In this episode of the UKRunChat podcast, Michelle is joined by USA Triathlon coach and author Hilary Topper to talk about her new book, Unlocking the Triathlon: A Beginner’s Guide to Competing in a Triathlon.

Hilary shares her journey from failing gym class and not knowing how to swim, to taking up triathlon in her 50s, and even an 8.3-mile open water swim. She explains why triathlon is truly accessible for everyone, how runners can make the leap into multi-sport, and why cross-training can make you a stronger, more resilient runner.

We cover:

• Hilary’s journey from treadmill newbie to triathlete and coach
• Why she wrote Unlocking the Triathlon
• Practical tips for beginners: training plans, essential gear, and transitions
• How swimming and cycling can improve your running
• Balancing training with work, family, and life
• Why triathlon isn’t just about racing

If you’ve ever thought “Could I really do a triathlon?” this episode might just convince you the answer is yes.

Unlocking the Triathlon: A Beginner’s Guide to Competing in a Triathlon is out in January 2026 and is available for pre-order on Waterstones and Amazon.

Follow Hilary:

• Instagram: @hilarytopper
• Blog: atriathletesdiary.com