We are now METCON Long Beach

Metcon is a nod to our CrossFit roots. It’s short for “Metabolic Conditioning”. This is essentially working out at an intensity high enough to increasing the metabolic demand (challenging your body’s energy systems) and increasing energy usage (Burn more calories).

If you want to get your heart rate up, sweat a bit, and walk out feeling energized and like you actually worked out…. this is your place!

Why did we change our name?

We were previously “CrossFit Belmont Heights” and we were the first CrossFit gym in Long Beach. However, in June of 2020, things came to light about the CEO and creator of CrossFit, that was against what we, and our gym community, stand for. In protest of this behavior, we have decided to drop the “CrossFit” from our name.
We still believe in CrossFit as a workout philosophy. 
It has not only changed the fitness industry landscape, but it really has helped so many people get fit. However, after 8 years as a CrossFit gym, we’ve found ways to make things more inclusive, a little less intimidating,  in how we put together workouts.
We do this by having different equipment options to the same workout. You can pick from a Barbell, Dumbbell, Kettlebell, or Bodyweight.
This helps us cater to a wide variety of Athlete! In fact, anyone can walk through our door right now and have a fun and safe workout with us, from the avid CrossFitter, to the person just trying to get back into a routine.

A new Vision of fitness, called METCON

As Long Beach’s premier fitness facility, you’ll immediately notice that our facility and equipment are top of the line, our gym is clean, and our members and coaches create a friendly atmosphere.
We also enforce a new mandated L.A. County cleaning Covid protocols every class. See those here (link to covid protocols once it’s made)
Our athletes will hang out after a workout, just to hang out. Since we recognize how organic and special our community is, our top priority is nurturing our unique environment—because that’s the real reason “Metcon LB” has been and will continue to be around for a long time.


What a difference a good coach makes. At Metcon Long Beach, our team is filled with some of the most knowledgeable and experienced professionals in the industry. You won’t find a more dedicated group of trainers who are genuinely invested in your goals. With our help, you’ll do more than succeed, you’ll excel!


Nick Marantz

Owner / Coach

Nick grew up with an active lifestyle that started with a love of soccer. After graduating high school in 1996, he joined the United States Marine Corps and pursued his education at California State University, Long Beach. While there, he was the coxswain for the Varsity Beach Crew and competed on the men’s soccer team. After two years, he transferred to Santa Ana College and earned an A.S. in Fire Science with hopes of becoming a firefighter.

In 2003, Nick was sent to Iraq as part of Operation Iraqi Freedom. During his deployment, he conducted combat operations, which later earned him a Combat Action Ribbon. When Nick returned from his tour, he joined the City of Long Beach as a firefighter and paramedic. In 2010, he was introduced to CrossFit by one of his peers, and he’s been hooked ever since!


CrossFit Level I,
CrossFit Olympic Lifting
CrossFit Mobility Course
USA Weightlifting Sports Performance Coach


Jess Marantz


Jess is a longtime CrossFit and yoga enthusiast. In high school, her mom introduced her to fitness classes which sparked her love of physical activity. Later, she attended California State University, Fullerton where she obtained a B.S. in Kinesiology and embarked on a career in physical therapy. After four years in the industry, Jess needed a change of pace. She took a leap of faith and shifted her focus to yoga.

With just 6 months of practice under her belt, Jess knew yoga was her calling. Soon, she met with Nick and began CrossFit training in his garage. That same year, CrossFit Belmont Heights opened its doors and Jess found her happy place. She loves CrossFit, she loves yoga, and now she can have them both!


200-Hour Yoga Teacher Training
CrossFit Gymnastics
CrossFit Level I
CrossFit Mobility
CrossFit Olympic Lifting
USA Weightlifting Sports Performance Coach




Ivan fell in love with Crossfit in 2012. Ever since then it’s been the Box all day. Going into his 4th year Coaching CrossFit, he specializes and enjoying Olympic lifting the most. As an Athlete, Ivan qualified for Rogue American Open for 2 consecutive years.

Ivan has holds an Associates degree in nursing from West Coast University.

Fun fact: Ivan had a personal transformation of 50lbs!


Amanda Brown



Edmond Ercout


Originally from Orange County, CA, Edmond’s spent the last few years focusing on school and fitness. In 2013, after watching the CrossFit Games, he was inspired to join a local affiliate. After two years of training, he opted to take it to the next level and become an official coach. Edmond briefly worked at a box in New York City, before returning to California to coach full-time. When he’s not in the gym, he’s up to his eyeballs studying computer science.


CrossFit Level I
USA Weightlifting Sports Performance
Opex CCP Level 1 in progress


Tami Chick


Coach Tami is a veteran CrossFit athlete with over a decade of experience. Her athletic career began at Cal Poly Pomona, where she competed in Division II basketball and volleyball. The latter of which earned her the distinction of All-American. She also studied Kinesiology where she earned a Bachelor’s Degree that would lay the foundation for her future endeavors.

To date, Tami is a 24-year veteran of the Los Angeles Fire Department and is ranked as a Captain II. She was also named 57th in the world at the 2016 Open, Masters (45-49 Division). When she’s not changing lives in the field, she’s doing it in the gym. Tami spends her free time taking classes, journaling her workouts, and helping athletes improve their technique. "Seeing them experience a personal victory is so meaningful to me. Getting to be an instrument in that is truly amazing."


CrossFit Level I
CrossFit Olympic Lifting
CrossFit Mobility Course
USA Weightlifting Sports Performance Coach

Success Stories

Our members’ success is our success. Here are some of the achievements we’ve celebrated with our awesome community here a Metcon Long Beach. We love to see our members crush their goals!


Try an intro class for free!

Whether you’re new to Crossfit-style workouts or a Seasoned Pro, come and try us out for free…

Try a class for free!

Whether you’re new to Crossfit-style workouts or a Seasoned Pro, come and try us out for free…