Mark's coaching got me across the finish line of my first Half Ironman and gave me a solid foundation in both swimming and overall triathlon strategy. His structured weekly workouts through TrainingPeaks kept me on track and in race shape, and his practical nutrition tips helped me fuel smarter and recover better. His deep knowledge and consistent support made all the difference.

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1:1 coaching that builds broad capacity across strength, endurance, and life.
The problem we solve
LOCKED ยท copy deck, Home section 3You're doing the work.
You're still stuck.
Motivated. Training hard. Eating right. Everything is peachy and you're conquering life.
Then a busy week hits and you fall off. Hard. One missed session becomes two. A cheat meal becomes a weekend off the rails. And almost overnight you're behind where you started: a pants size wider, a month's gym membership in the toilet.
Sound familiar?
It isn't discipline you're missing. It's a system. 10X turns the work you're already doing into the results your effort deserves: progress you can track, week after week, with a coach who holds the line when your motivation runs out.
A complete lifestyle solution
One coached system
Tailored training plan
One plan designed to improve both strength and endurance, built around your goals, your schedule and your lifestyle.
1:1 nutrition support
Fuelling plans and protocols that fit your routine and support your training, with full access to recipes, shopping lists, supplement guides and event fuelling plans.
Lifestyle and habit coaching
Protocols for sleep, stress and recovery, and the habits that hold them, coached and tracked alongside your training.
What the
system covers
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A complete and comprehensive assessment and onboarding protocol before your first block, to establish the foundations to build upon. Your performance is measured, not guessed. Re-assessment happens regularly to track your progress.
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Your training plan delivered via TrainingPeaks, a best-in-class platform that syncs your session directly to your watch, adjusted weekly according to your needs and goals.
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Feedback and analysis on your plan's adherence, daily check-ins, and same-day access to your coach. Block-end evaluation calls ensure that you and your coach are fully aligned on the level of support you need.
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Your training, recovery and nutrition data is tracked and reviewed continuously. Weekly reviews and block reports show you exactly where you are progressing and what needs to change, so every decision is informed by evidence rather than guesswork.
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Personalised macro targets and nutrition guidance built around your training and your goals, with the resources to make it easy to follow. Alongside it, structured lifestyle and habit coaching that builds the routines your results depend on, reviewed with your coach as you progress.
Athlete story
She couldn't run for 15 minutes.
When Teagan started with 10X, 15 minutes of running was the limit, and her training was effort that didn't add up to much. With a system built around her week, that changed. She built to running 4 times a week and got stronger and fitter than she'd ever been.
Competed at her first Turf Games
Then 3 weeks later, her first half marathon
"I never thought I'd achieve it."
Strong and enduring, weeks apart. That's the dual system working.
Teagan Etherington, 10X client.
What's being said about our coaching
Mark was my coach for my first ever ultra, and honestly, there's not a chance I would have been able to run or even dream of running the distances I was covering by the end of our training block without his guidance. Coming from a sprint-based sporting background and recovering from recent surgery, long distance running was barely on my radar. Before I knew it, I was consistently banking kilometres every week and building confidence with every session. Mark made the transition incredibly smooth. The training quickly became a natural part of my routine because every week of the program made sense. He always explained the rationale behind the sessions and the bigger picture of what we were working towards, which made it easy to trust the process and stay motivated. Not only did I complete my first ultra, but I felt so prepared, confident, and genuinely enjoyed the journey. I couldn't recommend Mark highly enough to anyone looking to push or start their journey.
I had the privilege of working with Coach Mark Timlin while training for Ironman 70.3 Oman, as well as several sprint and full-distance triathlons across the UAE and the Gulf region. Mark's coaching style is both professional and highly personalized. Using TrainingPeaks, he created a dynamic training plan that adapted to my evolving fitness levels and goals. With his expert guidance, I achieved podium finishes at both age group and overall levels. One of the standout aspects of Mark's approach was the inclusion of a bespoke strength training program that complemented my endurance training, this significantly improved my performance, helped prevent injuries, and built a solid foundation for long-term progress.
Mark was approachable and highly supportive from the outset. He took the time to understand my goals and made achievable and personal recommendations that helped me to progress. Mark has a positive energy and an ability to make fitness fun, which makes a massive difference. I highly recommend working with him!
I have worked with coach Mark and he was a personal trainer for almost a year. With his knowledge and wide experience, he has taken my fitness journey to another level and helped me during my transformation. It was a pleasure working with him!
I had the pleasure of being coached by Mark when I regularly attended his endurance classes. Mark's sessions were consistently challenging in the best way. His clear, practical coaching points were always very helpful and his upbeat personality and great sense of humour kept the energy high (even during burpees, no one likes burpees!). Training with Mark was always tough, rewarding and genuinely fun.

Getting started
Three steps from your first application to a coach in your corner.
1Apply.
A few honest questions about where you are and where you want to be.
2Get on a call.
We talk through your goals and how we get you there.
3Get after it.
A plan built for you, and a coach in your corner from day one.
Let's work together to build a better you.