Storm the Castle!
Events / Duathlon
Harlech Duathlon 2025
Under the castle's watchful eye, the Harlech Sprint Duathlon is one of the best-loved races on the calendar. With a stunning cycle sandwiched between two short runs, it's perfect for beginners and a great season opener for the more competitive. Explore the historic town, beautiful coastline and cross the finish line to a knight's welcome!
This event is an Always Aim High Community Event. Profits from our Community Events go towards supporting amazing local projects and community groups like Harlech Triathlon Club, the Community Council and Mountain Rescue.
Choose your distance
Harlech 2025
Sprint
06 Apr 2025
Run: 5km
Bike: 21.5km
Run: 2.2km
What's Included
Lively Event Village
Music, commentary, shopping and food with a fun and supportive atmosphere
Friendly and Inclusive
Something for everyone
On Course Support
Brilliant marshals, signage and pick up vehicles
Unique Finisher Mementos!
Beautifully designed to reflect our event locations and local history.
Spectacular location
Castles, coast and a historic town
Professional Timing
Chip timing & live online results
Event Information
Harlech Duathlon 2025
FAQs
Harlech Duathlon 2025
Travel & Accommodation
Harlech Duathlon 2025
Info for locals
Harlech Duathlon 2025
Volunteer
Harlech Duathlon 2025
Gallery
Harlech Duathlon 2025
Race Reports
We are proud that all our events are bilingual. Signs, registration and commentary are available in English and Welsh.
Event Partners
Working with local communities
Looking after our environment
Find out more about Looking after our environment
Tees for Trees
Find out more about Tees for Trees