LewisTannerFitness
High-level coaching for the everyday athlete.
Helping busy people become stronger, fitter and more confident through coaching that's built around real life
Life doesn't slow down just because you've set yourself a fitness goal.
Work, family and everyday responsibilities all matter. That's why every programme is built around your experience, goals and the reality of your life—not the other way around.
As your fitness improves, or life inevitably changes, your coaching evolves with you.
No generic templates. No unnecessary volume. Just intelligent coaching that fits your life and helps you perform at your best.
Led by Lewis and Jo, we've coached more than 200 athletes; from complete beginners to World Championship qualifiers. Every athlete receives the same level of care, communication and attention to detail.
Because great coaching isn't about where you start. It's about helping you become the strongest version of yourself.
How We Coach
This is coaching, not generic programming.
Purposeful Programming
Every session has a reason.
Your programme follows a structured progression, developing the qualities you need at the right time while balancing training, recovery and performance for long-term progress.
Built Around Real Life
Your coaching should fit around your life—not expect your life to fit around training.
Whether you're balancing shift work, family commitments, military service or a demanding career, your programme adapts with you so consistency never has to become perfection.
Accountability
Progress isn't built through motivation.
It's built through consistency.
Regular feedback, honest communication and ongoing support help keep you moving forward, adapting whenever needed and celebrating the wins along the way.
Coaching That Makes Sense
We believe understanding your training is just as important as completing it.
We'll always explain the "why" behind your programme, helping you build confidence in the process and giving you the knowledge to train smarter for years to come.
Nutrition Support
Training is only one piece of the puzzle.
For those who want to maximise their progress, personalised nutritional guidance is available to support your training, recovery and long-term goals—without unnecessary restriction or unsustainable approaches.
Who We Work with
We coach people with busy lives and ambitious goals.
People who work full-time.
Parents finding time around family life.
Military personnel balancing demanding careers.
Runners preparing for their next event.
HYROX athletes chasing a new challenge.
People who simply want to become stronger, fitter and healthier.
What brings them together isn't the sport they do.
It's the decision to invest in themselves despite everything else life demands.
If you're willing to trust the process and show up consistently, we'll help you achieve something you'll genuinely be proud of.
No matter where you're starting, our goal is the same: to help you train consistently, enjoy the process and become a fitter, stronger and more capable version of yourself.
Programming Is Just the Beginning
Anyone can send you a training plan.
Real coaching is knowing when that plan needs to change.
Many online coaching services provide what appears to be personalised programming, but behind the scenes it's often a generic plan with a few adjustments.
That's not how we work.
Your programme evolves week by week based on how you're training, how you're recovering and what's happening in your life.
Every decision is made around you.
Your coaching is continually shaped by:
Training performance
Recovery and fatigue
Your goals and upcoming events
Work, family and lifestyle demands
Long-term development
The goal isn't to create the perfect programme.
It's to create the right programme for you.
Apply
Tell us about yourself, your goals and the time you realistically have available to train.
Discovery Call
We'll discuss your goals, answer any questions and make sure we're the right fit before your coaching begins.
Coaching Setup
Your programme is built specifically for you and delivered through our coaching platform with clear guidance and ongoing communication.
Ongoing Coaching
Your coaching never stands still. Every week we'll review your progress, adapt your training where needed and continue building towards your goals together.
This coaching process has been shaped through years of coaching within the RAF and online. One thing has always remained true: no two athletes are the same, so no two coaching journeys should be either.
Why Train With Me & My Team
Our coaching is backed by years of practical experience in both military and competitive sport.
Together we bring:
Over 20 years' experience as RAF Physical Training Instructors
More than 200 athletes coached online
HYROX World Championship qualifications
Multiple podium finishes across HYROX and functional fitness competitions
Exercise Rehabilitation Instructor qualifications
Experience coaching thousands of military personnel across a wide range of abilities and operational roles
But above all else, our greatest achievement is seeing our athletes achieve things they once thought were beyond them.
About Lewis
I'm passionate about helping people realise that having a full-time job, a family or a busy schedule doesn't mean your own goals have to take a back seat.
As a Physical Training Instructor in the Royal Air Force, a HYROX athlete and a dad, I understand first-hand what it's like to balance ambitious goals with the demands of everyday life.
That experience shapes every programme I write.
I believe coaching should do more than improve performance. It should build confidence, create consistency and help people discover what they're capable of.
Over the years I've coached more than 200 athletes towards goals ranging from first races and first pull-ups to marathon personal bests, HYROX World Championship qualification and everything in between.
No matter where you're starting, my goal is always the same:
To help you become stronger, fitter and proud of what you're capable of.
About Jo
Jo Belgrau is a Physical Training Instructor in the Royal Air Force with over five years of experience coaching high-performance fitness in demanding environments. Before this, she served as an RAF Police Dog Handler, building the discipline and resilience that underpin her coaching today.
She has completed multiple arduous military courses, including becoming the second ever female from the RAF to pass the Military Close Protection Course. Alongside her service career, she's competed in CrossFit, functional fitness, and HYROX, and have represented the RAF in rugby league and bobsleigh.
Jo is passionate about intelligent training, nutrition and long-term health where people can build strong, capable bodies that perform under pressure and last.
Testimonials
“I've been training with Lewis for over 2 years now and I have never been so consistent and motivated since I started the gym 10 years ago! He tailors everything to me and my goals, is flexible when my goals change and actually makes it feel like he is personally invested in my journey! Even the smallest achievements are celebrated. He's always just a text away if I have any questions, and I couldn't recommend him more! I'm the healthiest and happiest I've ever been and my training has so much to do with it!”
— Emily
“I've thoroughly enjoyed working with Lewis! He is easy to reach, asks and listens to feedback. The sessions programmed are always fun, I'm happy with the results I see week after week, and I feel that they are tailored specifically to my goals.”
— Nicole
“Lewis has coached me for almost 2 years and has completely changed what I believe I'm capable of. From Hyrox to marathons to ultras — 601 days later he's still checking in daily to make sure I'm on track. He genuinely cares holds you accountable and gets results. Worth his weight in gold. Thank you, Lewis”
— Olivia
“I've worked with Lewis on and off for over a year and he's been brilliant at creating clear, effective structures to get me race-day ready for HYROX. After returning from travelling, he got me perfectly primed for my Singles HYROX race in Birmingham. His plans are detailed, varied (gym + running), and he always gives great feedback while making himself available for support and goal setting. I'd highly recommend Lewis to anyone wanting to be properly prepared for HYROX race day!”
— Ben
“I've worked with Lewis for over 2 years to achieve a mix of fitness goals including Hyrox, Half Marathon, and Strength. Lewis has consistently created perfectly tailored fitness plans, taking my injury history, work/life balance, and gym kit into account, while always being on hand for any additional support, guidance, and advice I've needed. If you've got any type of hybrid fitness goal, I'd recommend Lewis as the coach to help you smash them!”
— James
“I've only been coached by Lewis for 5 months so far but the impact he's had has already been massive. He's completely transformed my running and more recently guided me step by step through my first Hyrox, giving me the confidence and structure I needed to push beyond what I thought I could do. His coaching, support, communication and belief in my ability have made a huge difference, and I couldn't have asked for a better PT for this journey. I am excited to see what 2026 brings”
— Soph
“I started working with Lewis in May '25 having had years of calf injuries which had affected my confidence hugely with all elements of exercise including running, which forced me to pull out of countless comps. His exceptional listening skills and keen attention to detail truly set him apart. From our very first conversation, it was clear that he genuinely cares about his clients and their individual goals. Lewis is incredibly empathetic and understanding, always taking the time to address my concerns and tailor our training sessions to my specific needs. As a family man himself he understands the challenges that come with that big responsibility. Thanks to his expertise and support, I was able to get back into great Hyrox shape and back running to a level I hadn't reached in years. The culmination of our hard work was a 1:03 finish at the London Excel Hyrox in the mixed doubles (40-44) — an accomplishment I couldn't have achieved without Lewis's guidance. I highly recommend Lewis to anyone looking to enhance their fitness journey! Great coach and a great human.”
— Rich
“I've been coached by Lewis for three years and he's constantly pushed me further than I thought possible. Even with just six weeks to prepare for a half marathon, his training was structured, progressive, and challenging, and it gave me complete confidence going into race day. I wouldn't be where I am physically or mentally without his coaching.”
— Connor
“I've been with Lewis for a little over 6 months. I have always trained regularly but never felt that there was much structure to what I was doing and kept having set backs and little injuries. As a busy mum of two training had started to become a chore and I felt like I wasn't getting anywhere. Lewis has provided me not only a structured training program but the consistency and confidence in myself again. I've seen huge improvements in my running, competed in multiple Hyrox events gaining PBs, my strength has increased and my body composition has improved so much that I now feel comfortable wearing things again that I haven't for years. Thank you for making me believe I am so much more capable than I thought!”
— Robyn