From Wales to Slovenia – Coach Cronk on Endurance Coaching & Mountain Life
From Ironman to mountain biking in the Slovenian Alps — Coach Cronk shares his story, training goals, and life as an endurance coach living in Luče.
How the New IRONMAN Qualification System Works
Age-Adjusted IRONMAN Qualification: How It Works (2026) By Coach Cronk • Enduraprep IRONMAN has introduced a new, performance-based qualification system for the World Championships. Instead of awarding most age-group slots purely by placement within your age group, athletes are now ranked on their age-adjusted (age-graded) finish time relative to a global standard for their age […]
Simple Nutrition for Endurance Athletes
Eat smarter, go faster. Coach Cronk explains how to fuel for endurance training and racing without overcomplicating it — balance your carbs, train your gut, and recover right.
How VO₂max Testing Helps You Train Smarter, Not Harder
VO₂max testing gives you more than just a fitness score — it reveals your aerobic and anaerobic thresholds, helping you train smarter, not harder. Coach Cronk explains how Enduraprep uses test results to fine-tune heart rate zones, improve endurance, and make every session count.
Are You Doing Enough Hard Running?
Many triathletes and endurance runners plateau because their easy and hard runs aren’t different enough. Coach Cronk explains how short, hard intervals — from hill sprints to 30/30s — can lift your top-end speed, improve form, and make every pace feel easier on race day.
How to Swim Faster as an Adult Learner Triathlete
Many adult triathletes never learn to swim fast because they only train at one pace. Coach Cronk shares how mixing short, hard efforts with focused technique work can boost your threshold speed, improve efficiency, and help you swim faster with less effort.
Coach Cronk’s Leadville 100 MTB ‘Big Buckle’ Race Report
Coach Cronk tackles the legendary Leadville 100: 105 miles, 3,500 m of climbing at 3,000 m altitude, and the hunt for the Big Buckle. Read how the training, fuelling, and grit added up to a sub-9-hour finish.
Find Your Sweet Spot: Smarter Training for Road Cyclists, Triathletes & Gravel Racers
Sweet Spot training builds endurance, power, and fatigue resistance efficiently — perfect for triathletes, gravel racers, and busy athletes. Coach Cronk explains how to structure sessions, improve your aerobic fitness, and hold an aero position for longer.