Performance

HYROX Sim

Class is for all levels

800 (estimated)

Want to get ahead of the competition? HYROX Sim is a workout designed to get you acclimatised to the structure and intensity of race day, before the main event. Combining running and functional exercises in the same sequence used in competition, this HYROX simulation class builds endurance, pacing and confidence. With our coaches on hand with pro hints, tips and guidance, expect to leave feeling pumped, prepped and with your eyes firmly on the prize.

What to expect from the class

Full HYROX race-style simulation workout
Structured as run + workout station intervals
Combines SkiErg, sled work, rowing and wall balls
Includes movements like burpee broad jumps and carries
Progressive fatigue to replicate competition conditions
Focus on pacing, transitions and mental resilience
Designed to prepare you for the demands of a HYROX race

Experience HYROX Sim at Fitness First

Training in HYROX classes at Fitness First gives you access to a structured, supportive environment where performance and progression come first. Coaches provide expert guidance to help you refine pacing, transitions and technique throughout each HYROX simulation. The group training format creates energy and accountability, helping you stay consistent and motivated. Find a HYROX simulation class near you by exploring our timetable. All classes are included free with your membership.

Train like a HYROX athlete

No matter your fitness level, HYROX is built for every body. Our classes build the strength, endurance, and technique to push your limits safely and effectively, all within a community of like-minded athletes who show up and push harder together.

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Frequently asked questions about HYROX

What is HYROX Sim?

HYROX Sim is a simulation class that mirrors the format of a real HYROX race. It combines running intervals with functional workout stations to help you understand pacing, transitions and effort levels required during competition.

Is HYROX Sim suitable for beginners?

HYROX Sim classes can be adapted for different fitness levels, but a base level of fitness is recommended. Instructors provide guidance and scaling options so you can complete the workout safely while building confidence with HYROX training.

What are the benefits of a HYROX simulation workout?

A HYROX simulation helps improve endurance, pacing and race-day readiness. It allows you to practise transitions between running and functional exercises, build stamina and develop confidence in a class environment.

How often should I do HYROX Sim?

Taking part in HYROX classes one to two times per week can help build endurance and familiarity with the race format. Regular sessions improve consistency, pacing and overall performance while supporting progress towards events.

What should I wear to a HYROX class?

Wear comfortable training clothing that allows for running and strength-based movements. Supportive trainers are essential, along with a water bottle and towel to stay prepared throughout your class.

Do I need to bring anything to HYROX Sim?

All essential equipment is provided in the gym. You only need to bring appropriate workout gear, trainers, water and a towel. Arriving ready to train allows you to focus on performance and getting the most from your simulation session.

Members Stories Worth Celebrating

Check out what are members are saying about HYROX at Fitness First

Book your HYROX class

"Hyrox with Ralph is 10/10! Every week he pushes us to be better! It's brilliantly brutal - yet we always come back! Thank you Ralph :)" — Ellie, Fitness First Bishopsgate

"I weighed almost 150kg and new something had to give. I chose to return back to Fitness First and felt it was where I belong. I started entering HYROX and finding my stride again." Karl - Fitness First Basingstoke

"Matt's Hyrox class is the only thing that could get me out of bed pre-6am - the most challenging but rewarding workout there is!" — Emily, Fitness First Baker Street