Events / Triathlon

Cardiff Triathlon 2021

Located in the iconic Cardiff Bay, this triathlon is one of the most unforgettable city races on the calendar with the event village and transition (one of the most beautiful and striking in the sport) positioned on Roald Dahl Plass in front of the Wales Millennium Centre.

Signing up for the Cardiff Triathlon is your ticket to compete in one of the UK's finest city triathlons. Not only should you expect a completely closed road route and coverage that is beamed across the world, but you should also expect a race that you want to share with everyone. With all distances from Super-Sprint to Olympic and an ITU Age Group Qualifier there really is something for every ability at the Cardiff Triathlon.


26 Jun - 27 Jun 2021



Choose your distance

Cardiff Finish Smile Big Hair

Cardiff 2021


27 Jun 2021

Swim: 400m

Bike: 9.3km

Run: 2.5km

Find out more Cardiff Super Sprint 2021
Cardiff Bike Grafitti

Cardiff 2021


27 Jun 2021

Swim: 750m

Bike: 18.5km

Run: 4.7km

Find out more Cardiff Sprint 2021
Cardiff swim exit

Cardiff 2021


27 Jun 2021

Swim: 1500m

Bike: 37km

Run: 9km

Find out more Cardiff Olympic 2021
Cardiff bike close up

Cardiff 2021

Cardiff ITU Age Group Qualifier

27 Jun 2021

Swim: 750m

Bike: 20.4km

Run: 5.2km

Find out more Cardiff ITU Age Group Qualifier

What's Included

Cardiff busy event village

Lively Event Village

Music, commentary, shopping, food and chill out zones.

Cardiff Family Cheer

Family Friendly Vibes

Family finishes and plenty to see and do.

Cardiff Mount Line Marshals

On Course Support

Brilliant marshals, signage and pick up vehicles

Cardiff Medals

Unique Finisher Momentos!

Beautifully designed to reflect our event locations and local history.

Cardiff Run Elite Landmarks

Spectacular Location

Cardiff's unique city architecture offers a great backdrop to your race

Cardiff winner tape GBR close

Professional Timing

Chip timing, live tracker and online results

Cardiff transition pushing bikes

“The setting is brilliant, the transition area is world class, - just the best event of the season in the best city on earth! Fact.”

2019 Participant

Read reviews


Responsible Events

Working with local communities