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Core Jiu Jitsu

5 ★★★★★ 24 Google reviews · BJJ gym in Nampa, Idaho

BJJ gym Free trial Beginners welcome Kids & teens Private lessons 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
  • 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
  • Competition team a competition team for members who want to test themselves at tournaments
  • Today see hours ·
  • Website & schedule corejjidaho.com — book classes and see the live schedule

Hours

Monday 4–8 pm
Tuesday 4–8 pm
Wednesday 5–8 pm
Thursday 4–8 pm
Friday 4–8 pm
Saturday Closed
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 Core Jiu Jitsu, confirmed in members' own reviews and the gym's own info — not guessed from the sign out front.

📘 Fundamentals 2 mentions

“The systematic approach to fundamentals makes the learning process smooth for newcomers, but there’s plenty of depth for experienced people too.”

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🧒 Kids BJJ 16 mentions

“The owners are so kind, well versed and knowledgeable, my son LOVES going to class and learning.”

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💪 Women's BJJ

“As a woman and a mom, I value knowing that my kids are learning how to be aware of their surroundings and carry themselves with confidence.”

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Teens BJJ

“It is rare to find a martial arts academy where kids, teens, and adults can all train, grow, and feel supported in the same family-friendly environment.”

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🏆 Competition Team 4 mentions

“Core Jiu Jitsu Academy is an exceptionally clean, family-friendly Brazilian Jiu Jitsu gym with an outstanding training environment for both beginners and experienced competitors.”

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👤 Private Lessons 2 mentions

“I felt my game was plateauing at my previous gym, and I wasn’t getting the one on one help I needed to fix the missing links in my game.”

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🛡️ Self-Defense 5 mentions

“The coaches do an incredible job teaching real self-defense in a way that helps kids understand body awareness, situational awareness, boundaries, and self control.”

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🌱 Beginners 2 mentions

“Core Jiu Jitsu Academy is an exceptionally clean, family-friendly Brazilian Jiu Jitsu gym with an outstanding training environment for both beginners and experienced competitors.”

All gyms that run beginners →

What members say

The things reviewers bring up again and again across 24 Google reviews — in their own words.

🧑‍🏫 expert, high-level coaching 6 mentions

“Jayson is an incredible instructor who really goes out of his way to help everyone understands the moves and concepts.”

🌱 welcoming to beginners 10 mentions

“Core Jiu Jitsu Academy is an exceptionally clean, family-friendly Brazilian Jiu Jitsu gym with an outstanding training environment for both beginners and experienced competitors.”

🤝 no-ego, friendly academy 39 mentions

“Core Jiu Jitsu Academy is an exceptionally clean, family-friendly Brazilian Jiu Jitsu gym with an outstanding training environment for both beginners and experienced competitors.”

📘 strong technique & fundamentals 7 mentions

“The systematic approach to fundamentals makes the learning process smooth for newcomers, but there’s plenty of depth for experienced people too.”

🧒 strong kids program 2 mentions

“I love that my kids are learning confidence, respect, focus, discipline, and how to handle themselves both physically and mentally.”

active competition team 5 mentions

“Core Jiu Jitsu Academy is an exceptionally clean, family-friendly Brazilian Jiu Jitsu gym with an outstanding training environment for both beginners and experienced competitors.”

From the reviews

I’ve loved being a part of Core Jiu Jitsu since the day they opened. From the start, this place has been more than just a gym it’s a real team and a real community. Jason is an outstanding teacher and mentor.

★★★★★ — Reece, Jan 2026

We love being a part of this academy. Professor Jason is amazing. Such a great instructor, very thorough and patient. Great with the kids. The facility is always very clean and always has a welcoming vibe. Sheri and Jason are always approachable and so easy to talk to.

★★★★★ — Erika, Feb 2026

Core Jiu Jitsu Academy is an exceptionally clean, family-friendly Brazilian Jiu Jitsu gym with an outstanding training environment for both beginners and experienced competitors. Whether you’re looking to train jiu jitsu casually or compete at a high level, Core Jiu Jitsu offers a welcoming and professional atmosphere.

★★★★★ — Nate, Dec 2025

While I haven't had an opportunity to train here yet, I have trained with head instructor Jayson Kira and he is excellent as a BJJ practitioner and instructor and a great human being. If you are in the area, I highly recommend you check out his academy.

★★★★★ — Tony, Nov 2025

Excerpts from public Google reviews. Read all 24 reviews →

New to BJJ? Start at Core Jiu Jitsu

Core Jiu Jitsu 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 Core 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. 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 Core Jiu Jitsu

1124 1st St S, Nampa, ID83651

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.