Dark Matter Jiu-Jitsu | Kids & Adult BJJ in Tempe, AZ | Free Trial Class
Tempe's Home for BJJ

BUILD INVISIBLE
STRENGTH ON
THE MATS

Adult and Kids Brazilian Jiu-Jitsu in Tempe, Arizona — proudly serving families from Mesa, Chandler, Gilbert, Scottsdale, Ahwatukee, Guadalupe, and East Phoenix. Real self-defense. Real confidence. Your first class is on us.

Claim Free Trial → 📞 (480) 702-1178
5★ Google Rating
ALL LEVELS Welcome
6 DAYS Per Week
✦ No Experience Needed

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Why Dark Matter

NOT JUST A GYM.
A TRAINING GROUND.

Whether you're stepping on the mats for the first time or chasing competition gold, this is where the work gets done.

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BEGINNER-FRIENDLY

Never trained before? Perfect. Our structured curriculum means you'll learn the right way from day one — no getting thrown to the wolves.

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REAL SELF-DEFENSE

Jiu-Jitsu is the most effective martial art for real-world self-defense. Learn to protect yourself and your family with techniques that actually work.

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ADULTS & KIDS

Programs for the whole family. Kids build discipline and confidence. Adults get in the best shape of their life. Train at the same gym.

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FLEXIBLE SCHEDULE

Morning, evening, and weekend classes. Six days a week of training so you can find the times that fit your life — not the other way around.

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TEAM CULTURE

This isn't a fight gym. It's a team. We push each other, look out for each other, and celebrate every step forward — white belt to black belt.

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HEART OF TEMPE

Located right on Apache Blvd near ASU. Easy to get to, easy to park, and right in the middle of the Tempe community we're proud to serve.

Your Coach

MEET COACH KOREY

Coach Korey demonstrating a jiu-jitsu technique with a student during class at Dark Matter Jiu-Jitsu in Tempe

KOREY KERBER

Black Belt • Head Instructor

I've been training jiu-jitsu for 14 years and coaching for over 10. I'm a black belt under Osvaldo "Queixinho" Moizinho, co-founder of Ares BJJ, and I've competed at American Nationals, the Phoenix Open, Fight to Win, Pans, Worlds, and more.

I opened Dark Matter because coaching is the part of jiu-jitsu I care about most. I like helping people who've never done this before figure it out — breaking things down step by step until it clicks.

With kids, I keep class fun but structured — they have to want to come back, but it's a martial arts class, not recess. Getting them off a screen and onto the mats, teaching them discipline and focus, and helping shape these kids into good people is the part of this job that gets me up in the morning.

If you've never trained before, that's exactly who this gym was built for.

14+
Years Training
10+
Years Coaching
11
Team Trophies
Read Full Bio →
Our Programs

FIND YOUR PATH ON THE MATS

Two focused programs. One mission: help you become the strongest version of yourself.

Adult BJJ gi drilling at Dark Matter Jiu-Jitsu Tempe
No Experience Needed

ADULT JIU-JITSU

Never trained before? You're in the right place. Our Fundamentals classes are designed for day-one beginners. Learn the basics at your own pace, train with people who were in your shoes last year, and never feel pressured to do more than you're ready for.

  • No previous experience required — ever
  • Dedicated Fundamentals classes for beginners
  • Live rolling is always optional until you're ready
  • Most members started with zero experience
  • Gi & No-Gi training available
  • First class is free — no contracts, no commitment
Learn More About Adult BJJ → Or book your free trial now
Dark Matter Cadets kids jiu-jitsu group photo Tempe Arizona
Ages 5–14

KIDS JIU-JITSU

The East Valley's top-rated kids martial arts program. Give your child the gift of confidence, discipline, and real self-defense skills. Parents from Tempe, Mesa, Chandler, and Gilbert trust Dark Matter to build character on and off the mats.

  • Age-appropriate self-defense curriculum
  • Anti-bullying skills & awareness
  • Focus, discipline & respect
  • Fun, safe training environment
  • After-school class times (5:00 PM)
  • Watch your child's confidence grow
Learn More About Kids Classes → Or book your free trial now
Class Schedule

FIND A CLASS THAT FITS

Morning, evening, and weekend options so training works around your life.

ADULT JIU-JITSU

Monday9:00 AM — No-Gi Fundamentals6:00 PM — Gi Fundamentals7:00 PM — Live Rolling
Tuesday5:00 PM — No-Gi Fundamentals6:00 PM — No-Gi All Levels
Wednesday9:00 AM — No-Gi Fundamentals6:00 PM — Gi Fundamentals7:00 PM — Live Rolling
Thursday5:00 PM — No-Gi Fundamentals6:00 PM — No-Gi All Levels
Friday6:00 PM — Gi Fundamentals7:00 PM — Open Mat
Saturday11:00 AM — No-Gi All Levels12:00 PM — Open Mat

KIDS JIU-JITSU

Monday 5:00 PM
Wednesday 5:00 PM
Friday 5:00 PM
What People Say

DON'T TAKE OUR WORD FOR IT

Hear from real students and parents who train at Dark Matter.

★★★★★

"Showed up without any prior martial arts or BJJ experience, and the entire gym was very welcoming to newcomers. Have been going 9 months now and can't picture going anywhere else. Korey is a very high level practitioner and a great instructor, makes learning jiu-jitsu a great experience. Whether you are just getting started or experienced, this is the place to be."

— Connor Davis

Google Review · 5.0 ★

★★★★★

"We come here for their kids jiu-jitsu program. All I can say is... AMAZING!!! We've been bringing our 8 year old son here for about 4 months now and it's been amazing watching him grow and learn here at Dark Matter. Korey is one of the best and most patient instructors I've ever seen. Truly passionate about teaching the kids and helping them truly learn the art of jiu-jitsu."

— Aaron Buschell

Google Review · 5.0 ★

★★★★★

"Been training for about a year, with no prior experience. I love it here. The people, the instruction, the vibe is just so good. Coach Korey is not only a high level jiu-jitsu athlete himself, he's also an incredible instructor. I'm always asking questions, and he consistently gives clear and helpful tips. If you're curious about getting into BJJ, this is the place."

— Tanner Hochberg

Google Review · 5.0 ★

Read All Reviews on Google →

YOUR FIRST CLASS IS FREE

No contracts. No pressure. Just show up, train, and see if Dark Matter is the right fit for you.

Claim Your Free Trial → 📞 Call (480) 702-1178
Find Us

LOCATED IN THE HEART OF TEMPE

VISIT DARK MATTER JIU-JITSU

📍
1525 E Apache Blvd
Tempe, AZ 85281
📞
(480) 702-1178
Call or text anytime
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Training 6 Days a Week
Mon–Fri + Saturday
🅿️
Free parking available
Get Directions →

GET STARTED TODAY

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