Simple, Effective Endurance Coaching Built Around You
Work with an experienced coach who strips away the noise and builds purposeful training around your goals, experience and real life — from your first event through to Ironman finishes, ultra marathons, podiums and World Championship qualification.
Over a decade of coaching experience supporting hundreds of athletes across triathlon, cycling, running and ultra-endurance — from complete beginners to performance-focused competitors.
What's Included
Good coaching isn't about making training more complicated. It's about giving you the confidence that you're doing the right training at the right time, so you can focus on the work rather than constantly questioning it.
Know Exactly What To Do
Every session has a purpose. No random workouts or unnecessary complexity—just a clear plan designed around your goals.
Training That Fits Real Life
Work, family, holidays and illness all happen. Your training adapts so you can stay consistent instead of starting over.
Expert Guidance
No second-guessing. You'll always know when to push, when to recover and when your training needs adjusting.
Personal Support
Regular communication, feedback and encouragement from an experienced coach who genuinely cares about your progress.
How Online Coaching Works
The process is straightforward. We learn where you are now, build the right training around your life and keep the plan focused on what will move you towards your goals.
Tell Us About You
We begin with a free consultation to discuss your experience, current training, availability and goals. This gives us the context needed to identify your priorities and recommend the right level of coaching support.
Receive Your Personalised Training
Your training is delivered through TrainingPeaks and built around your fitness, event demands and real-life schedule. Every session has a purpose, with clear guidance so you know exactly what to do and why it matters.
Train, Progress and Adapt
Performance Coaching athletes receive regular feedback, communication and ongoing adjustments as training and life change. Guided Plan athletes receive a new personalised four-week programme each month, with a walkthrough explaining the next block.
You focus on completing the training. We make sure the plan remains clear, realistic and focused on the work that matters.
Choose the Coaching That Fits You
Whether you want complete coaching support or a clear, personalised training plan, both options are built around purposeful training, straightforward guidance and consistent progress.
Performance Coaching
Personal coaching, regular feedback and complete oversight
per month
For athletes who want an experienced coach making the decisions alongside them. Your training evolves with your fitness, feedback and everyday life, so you can focus on completing the work rather than constantly wondering what to do next.
- Initial consultation and detailed goal setting
- Fully personalised TrainingPeaks programme
- Weekly coach contact and ongoing plan adjustments
- Training adapted around your progress, work, family and life commitments
- Regular session review and performance feedback
- Direct coach access by email and WhatsApp when you need support
- Regular video feedback, analysis and plan explanations
- Race planning, pacing and strategy guidance
- TrainingPeaks Premium included
- Private athlete WhatsApp group
- Team Strava club and Enduraprep kit access
Minimum three-month commitment.
Ideal for athletes who want regular communication, complete coaching input and the confidence that every session has a purpose.
Guided Plan
A personalised training plan with the freedom to manage yourself
per month
For self-motivated athletes who are comfortable managing their training day to day but want the confidence of following a professionally designed plan that is updated every month.
- Initial consultation and onboarding
- Personalised four-week TrainingPeaks programme
- A new training block added every month
- Monthly screen-recorded walkthrough explaining your plan
- Monthly coaching insights video
- TrainingPeaks Premium included
- Private Facebook group access
- Team Strava club and Enduraprep kit access
Designed for independent athletes:
- You manage your own day-to-day training
- No individual session reviews or workout feedback
- No mid-cycle plan changes
- No direct coach messaging
Minimum three-month commitment.
Upgrade to Performance Coaching at any time if you would like regular feedback, plan adjustments and direct coach support.
Is This Coaching Right for You?
Enduraprep is for athletes who want to stop second-guessing their training. Whether you're preparing for your first event or chasing a personal best, you'll receive clear, purposeful coaching built around your goals and your life.
You Want to Perform at Your Best
You're preparing for an Ironman, marathon, ultra marathon, sportive, championship qualification or simply your strongest season yet. You want every session to have a purpose and every training block to move you closer to your goal.
You Want Clarity, Not Confusion
Whether you're new to structured training or returning after years of trying different approaches, you want straightforward coaching that removes the guesswork and gives you confidence that you're doing the right training at the right time.
You Have a Life Outside Training
Work, family and other commitments matter. Your training should fit around real life, not the other way around. Every plan is adapted to your schedule so you can stay consistent without feeling overwhelmed.
Explore Coaching for Your Discipline
Enduraprep provides personalised online coaching for triathletes, cyclists and runners. Explore your discipline to learn more about how coaching is tailored to the specific demands of your sport.
Triathlon Coaching
Personalised swim, bike and run coaching for athletes from their first triathlon through to Ironman and performance-focused racing.
Explore Triathlon Coaching →Cycling Coaching
Structured coaching for road cyclists, endurance riders and mountain bike racers looking to improve fitness and performance.
Explore Cycling Coaching →Running Coaching
Personalised coaching for road, marathon, trail and ultra runners, from first-time racers to experienced athletes chasing PBs.
Explore Running Coaching →Hear From Athletes Working With Enduraprep
Real feedback from athletes coached by Lawrence through Enduraprep — covering structure, communication, flexibility and the results they achieved through personalised coaching.



So insightful and bursting at the seams with knowledge and expertise.
Was made to feel so comfortable and at ease. Explained to me exactly what would be done and how my data would be recorded. Explained my full test results to me at the end of the session too.
Great guy with a clear passion for what he does!
Thank you so much!




After signing up for Ironman Wales, I quickly realised I had no idea how to train for such an event. A quick call with Lawrence helped ease my nerves (especially concerning the bike section) as he designed an easy-to-follow training plan.
Lawrence went above and beyond, providing weekly updates and offering little tips and tricks to help with future training sessions.
After just four months with Lawrence, I conquered the dragon and became an Ironman.



I entered this race with no triathlon experience and not really any clue what I was doing but after a year of coaching I have managed to do 2 other triathlons and actually get down the finish line of an Ironman🏴
Cronk really took into consideration my currently capabilities and designed the training to fit me and my schedule. The monthly videos and assistance really helped to ease my worries and answer any ridiculous questions I have had for each triathlon I’ve done now (especially Ironman😅)
Thankyou so much for all your help. I can’t wait to do another one now!!


His advice and plans are always insightful, precise and tailored towards whatever event I am building up to. He is also very good at adjusting my plan to fit around my bust work schedule, and adjusting sessions with short notice if something changes in my week.
Highly recommend.

He was really nice, very welcoming, chatty and made me feel at ease straight away, super informative with all the information he gave me.
will definitely be going back in a few months , really happy with the service!
Also on the actual testing place is on beautiful grounds, so just a added bonus!
Thank you, Craig!

Very knowledgeable



Thankyou again
Lloyd



Highly recommend



Very easy to approach and always happy to help.
Definitely recommend him and Enduraprep.





Results & Experience
Proven performance across disciplines — from first finish lines to world championship qualification.
Lawrence Cronk is an endurance coach with over a decade of experience helping athletes unlock their potential. Now based in Slovenia, Lawrence coaches athletes across the UK, Europe, USA, Australia and the Middle East — combining real-world racing experience with science-led training principles.
Athlete Achievements
- 100+ Ironman finishes
- Ironman World Championship qualification
- Age Group World Championship qualification (multiple disciplines)
- Marathon des Sables
- Badwater 135 & Moab 240
- Dragon’s Back & multi-day ultras
- MTB & Gravel incl. Leadville 100 MTB
- Gran Fondo World Championships
- Road marathons incl. Good For Age qualifiers
- Open water incl. channel swims
Personal Experience
- Great Britain Age-Group representation (European & World Long-Distance Triathlon Championships)
- Multiple Ironman finishes
- Triathlon, Cycling & Running podium finishes
- ÖtillÖ SwimRun World Championships qualification
- Ultra-marathon finishes incl. 5-day Iceland crossing
- 3-man non-stop relay ride across the USA
- 26-hour non-stop gravel ride across Wales
- Haute Route Dolomites stage race
- Leadville 100 MTB — sub-9 hours
Qualifications
- IRONMAN Certified Coach
- TrainingPeaks Accredited Coach
- British Cycling Level 3 Guide
- Qualified Swimming Teacher
- Certified Personal Trainer
Online Coaching – Frequently Asked Questions
What types of athletes do you coach?
I don’t have any events planned, I just want to get fitter and faster. Is that OK?
I’m new to structured training. Can I still do this?
I had a coach before and it didn’t work out. What will be different with Enduraprep?
How does online coaching actually work?
With Performance Coaching, I review your training regularly, provide feedback, and adjust your programme week-to-week. With the Guided Plan, you receive a personalised monthly plan, a video walkthrough and general coaching insights, but no individual workout feedback.
How often will I hear from my coach?
With the Guided Plan, we check in when your plan is updated each month. You also receive a monthly video walkthrough of your upcoming block and a coaching insights video, but not ongoing back-and-forth about completed sessions.
Do I need expensive equipment to benefit from coaching?
What if I travel often or my schedule changes?
For the Guided Plan, you send through your availability each month and we build your new block around that schedule.
Can my plan include strength training or nutrition guidance?
What if I get injured or sick?
Can I still train with my club or friends?
What is the minimum commitment?
Can I book a consultation before committing?
Ready to Train With Structure & Confidence?
Book a free consultation call and we’ll discuss your goals, training history and availability. You’ll leave with clarity on whether Performance Coaching or the Guided Plan is the right fit — no pressure, no obligation.
Not Ready for Coaching Yet?
There are several ways to work with Enduraprep. Start with structure, testing or education — and step into coaching when the time is right.
Training Plan Store
Structured, event-specific TrainingPeaks plans for triathlon, cycling, running and ultra events.
Browse PlansPerformance Testing
VO₂ max, threshold and RMR testing to remove guesswork and set accurate training zones.
Explore TestingPerformance Retreats
Structured endurance retreats in Slovenia — combining training, recovery, expert support and world-class terrain.
View RetreatsEnduraprep Nutrition
Practical fuelling strategies and simple systems to support recovery, performance and body composition.
Learn MoreUnsure What You Need?
Tell me your goals and availability and I’ll recommend the right starting point — whether that’s a plan, testing or full coaching.
Talk to a Coach