Tom Fokkens-Ancery
Founder and Head Coach
I got into triathlon because I needed a challenge.
After years in high-level TaeKwon-Do, with a black belt, multiple national titles, and a silver medal at the European Championships, I went looking for a something that pushed me in a different way. So I picked triathlon.
Fifteen years later, I coach athletes full-time. But this wasn’t a straight path. It was shaped by frustration.
I followed generic plans. Worked with coaches who drifted. Chased numbers that didn’t translate to better racing. I trained harder, got fitter, and still raced worse. Injuries were shrugged off, long-term development ignored, and technique sidelined for data points.
That frustration is the foundation of how I coach now. Sense Endurance was built to strip away the noise and bring the focus back to what actually makes athletes race better: strength, skill, and smart work over empty metrics.
Learning From the Best
Building Sense Endurance Coaching wasn’t just about my racing background. I wanted a coaching approach that actually worked in the real world, not just on paper. I went looking for the best foundations I could find.
I became a Trisutto Certified Coach and 80/20 Endurance Certified, grounding my practical experience in proven principles. But the real shift came when I worked with Brett Sutton through his Coach the Coach Programme. That’s where my philosophy truly took shape.
What I took from Brett wasn’t a set of drills or a magic formula. It was a way of thinking:
Durability over volume
Controlled intensity over guesswork
Biomechanics over vanity metrics
Form under fatigue
And above all: consistency beats chaos.
This mindset shapes my coaching approach today.