Triathlon | Cardiff 2021

Cardiff 2021 Triathlon Sprint

The Cardiff Triathlon will take you on an unforgettable journey through the iconic Cardiff Bay. This beautiful area lends itself perfectly for a spectacular triathlon experience, for both racers and spectators alike. And with the addition of the event being held on entirely closed roads, the opportunity is unique for an event such as this.


27 Jun 2021




Route Description

Start your race with the exclusive opportunity to swim in Cardiff Bay. Cardiff Bay is supplied by two rivers to form a 500-acre (2.0 km2) freshwater lake around the former dockland area south of the City Centre.

Sprint competitors complete 2 laps of this super fun and speedy 9k course on closed roads. Heading out of transition under the shadow of the Wales Millenium Centre you will head along James Street and down Ferry Road. You will turn around at the Morrisons Supermarket roundabout and fly back up the road the way you came. You will then head along Lloyd George Avenue and thrill at the speed on this section, with another turn around to come at the top so that you get to fly down the avenue once again. The lap ends at the entrance to the Oval Basin and a the Wales Millenium Centre.

The Sprint run is a fast out and back run route, showing off the sights of Cardiff Bay along the way. Heading out of transition first towards the Norwegian church and along the cycle path, taking in the sites of industrial heritage that Cardiff is so renowned for. The route is flat and fast especially as you run along the Barrage. The route back gives you views of the Pierhead Building, the Wales Millenium Centre, the Senedd and so much more that you’ll have plenty to keep you motivated as you go for your PB! Once you get to the Senedd Building its time for your sprint finish; along Bute Place, around the corner and into the finish line in front of the Wales Millenium Centre with a famous Always Aim High welcome.








Important Information

Minimum Age


Wave Start Times


Cut Off Times


Covid-19 information

Are you in?

See Start List

Final Instructions

Will be sent out and available to download 1 week before the event.

We are proud that all our events are bi-lingual. Signage, registration and commentary is available in both English and Welsh.

Event Partners Cardiff Triathlon 2021


Responsible Events

Working with local communities