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

Five coaches,
one mat.

Every Tenmile coach still trains, competes or corners fighters. They teach the way they were taught at their best: patiently, technically and with a lot of respect for the tap.

Founded by Joaquim Sardinha

5 programs

Coaching since 2006

Three black belts on staff

Portrait of Joaquim Sardinha in a gi, black and white

Founder, Head Coach

Joaquim Sardinha

Joaquim started training in Belo Horizonte at fifteen and moved to Denver in 2009. He opened Tenmile in 2012 with one mat and eleven students, and still teaches the Tuesday and Thursday night classes himself.

Rank

Third-degree black belt in Brazilian jiu-jitsu

Signature class

Brazilian Jiu-Jitsu, Tuesday 7:15 PM

Programs

Brazilian jiu-jitsu, self-defense

Coaching since 2006

Portrait of Pim Rattanakorn in boxing gloves

Head Muay Thai Coach

Pim Rattanakorn

Pim grew up training at a camp outside Chiang Mai and fought professionally for nine years before she started coaching. She teaches the old way: lots of pad rounds, clean technique and respect for your partner.

Rank

Kru, 41 professional Muay Thai bouts

Signature class

Muay Thai, Tuesday 6 PM

Programs

Muay Thai, clinch, conditioning

Coaching since 2010

Portrait of Kofi Mensah in a black shirt

MMA and No-Gi Coach

Kofi Mensah

Kofi wrestled in college, then fought seven amateur MMA bouts before turning to coaching. He runs the fight team and the no-gi classes, and he is the reason our takedown defense is good.

Rank

Black belt in Brazilian jiu-jitsu, college wrestler

Signature class

MMA, Friday 6 PM

Programs

MMA, no-gi, wrestling

Coaching since 2014

Portrait of Trina Kimball in a karate stance

Kids Program Director

Trina Kimball

Trina taught second grade for eight years before running kids martial arts full time. Her classes mix real karate with focus games, and every child knows exactly what their next stripe takes.

Rank

Fourth-degree black belt in Shotokan karate

Signature class

Kids Karate, Saturday 9 AM

Programs

Karate, kids self-defense

Coaching since 2008

Portrait of Shea Brannigan with a boxing glove raised

Fundamentals Coach

Shea Brannigan

Shea walked into Tenmile in 2014 as a nervous beginner. Now she teaches the class she wishes she had taken first: slow, clear and built for people who have never thrown a punch.

Rank

Brown belt in Brazilian jiu-jitsu

Signature class

Adult Fundamentals, Monday 6 PM

Programs

Fundamentals, women’s self-defense

Coaching since 2017

Hard training, kind rooms.

Technique before toughness

We explain why a move works, so you can fix it yourself instead of muscling through it.

Every body belongs on the mat

No ego and no weigh-ins outside the fight team. Partners are matched by size and experience.

Tap early, tap often

Nobody gets hurt to prove a point. Coaches stop any round that gets sloppy, from the kids mat to the fight team.

An instructor demonstrating a throw on two students in a traditional dojo

3640 Walnut St, Denver, CO 80205

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

Meet them
on the mat.

Your first class with any of our five coaches is free. Book a time that suits your week.

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