BUILT BY AN ATHLETE.
FOR THE SPORT.
A LOVE AFFAIR
Triathlon and I have been in a love affair for thirty years. It started in 1997, at my very first race in La Grande-Motte, France — back when we were wearing crop tops and running 12 bars in our tubulars. The sport looked different then. So did I.
Three decades later, not a single day goes by without triathlon crossing my mind. Sprint races, relays, Ironmans, aquathlons, duathlons, swimrun, X-terras' — I've loved every version of it. I'm the kind of athlete who builds his own bikes, obsesses over marginal gains, and will happily spend an evening down a rabbit hole of tyre compounds and wax coatings. I also spent years on my local tri club's committee, and will happily talk training zones with anyone who asks.
The sport has a way of taking over. Thirty years in, it has taken over completely — and I wouldn't have it any other way. My wife races. Our two kids swim, bike, and run. We don't do it to win. We do it because it's who we are.
HOW IT STARTED
It started with a spreadsheet.
I was coaching my wife through her first Ironman — the way coaches did before software existed. Excel formulas, printed pages, sessions uploaded to her Garmin one by one. She's meticulous. She trusted the process. She qualified for Kona on her first attempt, topping one of the most competitive age groups on the circuit.
She also obliterated my personal bests. I couldn't be prouder.
But the spreadsheet was friction. So I built a simple dashboard so she could check her plan from anywhere. Then she asked for sessions. So I built a generator. Then my brain got wild, and I fell down the rabbit hole. Once I grasped the power of what I was building and the value it could bring, I doubled down. That's WattX.
THE PLATFORM
Training three disciplines while holding down a career, raising a family, and actually showing up rested — that requires more than motivation. It requires the right tools. Tools that think ahead, adapt to real life, and remove the friction between intent and execution.
That's what I wished had existed when I started racing seriously. Everything a triathlete needs — training plans that adapt to your fatigue and your life, a session generator that pushes structured workouts to your device in seconds, race analysis that tells you how you actually performed, nutrition calculated from your predicted splits, your bikes, your thresholds, your history — all connected. One brain.
I've spent years training, racing, coaching friends, volunteering, advising anyone who asked. WattX is the next chapter of that. Most of it is completely free, because the sport gave me everything, and giving back is the point. I'll keep building, improving, and being its most demanding user. The standard doesn't change regardless of who's watching.
Read the guides for how thresholds (CSS, FTP, FT), zones, and race pacing fit together — then explore the tools. Dial in your numbers. See you on the start line.