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Harlech Triathlon - Home

Under the castle's watchful eye, the Harlech Sprint Triathlon and Duathlon is one of the best loved races on the triathlon calendar.

Fast and fun this event is both a perfect beginner triathlon or duathlon and a chance for the more competitive to grab a Personal Best.

The Sprint Triathlon begins with a 400-metre swim in Harlech swimming pool, followed by a beautiful 21km cycle and an impressive 6km run which finishes with the famous ‘Storm the Castle”.

Featuring the same stunning cycle route as the triathlon, but sandwiched between two great run routes, the Harlech duathlon has proven to be a hugely popular race.

Harlech is a small town with a big heart and this triathlon represents it perfectly!

Read reviews here

Harlech Sprint Triathlon

Swim: 400 metres, Bike: 21 km, Run: 6 km

Early Bird Price: Individual £47.00/Team Price: £56.00

Full Price: Individual £53.00/£63.00

View the routes and profiles here

Harlech Sprint Duathlon

Run: 5 km, Bike: 21 km, Run: 2.5 km

Early Bird Price: Individual £38.00/Team Price: £47.00

Full Price: Individual £43.00/£53.00

View the routes and profiles here

What’s Included

  • Access to the Event Village
  • The world’s friendliest marshals
  • Full route marking
  • Electronic chip timing
  • Web results service
  • Pick-up wagons
  • Event photography
  • Emergency support
  • Bespoke slate coasters for all finishers
  • Live bilingual commentary 
  • A feast of food at the finish line
  • Goody bag at registration
  • Free event t-shirt
  • Hoodies that can be purchased at registration and collected on the day

Read the report from last years Harlech Triathlon here

Please read the race rules

Event partners

  • Aquasphere UK
  • Superfeet