About Us

The Future of Human Performance.

TrainAsONE was built on a simple premise: that every runner is an "experiment of one". Founded on rigorous sports science and powered by a decade of real-world data, we are dedicated to providing the world's most personalised, effective and safe training experience.

100,000+

Runners worldwide

100M+

Kilometres analysed

100's

of Podium finishers

Dr. Sean Radford

A Message from the Founder

I didn't start TrainAsONE to build a 'fitness app.' I started it because I was a frustrated runner.

Like many of you, I spent years following rigid, static training plans. I’d hit a 'load spike,' get a niggle in my Achilles, try to 'run through it' to stick to the calendar, and end up sidelined for months. I realised that traditional coaching - even the expensive kind - was failing to account for the most important variable: the individual.

As a doctor and software engineer with a background in artificial intelligence, I knew there had to be a better way to use the GPS and heart rate data we were already collecting. The traditional plans I researched lacked scientific evidence, had a high failure rate, and often contributed to injury. I wanted a system that was smart enough to know when I was tired, flexible enough to handle life's unpredictabilities, and scientific enough to get me to a marathon start line in peak condition.

That was the birth of TrainAsONE.

Today, TrainAsONE isn't just my training partner; it’s the coach for athletes worldwide. My goal is simple: to provide every runner, from the first-timer to the elite (ultra-)marathoner, with a plan that is personal, safe, efficient, and - above all - proven by data.

I’m still out there every week, logging my runs and testing our latest algorithms. If you ever have a question about why the AI is doing what it’s doing, I’m usually the one answering the support tickets.

"We don't just guess your plan. We calculate it."

Dr. Sean Radford

Founder & CEO, TrainAsONE