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Triathlon · Half Ironman · Ironman

Triathlon and Ironman Training Support in London

Strength and conditioning for triathlon training, from your first sprint distance race to a Half Ironman or a full Ironman, coached 1 to 1 at our Finchley Road studio, NW3, around your swim, bike and run.

5.0218 Google reviewsFree 15 minute callNo sales pressure
500+
Body transformations
5.0
218 Google reviews
InBody
770 medical grade scans
1:1
Never shared sessions
7 days
Open 6am to 10pm
BTX coach spotting a client through a barbell back squat at the Finchley Road studio

Triathlon training

Where the gym fits in a triathlon week

With 3 sports to train, strength work is usually the first session a triathlete drops, and it is the one that holds the rest together. Your shoulders take every length in the pool, your hips and lower back hold your position for hours on the bike, and your legs have to run well when they are already tired.

We plan 1 to 1 sessions around your swim, bike and run, keep them short of the fatigue that would spoil your key sessions, and adjust the load as your race gets closer.

Endurance sports

Triathlon Training at BTX

01

Strength for 3 sports

Pulling and shoulder work for the swim, hip and trunk strength for long hours on the bike, and single leg work for the run off the bike, chosen from your movement assessment rather than a generic gym plan.

02

Half Ironman and Ironman builds

Longer events mean more training hours and more chances to break down. Through a Half Ironman or Ironman build, your coach keeps the strength work going in small, regular doses, then lightens it for your taper.

03

Fuelling long training days

Nutrition coaching for big training weeks: enough food to recover, protein to hold on to muscle, and a race day fuelling routine you have practised on long sessions. Your InBody 770 scan every 4 weeks shows what your body composition is doing.

04

Training through injury

If a running, shoulder or back injury is getting in the way, Benjamin, our rehabilitation coach, rebuilds strength progressively and works alongside your physio or GP.

Szymon Binkowski, BTX Head Coach, arms crossed in the Finchley Road studio

Your coach

A coach who has raced it

Szymon Binkowski, our Head Coach, has raced triathlons and completed a Half Ironman. That is his own sport rather than his coaching specialism: in the studio he is a Level 3 personal trainer with over 10 years of experience in strength training, hypertrophy and weight loss.

What his racing adds is a coach who knows what a big endurance training week feels like, and plans your strength work so it helps your swimming, cycling and running instead of competing with them. Mariyan Voykov, our Manager and Senior Coach, also coaches cycling and marathon athletes.

Why BTX?

A gym rents you space.
We deliver a result.

Lasting change needs a programme, not drop in workouts. Everything at BTX is built around your data, your schedule and a coach who is with you for every rep.

A commercial gym
  • A busy gym floor shared with other members
  • No way of knowing the standard of the personal trainer you get
  • You rent space and equipment
  • A generic plan, or no plan at all
  • Progress judged by the bathroom scale
  • No blood work, no clinical oversight
  • No gut microbiome testing
  • Generic supplements sold at the counter
  • Restrictive diets you can't stick to
  • Motivation fades by week 3
The BTX method

We work with you, not against you.

  • A small, private studio: no other members and no distractions
  • Hand selected coaches, each trained personally by James Cooper in the BTX system
  • A dedicated personal trainer with you for every 60 minute session
  • Periodised strength and conditioning programming built from your scan and movement assessment
  • InBody 770 scans every 4 weeks: body fat, muscle and metabolic rate measured
  • Personalised blood work with Dr Matt Milner (A&E consultant)
  • Gut microbiome testing, the foundation most personal trainers ignore
  • Nutrition and supplementation protocols designed by James Cooper, BSc Nutrition, King's College London
  • Nutrition built around your lifestyle, food and schedule, never restrictive
  • Coach led accountability, session after session

How it works

From first call to
first result

01

Free strategy call

15 minutes about your race, your training hours and the sessions you never miss.

02

Scan and assessment

An InBody 770 scan and a movement assessment before anything is programmed.

03

Sessions around your week

1 to 1 strength and conditioning placed between your swim, bike and run, with the load set by your race calendar and a rescan every 4 weeks.

Client results

Real people.
Measured results.

★★★★★
“I am halfway through my 12 week program and have already dropped 5% in body fat and added muscle.”
Moritz12 week programme · Trustpilot
★★★★★
“I have been training with Justin for over a year and am blown away with the result. Justin and the team really know their science.”
Jean-PhilippeClient for 1+ year · Trustpilot
★★★★★
“The team at BTX supported me in getting my fitness and strength back. Justin is incredibly focused and committed.”
ShivaStrength and fitness · Trustpilot

Free strategy call

Book your
strategy call

  • Pick a time that suits you
  • A coach calls you, with no sales pitch
  • Instant confirmation and reminder
Can't see a time that works?Call 020 8138 9413WhatsApp us

FAQ

Questions,
answered.

Still unsure if BTX is right for you? Ask us directly. We reply fast on WhatsApp.

This service covers the strength, conditioning, nutrition and body composition side of triathlon training. Bring your swim, bike and run plan, or your triathlon coach’s plan, to the free strategy call, and we will build the gym work around it and tell you plainly what else we can help with.

A Half Ironman is a 1.9km swim, 90km bike and 21.1km run. A full Ironman doubles each: 3.8km, 180km and a 42.2km marathon. The full distance asks for many more training hours, so strength sessions get shorter and more targeted, and fuelling and recovery matter even more.

It depends on your training hours, your race date and how your body copes with the volume. We agree the number on your strategy call and adjust it through the season, so strength work supports your swim, bike and run rather than taking time from them.

Yes. A first sprint or Olympic distance triathlon is a good time to build strength, because the habits you set now carry through to longer races. We start from your movement assessment and your current training, whatever your level.

Yes. BTX Online coaching through our Kaizen Warrior programme gives you programming, nutrition guidance and coach check ins wherever you train, which suits triathletes who travel for races and training camps.

Training at BTX is priced as a membership, not per session, because lasting results need a programme rather than drop in workouts. We match the plan to your goals on your free strategy call. Most clients train 2 to 4 sessions a week.

Most clients see measurable changes in body composition within 4 to 6 weeks of following their programme consistently. We check it with an InBody 770 rescan every 4 weeks.

No. We don’t prescribe restrictive meal plans. Your nutrition is built around your lifestyle, food preferences and schedule, so it lasts beyond the 12 weeks.

Yes. We work with clients managing type 2 diabetes, hypothyroidism, osteoporosis, high blood pressure, cardiac conditions and recovery after surgery.

Every clinical case at BTX is reviewed with Dr Matt Milner, A&E consultant and our in-house physician. He oversees blood work, interprets results in the context of your training, and liaises directly with your GP or specialist where appropriate.

This clinical oversight is one of the biggest reasons clients choose BTX over a conventional personal trainer. Most PT studios cannot offer this.

Free strategy call

Get stronger for race day

Pick a time for your free 15 minute strategy call and a BTX coach will ring you then to talk through your race calendar and training week.

  • Free, with no obligation
  • Speak to a coach, not a salesperson
  • Limited 1 to 1 slots each month
Book your strategy call

Prefer to talk now? 020 8138 9413 · WhatsApp