RELENTLESS BOXING AND FITNESS DUNMOW

Serving Great Dunmow, Bishop’s Stortford, Essex & East Herts

Relentless Boxing & Performance Centre Dunmow combines authentic boxing with modern performance training in a welcoming, community-driven environment.

Conveniently located just minutes from Bishop's Stortford, we welcome members from across Great Dunmow, Takeley, Felsted, Great Notley, Braintree, Saffron Walden, Stansted and East Hertfordshire.

Built on the same coaching philosophy that established our Hackney gym, our Performance Centre offers far more than boxing. Whether your goal is to learn to box, build strength, improve your fitness, prepare for HYROX, lose weight or simply train in a motivating environment, our experienced coaches are here to help you progress.

Classes & Services

  • Boxing Classes

  • Strength & Conditioning

  • Engine

  • HYROX Training

  • Open Gym

  • Personal Training

  • NextGen Boxing

  • YoungStars Athletic Development

What Our Members Say

"What a great place for boxing! My 10-year-old daughter has been to a few classes and loves it. It was my 7-year-old son's first session, and he absolutely loved it—he's already asking to come back! Angelo is fantastic with the kids and a great coach. If you or your children want to get fit, get yourselves down to Relentless Boxing."

ADULTS PRICES

  • A woman wearing boxing gloves practicing a punch on a punching bag in a gym with wooden beams and brick wall. She has a determined expression.

    Relentless Adults Trial Membership – £30 for 30 Days

    New to Relentless? Try us out with our 30-day Trial Membership for just £30.

    This trial gives you unlimited access to all classes for 30 days, so you can experience our training, coaching, and community with no long-term commitment.

    Please note:

    Available to new customers only

    Cannot be purchased alongside the Beginner Boxing Programme

    You may choose either the Trial Membership or the Beginner Boxing Programme — not both

    Perfect for those who want to explore everything Relentless has to offer before committing.

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  • Beginner Boxing Programme

    £119

    Start your boxing journey with our Beginner Boxing Programme — the perfect way to build your foundation and gain confidence in the ring. During the classes, you’ll learn essential techniques while improving your fitness in a fun, supportive environment.

    What’s included:

    Unlimited classes for one month

    1 pair of boxing gloves(colour subject to availability)

    1 pair of boxing wraps(colour subject to availability)

    1 45 minutes personal training session

    👉 Please note:

    Available to new customers only.

    Classes must be completed within one month of activation.

    You may choose either this Beginner Boxing Programme or the Trial Membership — it’s not possible to purchase both.

    Take the first punch toward your goals — sign up today!

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  • A woman with tattoos on her arms and wearing workout clothes, including gloves, is exercising with a cable machine outdoors during sunset, with silos and trees in the background.

    Open Gym Membership - £45/month

    Train on your schedule with full access to both the Relentless Boxing Gym and our Relentless Performance Centre.

    Whether you're preparing for boxing, HYROX, improving your strength and conditioning, or simply looking to stay fit, our Open Gym Membership gives you the freedom to train using professional-level equipment in a welcoming environment.

    Equipment includes:

    • Boxing bags and boxing training area

    • Dumbbells

    • Power racks

    • Sled push & sled pull

    • Kettlebells

    • Sandbags

    • Rowers

    • Assault bikes

    • SkiErgs

    • HYROX training track

    • Wall balls & wall ball targets

    Access Information

    • Open Gym sessions are available from 4:00am to 10:00pm.

    • Sessions are booked in 2-hour slots and are available outside of scheduled class times.

    • Members will need to request a personal access code before using the facility.

    • Please ensure all equipment is returned to its designated place after use and help us keep the gym clean and ready for everyone.

    Train when it suits you and make the most of everything Relentless has to offer.

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  • A man in a blue shirt practicing boxing on a black punching bag with orange accents in a gym. The gym has wooden beams and walls, with a poster or sign visible in the background.

    Unlimited Membership – £79/month

    Our Unlimited Membership gives you full access to all of our weekly adults classes and open gym, empowering you to achieve your fitness and boxing goals with the support of our expert Relentless trainers.

    Membership Benefits

    Unlimited classes

    Unlimited open gym

    10% off Relentless merchandise

    10% off Personal Training (valid for Pay-As-You-Go sessions only)

    Bring a Friend for Free: Their first class is on us

    Flexible scheduling – book multiple classes per day if space is available

    Membership Terms

    No minimum commitment – rolling monthly contract

    30 days’ written notice to cancel via email to info@relentlessboxing.com

    Memberships auto-renew each month

    Children under 14 are not permitted to attend adult classes

    Cancellations: Classes must be cancelled at least 6 hours before the start time, otherwise a £6 fee will apply

    Please Note

    Standard access is one class per day, with the option to join multiple classes in a single day if space is available and at the coach’s discretion

    Join today and start your journey to becoming your best self with Relentless Unlimited.

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  • A woman practicing boxing in a gym, wearing pink boxing gloves and hitting a punching bag. The background shows gym equipment and a wooden ceiling. The text on the image reads, "It’s FUN! Learn to box • Build confidence • Join the empowerment".

    Limited 8 Membership - £59/month

    Our Limited 8 Membership gives you access to 8 adult classes per month, helping you train consistently while working towards your fitness and boxing goals with the support of our expert Relentless trainers.

    Membership Benefits

    8 classes per month (classes only)

    Open gym not included (bookable at a discounted rate of £8 per session)

    10% off Relentless merchandise

    10% off Personal Training (valid for Pay-As-You-Go sessions only)

    Bring a Friend for Free: Email us in advance to arrange their free first class

    Flexible scheduling – book multiple classes per day if credits are available and space allows

    Membership Terms

    No minimum commitment – rolling monthly contract

    30 days’ written notice to cancel via email to info@relentlessboxing.com

    Memberships auto-renew each month

    Children under 14 are not permitted to attend adult classes

    Cancellations: Classes must be cancelled at least 6 hours before the start time, otherwise a £6 fee will apply

    Please Note

    One credit is required per class

    Multiple classes in one day are permitted if credits are available and space allows, at the coach’s discretion

    Choose
  • A group of people inside a gym or training area, with a man in the center smiling and wearing boxing gloves, engaged in a boxing activity with another person who has a coach or trainer's hand near him. The setting has wooden walls and gym equipment.

    Limited 4 Membership - £39/month

    Our Limited 4 Membership is ideal for those training once a week while still benefiting from the coaching, structure, and community at Relentless.

    Membership Benefits

    4 classes per month (classes only)

    Open gym not included (bookable at a discounted rate of £8 per session)

    10% off Relentless merchandise

    Bring a Friend for Free: Email us in advance to arrange their free first class

    Flexible scheduling – train around your routine

    Membership Terms

    No minimum commitment – rolling monthly contract

    30 days’ written notice to cancel via email to info@relentlessboxing.com

    Memberships auto-renew each month

    Children under 14 are not permitted to attend adult classes

    Cancellations: Classes must be cancelled at least 6 hours before the start time, otherwise a £6 fee will apply

    Please Note

    One credit is required per class

    Multiple classes in one day are permitted if credits are available and space allows, at the coach’s discretion

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  • Adults Classes

    £12

    Our Fundamentals classes are designed for all levels, whether you’re stepping into the gym for the first time or already have some boxing experience. In these 1-hour sessions, we cover every key aspect of boxing — from stance, footwork, and defense to punches, combinations, and ring movement.

    Each class blends technical learning with conditioning, helping you sharpen your skills while building strength, speed, and endurance. Our expert coaches break everything down step by step, making it accessible for beginners and still challenging for more experienced boxers.

    If you want to learn the art of boxing while getting fitter, faster, and more confident, this is the perfect place to start.

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TODDLERS, JUNIORS AND YOUTH PRICES

  • Boxing coach instructs three young female fighters in a boxing gym with a brick wall and large windows.

    NextGen Intro - £89

    NextGen Intro

    An introduction to boxing for juniors & youth (ages 6–15)

    The NextGen Intro is the perfect way for young athletes to get started in boxing. Designed for beginners, this programme helps build confidence, coordination, and fitness while learning the fundamentals in a fun, safe, and supportive environment.

    What’s included:

    Unlimited NextGen classes for one month

    1 pair of boxing gloves (colour subject to availability)

    1 pair of boxing wraps (colour subject to availability)

    Please note:

    Available to new customers only

    Classes must be completed within one month of activation

    Give your child a strong start — join NextGen today.

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  • NextGen Membership

    NextGen Membership – £59/month

    Unlock access to NextGen classes up 12 times a month (3 a week) designed to help you grow, gain confidence, and perform at your best — with guidance from our experienced Relentless trainers.

    Membership Benefits

    Unlimited access to all NextGen classes

    10% off Relentless merchandise

    10% off Personal Training (valid for Pay-As-You-Go sessions only)

    Refer a Friend: Get 10% off your membership when they sign up

    Bring a Friend for Free: Their first class is on us

    Flexible scheduling – book multiple classes per week if space is available

    Membership Terms

    No minimum commitment – rolling monthly contract

    30 days’ written notice required to cancel via email to info@relentlessboxing.com

    Memberships auto-renew each month

    Valid for all NextGen classes only

    Cancellations: Classes must be cancelled at least 6 hours before the start time, otherwise a £6 fee will apply or credit will be lost.

    Join today and start your journey to becoming your best self with Relentless NextGen.

    Click Here
  • A young boy wearing boxing gloves and a white sports shirt practicing boxing in a boxing gym.

    NextGen Youth (Ages 8–15)

    £10 (single class)

    Designed for older kids and teens, our NextGen Youth classes build on boxing fundamentals with more structure and challenge. Participants will develop technique, strength, and conditioning while training in a supportive atmosphere that promotes focus, resilience, and self-confidence. (45 minutes)

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  • NextGen Junior (Ages 6–10)

    £10 (single class)

    Our NextGen Junior classes introduce young boxers to the fundamentals in a fun, safe, and engaging environment. Through games, drills, and beginner techniques, kids develop coordination, fitness, and confidence while learning respect and discipline. (45 minutes)

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  • Young girl wearing pink boxing gloves and a black Elentles Boxing t-shirt standing inside a boxing ring, facing away, with an instructor or coach in the background.

    Mini Relentless (Ages 3–5yo)

    £12.50

    £40 ( 4 classes valid for 6 weeks)


    A playful introduction to movement and boxing basics for our youngest champions. Mini Relentless sessions focus on coordination, balance, and fun activities to keep little ones engaged. Each child must be accompanied by an adult throughout the session. (30 minutes)

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A man wearing a gray t-shirt is practicing boxing with a black and orange punching bag in a gym with wooden walls and equipment.
Two men engaged in boxing training inside a gym, wearing protective headgear, gloves, and athletic clothing, with boxing ring ropes visible in the background.
Two boys working out on rowing machines in a gym, one on an elliptical trainer and the other using a rowing machine, with gym equipment in the background.
A modern gym with three air bikes, weight rack, kettlebells, medicine balls, and mirrors along the wall.
A metal workout rack holding weight plates, resistance bands, medicine balls, and kettlebells against a gray brick wall.
A woman standing in front of rowing machines outdoors, with farm silos and cloudy sky in the background.
A man and a young boy sparring in a boxing gym. The man is wearing a sleeveless athletic shirt and shorts, and the boy is wearing a green T-shirt and red shorts. Both are wearing boxing gloves. The boy is throwing a punch while the man is smiling and
A close-up of a black dial weight plate, labeled with blue text indicating 20 kg, for use in weightlifting, mounted on a wall with metal support bracket.
Shelf with multiple kettlebells with colored rings.
A gym rack with weight plates, medicine balls, resistance bands, kettlebells, and a workout bench against a dark brick wall.
A vertical rack holding four adjustable weight plates, each labeled 20KG and 10KG, with metal frame and black background.
Man in red shirt and black shorts practicing boxing in a gym, with another person partially visible in the background. The man is wearing boxing gloves, and he is in an aggressive punching stance.
Two men training indoors, one wearing boxing gloves and the other sparring. The man with boxing gloves is dressed in a gray shirt and shorts, while the other wears a blue shirt. They are engaged in a boxing or martial arts practice, with intense focu