Enduraprep | Global Triathlon, Cycling & Running Coaching & Testing Specialists

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Endurance Coaching Backed by Experience — Not Guesswork

Work with a coach who has helped athletes progress from first events through to Ironman finishes, ultra marathons, podiums and World Championship qualification — with structured training built around real life.

Over a decade of coaching experience — supporting hundreds of athletes across triathlon, cycling, running and ultra endurance, from beginners to performance-focused competitors.

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ironman finish line photo

Coaching Options

Choose the way you want to train.

Prices shown in:

Performance Coaching

Full coaching support & accountability

per month

Structured feedback, ongoing communication and complete coaching oversight.

  • Initial consultation & goal setting
  • Fully personalised TrainingPeaks programme
  • Weekly coach contact and plan adjustments based on training data & life schedule
  • Ongoing session review & performance feedback
  • Direct coach contact when you need it (email & WhatsApp)
  • Regular video feedback and analysis
  • Race strategy guidance
  • TrainingPeaks Premium included
  • Private athlete WhatsApp group
  • Strava club & team kit access

Minimum 3-month commitment.
Suitable for athletes at any level who want full coaching input and accountability.

Book a Free Consultation Call

Guided Plan

Personalised structure without ongoing coaching feedback

per month

Monthly personalised programming for self-motivated athletes.

  • Initial consultation & onboarding
  • TrainingPeaks Premium included
  • Personalised 4-week TrainingPeaks plan (updated monthly)
  • Monthly screen-record plan walkthrough
  • Monthly coaching insights video
  • Private Facebook group access
  • Strava club & team kit access

Not included:

  • No session review or workout feedback
  • No mid-cycle plan changes
  • No direct messaging access

Minimum 3-month commitment.
Upgrade to Performance Coaching anytime.

Join Guided Plan

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.

Enduraprep | Triathlon, Cycling & Running Coaching
5.0
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Lauren-Leigh R. profile pictureLauren-Leigh R.
16:17 18 Nov 25
This was my first time having a VO2 Max test done and I already know I’ll return in the future for retesting.

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!
Photo from customer review
Joshua L. profile pictureJoshua L.
05:21 18 Nov 25
Booked in with Craig to test the accuracy of watch , he was so knowledgeable in every way . He showed me my strengths and weaknesses’s , which was really good so I know how to get better for next time .
Lee R. profile pictureLee R.
08:30 28 Oct 25
Booked in for a VO2 Max test with Craig after relying on watch based data for my VO2 max and HR zones. The test was very thorough and Craig talked me through the process. On conclusion of the test Craig talked me through the results, explained my true HR zones and where I needed to focus my efforts in my training to improve. Highly recommend Enduraprep if you want clarity and consistency in your training, I will definitely be making a return visit in the future.
Lewis W. profile pictureLewis W.
22:06 30 Sep 25
I can't thank Coach Cronk enough!
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.
Christopher Y. profile pictureChristopher Y.
11:37 26 Sep 25
After not completing Ironman wales last year, I got in touch with Lawrence to go all in to complete it this year! He helped me achieve my goal, brought my fitness to a level that I’ve never had before! His guidance and knowledge helped me every step of the way, pushed me when needed and encouraged when I was in a low spot. Amazing experience!
Rhys H. profile pictureRhys H.
20:28 24 Sep 25
I had Lawrence from Enduraprep coach me for Ironman Wales. I couldn’t recommend him enough. Lawrence updated my training plan regularly and would amend it quickly when needed to. The training program was excellent and helped me reach my goal of being an Ironman. Lawrence was always reachable whether it be through phone, WhatsApp or email and would always be extremely helpful. He tailored the plan to my needs (bike/work schedule) which I really appreciated. I would recommend Lawrence to anyone looking to reach their goal and I will defiantly use Lawrence for my next big event.
pippa W. profile picturepippa W.
16:43 24 Sep 25
I recently completed Ironman Wales and couldn’t thank Coach Cronk enough for all his support and coaching to just get me to the start line!
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!!
Photo from customer review
james H. profile picturejames H.
12:23 03 Aug 25
I have trained with Lawrence from Enduraprep for a few years now. He has helped me in taking over 45 minutes off my marathon PB, hours off my ironman PB, and numerous other personal best results across other race distances.

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.
Ema P. profile pictureEma P.
09:26 27 Mar 25
Had rmr testing with Craig.
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!
Alun G. profile pictureAlun G.
08:13 23 Jan 25
Top guy, Top service

Very knowledgeable
Rachel G. profile pictureRachel G.
14:55 05 Dec 24
Had a resting metabolic test with Craig and it was a great experience. Craig was very welcoming, made me feel quickly at ease and clearly explained the process. The results are really informative and helpful when thinking about how I manage my calorie intake. Having the information so clearly explained is actually really liberating when planning how to manage life and food intake for both weight loss and maintenance. Thank you Craig.
Chris T. profile pictureChris T.
10:18 25 Sep 24
Had a VO2 max test with Craig. Very good, lots of useful information and advice which I'll use to modify my training for mountaineering. Will get a re-test in six months.
Esmae E. profile pictureEsmae E.
19:09 25 Feb 24
Had a resting metabolic rate test with Craig and was a great experience! Craig is a lovely guy and explained the details of how everything would go. The test itself is very handy and is good to know if you want to be exact with how many calories your body needs daily. Willl be booking in again after finishing my diet!

Thankyou again

Lloyd
William M. profile pictureWilliam M.
07:21 19 Oct 23
Lawrence is an absolutely fantastic coach. Extremely knowledgeable, he designs and regularly reviews my training plan based on performance/plans/fatigue etc. Lawrence checks in regularly to see how training is going and provide feedback and my fitness (and race times!) have come on MASSIVELY since he started coaching me a year ago. Highly recommend.
Tom W. profile pictureTom W.
21:10 25 Sep 23
I worked with Lawrence at Enduraprep this year with the aim of completing Ironman Wales 2023. All the workouts are easy to access and understand on training peaks and email; weekly communication with Lawrence via video was really helpful in analysing the weeks training and talking through the plans for the upcoming weeks. The workouts, although obviously challenging, were pitched at the right level for my fitness and achievable. I was able to complete Ironman Wales in my target time and finished the run strongly which is definitely due to the training programme Lawrence had created for me. I would definitely recommend Lawrence at Enduraprep and I’ll be when I’ve chosen my next race!
Desert F. profile pictureDesert F.
12:39 25 Sep 23
I have been with Endrarep for almost 2 years. They have helped me constantly with my entry into Triathlons. Not only do they have progressive individualised training programmes, they also take the time out to check in and see how the training is going and then review and amend the programme as necessary. I have also helped at length pick suitable bike for my requirements at great length.

Highly recommend
Chris J. profile pictureChris J.
21:29 20 Sep 23
Lawrence has been very open and responsive to my need for information. Always willing to adjust plans around my personal circumstances. Looking forward to a successful 2024 with his guidance.
999GaryG profile picture999GaryG
09:04 19 Sep 23
I've been using Lawrence for the past 2 years and have found him to be very knowledgeable, supportive whilst also demanding. As an ageing triathlete competing at full and middle distance, I have found the training plan achievable and personal without needless junk miles thrown in but also having sufficient zone 4+ workouts to facilitate adaptations. During this time I have podiumed 4 times with two firsts, one runner up and one third.
Mayukhmoy M. profile pictureMayukhmoy M.
11:42 11 Sep 23
Lawrence is an excellent coach and helped me to get back to regular training.
Very easy to approach and always happy to help.
Definitely recommend him and Enduraprep.
David H. profile pictureDavid H.
08:49 11 Sep 23
Lawrence has coached me for 6 years and counting, from triathlon rookie to Ironman veteran. He has learnt how to get the best out of me as an individual and will build challenging but realistic training plans to help me achieve my goals. His methods are plans are continually evolving and I'm loving the new video check ins!
Rachel M. profile pictureRachel M.
15:45 09 Sep 23
Lawrence has been a great coach over the past year or so as I have trained for Ironman Wales via a marathon pb too. He has planned training around life events (my wedding, MSc modules, etc!) and helped me build back up from breaks in training. The weekly video check ins are really useful as you see your own training as a coach would. This means there is context to the comments and feedback. I would recommend Lawrence for triathlon / endurance training.
Stephen A. profile pictureStephen A.
17:20 08 Sep 23
Lawrence helped me achieve my goal of completing Ironman Wales having only completed a 70.3 and a few half marathons a long time ago. I had been using a generic training plan until around 2 months out from race day when I contacted Lawrence with an SOS message needing something a bit more tailored as I had plantar fasciitis and was also struggling with the bike. He was able to devise a plan that catered to my individual needs and was flexible around my changing work commitments. I have no doubt that without Lawrence I would have DNF’d. Instead he got me in shape and around a really challenging course.
Photo from customer review
Emma W. profile pictureEmma W.
07:24 07 Sep 23
Lawrence has been my coach for the last two years. During that time I have completed two marathons and two Ironman events, along with numerous shorter runs and triathlons. Lawrence has helped me to achieve PBs at each event, and get me onto the podium and into the world championships at my last Ironman. Even with a variable shift pattern, holidays and social commitments, Lawrence has provided a robust and flexible training schedule. He is always available for a last minute change to the programme when I have needed it.

Want Similar Structure & Support?

Whether you're preparing for your first endurance event, chasing a personal best or balancing training around work and family life, Enduraprep coaching is built around your goals, experience and schedule.

Personalised Coaching Built Around Real Life Beginners to Elite Athletes
Book a Free Consultation
Speak directly with Coach Cronk about your goals and the best next step for you.

How Online Coaching Works

Structured. Flexible. Personal. Whether you choose Performance Coaching or Guided Plan, your training is built around your goals, availability and real-world schedule.

1. Consultation & Goal Setting

We begin with a free consultation call to understand your background, training history, schedule and goals. From there, we define clear priorities and realistic performance milestones.

2. Personalised Programme

Your training is delivered through TrainingPeaks and tailored specifically to your life. No generic templates — just structured progression aligned with your fitness and event targets.

3. Progress & Adaptation

Performance Coaching clients receive ongoing feedback, adjustments and communication. Guided Plan athletes receive a refreshed personalised plan each month based on updated availability.

How Online Coaching Works

Structured. Flexible. Personal. Whether you choose Performance Coaching or Guided Plan, your training is built around your goals, availability and real-world schedule.

1. Consultation & Goal Setting

We begin with a free consultation call to understand your background, training history, schedule and goals. From there, we define clear priorities and realistic performance milestones.

2. Personalised Programme

Your training is delivered through TrainingPeaks and tailored specifically to your life. No generic templates — just structured progression aligned with your fitness and event targets.

3. Progress & Adaptation

Performance Coaching clients receive ongoing feedback, adjustments and communication. Guided Plan athletes receive a refreshed personalised plan each month based on updated availability.

Merry winning QOM

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

Who I Coach

You train hard. I provide the structure, feedback and clarity to make that work count. Enduraprep athletes don’t need unlimited time or perfect conditions — just consistency, communication and the willingness to improve.

Performance-Driven Athletes

Triathletes, cyclists and runners preparing for Ironman, ultra challenges, marathons, sportives and championship qualification — or simply aiming for their strongest season yet.

Ambitious Beginners

Athletes new to structured training who want clarity instead of guesswork. Intelligent progression builds confidence, resilience and long-term performance from day one.

Busy Professionals

Athletes balancing work, family and training. Plans are built around real-world schedules, travel and life stress — not idealised training weeks.

ironman wales enduraprep

Online Coaching – Frequently Asked Questions

What types of athletes do you coach?
I work with triathletes, cyclists, runners, and endurance athletes of all levels. Whether you’re training for your first 5K, preparing for an IRONMAN, or simply want to improve your health and fitness, your coaching is tailored to your goals and current fitness.
I don’t have any events planned, I just want to get fitter and faster. Is that OK?
Yes — you don’t need a race on the calendar to benefit from structured training. Many athletes work with me to build fitness, lose weight, increase speed, or enjoy a healthier lifestyle. We’ll set meaningful milestones so you still have clear direction and motivation.
I’m new to structured training. Can I still do this?
Absolutely. Structured training is ideal for beginners because it helps you progress safely and consistently. We’ll start from your current fitness level, explain the purpose of each session, and build things progressively so you feel confident rather than overwhelmed.
I had a coach before and it didn’t work out. What will be different with Enduraprep?
Every athlete is different, which is why communication and flexibility are central here. Your plan is built around your life, not the other way round, and it’s adjusted whenever needed. If something isn’t working, we change it quickly — coaching is collaborative, not one-way.
How does online coaching actually work?
Everything runs through TrainingPeaks. You receive your sessions there, complete the training, and upload your data automatically from your watch, bike computer or manually.

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 Performance Coaching, you can expect regular contact, session feedback, and ongoing adjustments, plus WhatsApp access for questions and updates.

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?
No. A GPS watch or smartphone is enough to start. If you have a heart-rate monitor, turbo trainer, smart trainer or power meter, we’ll use them — but they’re not essential. We’ll make the most of whatever tools you have available.
What if I travel often or my schedule changes?
Real life is built into the process. For Performance Coaching, your plan is adjusted around work, family, travel and unexpected changes as they come up.

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?
Yes. Alongside swim, bike and run sessions, your programme can include strength & conditioning, mobility and practical nutrition strategies to support performance, recovery and general health. For more in-depth nutrition support, there is also a separate Enduraprep Nutrition service.
What if I get injured or sick?
We adjust your training around injuries or illness. That might mean reducing load, shifting focus to strength or mobility, or pausing higher-intensity work until you’re ready. The aim is always to protect long-term progress, not chase short-term numbers.
Can I still train with my club or friends?
Yes. Many athletes enjoy group sessions. We can build your plan so key club rides, runs or swims are integrated into your week while still keeping an eye on overall load and progression.
What is the minimum commitment?
Both Performance Coaching and the Guided Plan have a minimum commitment of three months. That’s long enough to see meaningful adaptation and for us to establish routines and structure. After that, coaching continues on a rolling monthly basis.
Can I book a consultation before committing?
Yes. A free, no-obligation consultation call is the best way to explore your goals, understand how coaching works, and decide which option — Performance Coaching or Guided Plan — is the right fit for you.

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.

Book Your Free Consultation Message on WhatsApp
Prefer email? Reach me at coachcronk@enduraprep.com
British Cycling
accredited
IRONMAN