New to Relentless? Get your first 30 days for just £30 and discover a different way to train.

This isn’t just a boxing gym. During your 30 days, you can train across our adult classes, including:

Boxing Fundamentals • Strength • Engine • WORK • HYROX-style training

You don’t need to be fit before you start and you don’t need any boxing experience. Our coaches will help you train at the right level and build from there.

Box once or twice a week and mix it with Strength and conditioning, Engine sessions or HYROX-style training — build a routine that works for you.

30 days. £30. One facility. Plenty of ways to train.

Available to new adult customers at Relentless Boxing & Performance Centre, Dunmow.

£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!

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 5:00am 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.

• 60 days cancellation notice in writing. renews automatically every month

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

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

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

Memberships auto-renew every 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.

Our Limited 8 Membership gives you access to 8 adult classes every 4 weeks, helping you train consistently while working towards your fitness and boxing goals with the support of our expert Relentless trainers.

Membership Benefits

8 classes every 4 weeks (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

60 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

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 every 4 weeks  (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

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

Memberships auto-renew each 28 days

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

Train together. Get stronger together. Save together.

At Relentless Dunmow, we believe fitness is better when you do it together! Our Couples and Family Memberships make it easier and more affordable for households to stay active, build strength and develop healthier lifestyles together.

Enjoy unlimited access to our boxing classes, fitness sessions and open gym, with options to suit your household.

Choose your membership:

• Couples Membership – £139 per month: For 2 people.

• Family Membership – £179 per month: For 3 people.

• Family Membership – £219 per month: For 4 people.

Every registered member enjoys unlimited classes and open gym access, giving everyone the freedom to work towards their individual goals while being part of the Relentless community.

Whether you're learning to box, building strength, improving fitness or simply making healthier choices, we're here to help you get stronger together.

Membership Conditions

• All memberships require a minimum 12-month commitment, with monthly payments.

• All registered members must live at the same residential address. Relentless may request proof of address where necessary.

• Class access is subject to age restrictions and the suitability of each session.

• Membership cancellation and renewal are subject to the terms of the membership agreement.

One household. One community. A stronger future.

Join Relentless Dunmow and make fitness part of your family's lifestyle!

At Relentless Dunmow, we want to make fitness accessible to everyone. Blue Badge holders are eligible for a 10% discount on our current standard adult individual memberships.

Please note that this discount does not apply to junior or youth memberships, family memberships, or members already benefiting from an existing discounted or legacy membership tariff. The discount cannot be combined with other offers or promotions.

For further information or to check your eligibility, please speak to a member of our team.

£12.50

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.

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.

Unlock access to NextGen and YoungStars classes up 12 times every 4 weeks (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

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

Membership Terms

No minimum commitment – rolling monthly contract

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

Memberships auto-renew every 4 weeks

Valid for all NextGen classes and YoungStars 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.

£10 (single class)

£90 (10 classes valid for 10 weeks)

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)

£10 (single class)

£90 (10 classes valid for 10 weeks)

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)

£12.50

£40 ( 4 classes valid for 4 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)