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Two students in gis grappling on a mat in a dim training hall, silhouetted against tall windows
Two students in gis grappling on a mat in a dim training hall, silhouetted against tall windows
Two students in gis grappling on a mat in a dim training hall, silhouetted against tall windows

Martial arts academy in Denver since 2012

Next free class: Monday 6:00 PM, Adult Fundamentals

Next free class: Mon 6 PM, Fundamentals

Everyone
starts as a
white belt.

Brazilian jiu-jitsu, Muay Thai, MMA and kids karate on Walnut Street in RiNo. Five coaches, two mats, and your first class costs nothing.

First class free

Ages 5 to adult

24 classes a week

3640 Walnut St, Denver

Tale of the tape

Mat space

2,400 sq ft

Coaches

5

Black belts on staff

3

Open since

2012

A student in a white gi kneeling and bowing onto a dark mat

Monday, 5:50 PM, before Fundamentals

Mon 5:50 PM, before class

Try it
before you join.

Most members take one free class before they sign up. Here is exactly how that hour goes, from the front desk to the bow at the end.

01

Pick a class

Find your age on the schedule, or tell us on the form and Shea will suggest one. Most adults start in Fundamentals, most kids in Kids Karate.

02

Come fifteen minutes early

Wear athletic clothes with no zippers. We lend you a clean gi or gloves and shin guards, and parents can watch from the bench beside the mat.

03

Stay if it clicks

Kids memberships start at $139 a month, adults at $189. Join the same week as your free class and we waive the $49 enrollment fee.

Tenmile Martial Arts presents

The fifteenth winter promotion

Mat A, 3640 Walnut St

Belt Promotion

Belt Promotion

Belt Promotion

Saturday

Dec 12, 2026

Dec 12, 2026

Mat opens

10:00 AM

10:00 AM

Entry for families

Free

Free

Potluck

12:30 PM

12:30 PM

Running order

01

Kids Karate belt test

Morning

02

Junior Karate belt test

03

Kids self-defense demo

04

Muay Thai armband grading

Midday

05

Jiu-jitsu stripes and belts

06

Every member, one team photo

Finale

A line of karate students in white uniforms kneeling in seiza before a belt test

Last winter, kids first

No test fees, ever. Your coach decides.

Five coaches.
All still train.

Joaquim opened the academy in 2012 with one mat and eleven students. Every coach still trains, competes or corners fighters, and teaches the classes they know best.

A fighter in gloves standing in a beam of light in a dark gym
A fighter in gloves standing in a beam of light in a dark gym

4.9 from 260 Google reviews

Tuesday night jiu-jitsu, last round

“I walked in at 41 having never thrown a punch. Two years later I have a blue belt, and my kids train here on Saturday mornings.”

Marisa L.

Member, Brazilian Jiu-Jitsu, blue belt

Tuesday night
at 3640 Walnut.

Two mats, 2,400 square feet of tatami, fourteen heavy bags and a bench for parents. Photos from this fall’s classes and last winter’s promotion.

Kids in white uniforms lined up on the mat at the start of class, black and white

Kids Karate, line-up

Hands in red wraps holding a yellow mouthguard before class

Hand wraps, 5:50 PM

A Muay Thai student throwing a high kick in the ring

High kicks on Mat B

Two students in gis rolling on a wide mat while others train in the background

Open mat, Sunday morning

A student tightening an embroidered black belt over a white gi, black and white

Black belt, promotion day

Kids in white uniforms lined up on the mat at the start of class, black and white

Kids Karate, line-up

Hands in red wraps holding a yellow mouthguard before class

Hand wraps, 5:50 PM

A Muay Thai student throwing a high kick in the ring

High kicks on Mat B

Two students in gis rolling on a wide mat while others train in the background

Open mat, Sunday morning

A student tightening an embroidered black belt over a white gi, black and white

Black belt, promotion day

Membership.

(per member, per month)

One monthly price for every class in your program. No contracts. Cancel with 30 days’ email notice.

A black heavy bag hanging from a chain in a dark gym

Kids karate

Two classes a week, ages 5 to 13

$139

/mo

Adult unlimited

The plan most members pick

$189

/mo

Family

Two members in one household, any program

$319

/mo

Drop-in class

Visitors 18 and up, bring your own gear

$30

each

Enrollment

Once, waived the week of your free class

$49

once

Each extra family member $99. Military, teachers and first responders 10% off. Private lessons $85.

Questions.

Still wondering about something? The front desk answers email within one business day.

A karate black belt in a ready stance against a dark background

What should I wear to my first class?

Athletic clothes without zippers or pockets, and bring water. For jiu-jitsu we lend you a clean gi; for Muay Thai we have loaner gloves and shin guards. Kids wear a T-shirt and sweatpants until their uniform arrives.

Which class is right for my child’s age?

Is the first class really free?

Do I need to be fit before I start?

Will I have to spar?

What if I miss a class?

An empty gym with a boxing ring, hanging bags and a wooden floor
An empty gym with a boxing ring, hanging bags and a wooden floor

3640 Walnut St, Denver, CO 80205

Mon-Fri 6 AM-9 PM, Sat 9 AM-2 PM

First class
on the house.

Pick any class on the schedule and come fifteen minutes early. We confirm your spot by email within one business day.

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