Bespoke 1-2-1 Coaching

OUR PHILOSOPHY

At T3, we don’t believe in one-size-fits-all training plans, and we don't hide our best support behind expensive premium tiers. Your goals require a fully committed, highly individual approach that integrates seamlessly around your career, family, and life.

For £200 a month, you get our full attention, daily schedule flexibility, and direct 1-2-1 access to a coach who has raced and coached at an elite international level. No compromises, and no hidden upgrades.

Let's Chat

Bespoke 1-2-1 Coaching

£200

Per Month

Get direct, unrestricted access to an elite T3 Coach. A completely customised approach to your training, backed by expert coaches, and a global athlete community.

Let's Chat

✔ Custom TrainingPeaks Plan

✔ Unlimited Coach Contact

✔ Real-Time Plan Adjustments

✔ Race Pacing & Nutrition Strategy

✔ Priority Camp Booking

✔ Monthly Webinars

MORE THAN A TRAINING PLAN

When you join T3, you aren't just buying an online spreadsheet—you become part of the team. Coaching can sometimes feel a bit transactional, and triathlon itself can be a lonely sport, but we genuinely believe athletes progress faster (and enjoy the process a lot more) when they train and race together.

  • The T3 Community: You get instant access to a proper network of like-minded athletes of all abilities. Whether you're swapping training data, debating gear choices on the team chat, or meeting up for a coffee at the start line of a major UK or international race, you’ll always have a team backing you.

  • Priority Camp Booking: Our UK training weekends and annual Mallorca training camps are always in high demand and sell out fast. As a T3 coached athlete, you’ll always get first dibs on slots before we open bookings to the wider public.

HOW TO GET INVOLVED

Your coach builds your custom TrainingPeaks plan from scratch around your physiology, career and family commitments . No generic templates here.

Step 3
Step 4

Start training with daily schedule flexibility. We analyse your data, adjust your blocks in real-time, and give you unlimited support all the way to the finish line.

We’ll pair you with the T3 coach who best matches your specific distance, experience level, and personality to ensure you have the ultimate support system.

Step 1

Schedule a brief intro call with one of our team members. We'll chat about your current fitness, your upcoming races, and see if we’re a good fit to work together.

Step 2
Let's Chat

WHAT OUR ATHLETES SAY

  • “The combination of bespoke training programmes, pro athletes to aspire to, training camps, and a supportive team environment has helped me improve massively — all while genuinely enjoying the process.”

    George Rofe

  • “I feel super lucky to be working with T3. The mashup of 1-2-1 coaching, pro athletes, and team has brought a fun balance to my training and life over the past few years.”

    Josh Allen

  • “The T3 crew are a top bunch of people where there are no egos, just a great culture of looking after each other & training hard whilst having fun.”

    Nick Cranston

  • “I started with Mark as my coach in November and have managed to gain consistency in my training and improve my running so much that I’m now one of the fastest runners in Xterra.”

    Morgan Rhodes

MEET THE TEAM

  • Mark Threlfall

    FOUNDER & COACH

    Mark competed at World and European Championships for Great Britain, claiming silver at the European Duathlon Championships and bronze at Ironman 70.3 UK before becoming one of the founding presenters of the Global Triathlon Network, where he's helped millions of athletes learn the sport. He channels that same depth of knowledge into T3, building coaching programmes that have taken athletes from their first sprint to Ironman finish lines.

  • Harry Palmer

    COACH

    Harry Palmer went from fastest age-grouper overall at Ironman 70.3 Staffordshire and Weymouth to stepping up to the professional ranks, and has since established himself as one of the most exciting British pros in the sport — most recently winning Challenge Family's The Championship in Šamorín. A qualified BTF Level 2 Coach, he brings the lived experience of making that amateur-to-pro leap to every athlete he works with.

  • Will Crudgington

    COACH

    A BTF Level 2 Coach and professional triathlete who has represented Great Britain at elite level across short course, Xterra and Ironman — posting a 7:57 Ironman while working full time as an engineer. Will's background means he understands better than most what it takes to perform at the highest level without triathlon being your only priority.

  • Estée Chiara Larivière

    CUSTOMER SERVICE MANAGER

    Friendly, attentive, and always ready to help, our customer service manager ensures every interaction is a positive one. They keep communication clear, timely, and human.

Frequently Asked Questions

Still have questions? Take a look at the FAQ or reach out anytime.

Let's Chat

  • Everything we offer. You get a completely bespoke, week-by-week training plan delivered via TrainingPeaks that is built entirely around your career and family commitments. It includes unlimited communication (texts, calls, emails) with your coach, dynamic daily schedule changes, custom race-day pacing and nutrition plans, and full access to our T3 Team community and premium brand discounts.

  • No hidden sign-up fees and no locked-in long-term contracts. Our coaching runs on a rolling monthly subscription. We believe the quality of our coaching and the progress you see week-by-week is what will make you want to stay. If your circumstances change, you can pause or cancel at any time.

  • We coach all abilities. While our coaches have raced at the elite and professional levels, our athletes range from total beginners targeting their very first sprint distance to seasoned age-groupers chasing Ironman World Championship slots. If you are committed to turning up and doing the work, we can build a plan for you.

  • As often as you need to. We do not place caps or limits on text messages, emails, or phone calls. Whether you need a quick adjustment before a track session, a deep dive into your power data, or a phone call to talk through race-day logistics, your coach is fully accessible.

  • Because our coaching is completely 1-2-1, there is no "standard" T3 template. A typical week is built entirely from scratch around your specific life schedule, available training hours, and target race distance.

    We can know more once we jump on a call to discuss your needs. However, even then, it will be a constantly iterating process - developing and adapting in real-time as you progress within the sport.

  • While the team lives and breathes multi-sport, we also provide pure 1-2-1 coaching for individual running, cycling, and swimming goals.

Let's map out your goals.

Book a free intro call now to see if we're a good fit.

Let's Chat