Boxing Fitness in Stittsville —
Lose the Stress. Feel Strong Again.
Private, non-contact BoxingFit and 1-on-1 personal training with Coach Brett Irwin — built around three things busy adults actually want: stress relief, real fat loss, and feeling strong and confident in your own body. No sparring, no crowds, no ego. Serving Stittsville, Kanata, and Richmond.
Trainer (CPT)
Algonquin College
Active Competitor
Experience
Meet Coach Brett Irwin — Your Stittsville Boxing Coach
NASM-CPT | Fitness & Health Promotion, Algonquin College (Honours)
Brett's path into coaching started with combat sports. An active Muay Thai and Brazilian Jiu-Jitsu competitor with a background in mixed martial arts, Brett spent years on the mats and in the ring before turning his focus to helping everyday people use boxing and strength training to feel stronger, calmer, and more capable in their daily lives.
After completing the Fitness & Health Promotion program at Algonquin College with honours, Brett earned his NASM Certified Personal Trainer designation and now serves as a Strength, Conditioning & Boxing Coach at BTB — running 1-on-1 personal training and his signature BoxingFit program. He coaches with quiet confidence and a warm, patient demeanour — making him especially effective with clients getting back into the gym after time away.
Private Coaching — 1-on-1 Attention
BoxingFit for Busy Professionals
Built Around How You Actually Want to Feel
BoxingFit isn't about becoming a fighter. It's about losing the stress of your workday, burning serious calories, and walking out of the gym feeling sharper, lighter, and more like yourself — three times a week.
Dump the Stress — Fast
Hitting pads and the heavy bag is one of the most effective ways to flush cortisol and quiet a busy mind. You can't think about your inbox when you're focused on a 4-punch combo — and that mental reset is as valuable as the workout itself.
Real Fat Loss & Conditioning
Boxing is one of the best full-body fat-burning tools ever invented — cardio, core, and coordination in every round. Most clients see real composition changes and fitness gains within the first 6–8 weeks.
Look Strong. Feel Stronger.
Between the conditioning, the S&C work, and the skill-building, BoxingFit builds the kind of lean, functional strength that changes how you look in the mirror — and how you feel in your own body.
No Contact. No Competition. No Ego.
BoxingFit at BTB is strictly non-contact. No sparring, no judgment, no fight-gym culture. Just you, the pads, and a coach who's fully invested in your progress.
What Happens in a BoxingFit Session
Every session is 45 minutes, private or small group, and structured so you get a real workout while learning real skill.
Warm-Up & Mobility
Dynamic warm-up and joint mobility work to get your shoulders, hips, and core ready to move and prevent any tightness after.
Technique Drilling
Brett coaches you through fundamentals — stance, footwork, jab, cross, hook, defense. You leave every session slightly better than you arrived.
Mitt Work & Heavy Bag
The main event. Focused rounds with Brett on the mitts plus heavy bag work — where the stress relief happens and conditioning builds fast.
Conditioning Finisher
A short, high-intensity finisher that leaves you properly worked — and walking out of the gym feeling lighter than when you walked in.
Boxing Fitness That Actually Fits Real Life
Private or Small Group — Never Crowded
Most sessions are 1-on-1 with Brett. Small group options available for couples or 2–3 friends. You're never lost in a class of 30.
Boxing Without the Fight-Gym Culture
BTB is a clean, professional facility — not a sweaty basement. No intimidation, no ego, no "prove yourself" atmosphere. Just quality coaching.
Combat Sports Depth, Everyday Approach
Brett's active Muay Thai and BJJ background means you're learning real technique — but scaled appropriately for stress relief and fitness, not competition.
Built on Strength & Conditioning Fundamentals
BoxingFit is more than boxing — Brett weaves in the S&C principles that make you a better mover long-term, not just a better puncher.
Integrated with Physio & Rehab
If you're coming back from injury or managing a chronic issue, Brett works directly with BTB's physiotherapist and athletic therapist to keep you progressing safely.
Evenings & Flexible Scheduling
Brett offers morning and evening slots that work around demanding schedules. Book a free consult and we'll find time that fits your week.
What BTB Members Say About Coaching at BTB
"Between the Bumpers gym is one of a kind! The respectful, intelligent and caring focus by Sam and Brett on form, aids in exceptional progress in strength, mobility and general fitness. The coaches are super at modifying workouts so that each individual is able to progress at their own rate."
Retired — Dragon Boat Racer
"I feel younger and stronger than I did 10 years ago. I never thought at my age I would be doing pull-ups or lifting heavy weights — but here I am! BTB gives you all the tools for success."
Small Business Owner — SILK Web Solutions
"An amazing gym, knowledgeable coaches that set the tone for a friendly and supportive environment. The on-ramp identified the areas I need to work on and showed me workarounds."
Veteran — Canadian Armed Forces1-on-1 Personal Training in Stittsville
Not interested in boxing? Brett also works with clients 1-on-1 on strength, conditioning, and fitness goals outside the ring — built around where you are right now, whatever stage of life you're in.
Middle-Aged & Older Men
Reclaim strength, energy, and mobility. Training built for men coming back to the gym after years away — with an approach that respects joints, schedules, and long-term results.
Book a Consult
Peri-Menopausal Training
Strength and conditioning designed around the energy, sleep, and recovery realities of peri-menopause. Brett trains women through this phase with a calm, patient approach.
Book a Consult
Post-Menopausal Training
Building and maintaining strength, bone density, and independence through post-menopause — with training that meets your body where it is today.
Book a Consult
Youth Personal Training
Private coaching for young athletes and active teens — proper movement patterns, strength foundations, and confidence-building in a supportive environment.
Book a ConsultBoxing Fitness FAQ — Stittsville
Between The Bumpers offers private, non-contact boxing fitness (BoxingFit) and 1-on-1 personal training in Stittsville, Ontario with Coach Brett Irwin, NASM-CPT — serving busy professionals, women through peri- and post-menopause, and youth athletes from Kanata, Richmond, Barrhaven, Carleton Place, Munster, Ashton, and Ottawa West. BoxingFit combines mitt work, heavy bag conditioning, and strength & conditioning fundamentals in a calm, professional environment — no sparring, no competition, no intimidation. We also offer physiotherapy with Megan Wallenius, MSc and athletic therapy with Taylor Baird, CAT(C). Located at 6511 Fernbank Road, Stittsville, ON.
Book Your Free No-Sweat Consult
Take 20 minutes to sit down with our team, talk through your goals, and see if BoxingFit or personal training with Brett is the right fit. No pressure, no pitch.
Cancellation & Rescheduling Policy
More than 24 hours' notice: Reschedule at no extra cost through Jane App.
Less than 24 hours' notice: Sessions cancelled or missed with less than 24 hours' notice are subject to a cancellation fee.