 AM–8 PM
Tuesday 5:30–8:30 PM
Wednesday 11 AM–8 PM
Thursday 5:30–8:30 PM
Friday 11 AM–7:30 PM
Saturday 11 AM–1 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 Atlas Jiu Jitsu Waltham, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

🧒 Kids BJJ 13 mentions

“My son is gentle by nature and feels uncomfortable with aggression and confrontation in team sports, which is one of the main reasons I signed him up.”

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🏆 Competition Team

“Check out these belts and medals!”

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🛡️ Self-Defense

“I went to a women’s self defense seminar at Atlas and found it SO HELPFUL, and it was such a fun way to spend a Saturday morning with friends!”

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🌱 Beginners 4 mentions

“The gym has a professional and welcoming atmosphere, with detailed instruction that benefits both beginners and experienced students.”

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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 Atlas Jiu Jitsu Waltham — 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 229 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 6 mentions

“Aidan is an excellent instructor who does a great job explaining techniques and helping everyone improve no matter their experience level.”

🌱 welcoming to beginners 6 mentions

“The gym has a professional and welcoming atmosphere, with detailed instruction that benefits both beginners and experienced students.”

🤝 no-ego, friendly academy 13 mentions

“Professor Aidan Sericola is a friendly and knowledgeable Professor and definitely worth trying a class with if you have the opportunity.”

📘 strong technique & fundamentals 4 mentions

“Aidan is an excellent instructor who does a great job explaining techniques and helping everyone improve no matter their experience level.”

🧒 strong kids program 2 mentions

“The instructors are patient, knowledgeable, and truly great with kids.”

active competition team 3 mentions

“Had the chance to have Coach Aidan coach me in a BJJ competition, he was absolutely fantastic and even inspired me to start my quest to become better at Brazilian Jiu Jitsu.”

From the reviews

A: Awesome I: Intelligent D: determined to help you get better at BJJ A: Awesome again N: Never late Aidan is truly one of the best people i have ever met in my life and I genuinely look forward to when he teaches class in Albany. Waltham is getting a great guy and instructor!! Check out Atlas if you are in the area!

★★★★★ — Creedence, Dec 2023

Got a membership to Atlas about a month and a half ago after trying out the free class trail. This place is the first place I have ever trained BJJ and they are very beginner friendly from the coach all the way to the team. The thing that I like the most at Atlas is the atmosphere is great, friendly, and competitive.

★★★★★ — Andrew, Nov 2025

Aiden is a true professional and deeply cares about the kids he’s molding! My son is 2 months into Atlas JiuJitsu and goes 2x a week. He absolutely loves the opportunity to learn each week in class! Aiden was kind enough to even volunteer to come to Goddard in Weston and help my son do a live demonstration!

★★★★★ — Erin, Apr 2026

I signed my 4 year old son up for jiu jitsu about 2 months ago after his one trial class. We are so happy with the class, it incorporates both discipline and fun. My son actually looks forward to going and enjoys every second he is there. I have also noticed a boost in his confidence since starting the program.

★★★★★ — Olivia, Aug 2025

Excerpts from public Google reviews. Read all 229 reviews →

New to BJJ? Start at Atlas Jiu Jitsu Waltham

Atlas Jiu Jitsu Waltham 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 Atlas Jiu Jitsu Waltham

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 Atlas Jiu Jitsu Waltham

1254 Main St, Waltham, MA02451

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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.