Cardiff Triathlon and Duathlon
Sun 22 Jun 2025 Cardiff, UK

Cardiff Triathlon and Duathlon

Situated in the renowned Cardiff Bay, this event stands out as a truly memorable city race. The event village and transition area are on Roald Dahl Plass in front of the Wales Millenium Centre.

6 races

  • Sun 22 Jun 2025
  • #1 of 6
Wales Millennium Centre, Cardiff

Super Sprint

09:00

Age 15 & over

£88.99-£93.99

  • 400 m lake swimming
  • 9.3 km road cycling
  • 2.5 km road running
  • Sun 22 Jun 2025
  • #2 of 6
Wales Millennium Centre, Cardiff

Sprint

08:15

Age 15 & over

£98.99-£123.99

  • 750 m lake swimming
  • 18.5 km road cycling
  • 4.7 km road running
  • Sun 22 Jun 2025
  • #3 of 6
Wales Millennium Centre, Cardiff

Standard (World Championship Qualifier)

07:00

Age 17 & over

£115.99-£120.99

  • 1500 m lake swimming
  • 40 km road cycling
  • 9 km road running
  • Sun 22 Jun 2025
  • #4 of 6
Wales Millennium Centre, Cardiff

Standard (Non Qualifying)

07:00

Age 17 & over

£115.99-£140.99

  • 1500 m lake swimming
  • 37 km road cycling
  • 9 km road running
  • Sun 22 Jun 2025
  • #5 of 6
Wales Millennium Centre, Cardiff

Legend (70.3)

06:00

Age 18 & over

£229.99-£249.99

  • 1900 m lake swimming
  • 88 km road cycling
  • 21.8 km road running
  • Sun 22 Jun 2025
  • #6 of 6
Wales Millennium Centre, Cardiff

Sprint Duathlon

07:30

Age 15 & over

£78.99-£83.99

  • 2.5 km road running
  • 18.5 km road cycling
  • 4.7 km road running

Event overview

Securing your spot in the Cardiff Triathlon and Duathlon not only grants you access to one of the UK's finest city triathlons but ensures an experience beyond compare.

Anticipate a meticulously planned route with closed roads, captivating global broadcast coverage, and vibrant racing atmosphere.

Whether you're tackling the Super-Sprint, Sprint, Standard, 70.3 triathlon, or Sprint Duathlon, the Cardiff Triathlon and Duathlon caters to all skill levels. Don't miss out on this extraordinary event!

Highlights

  • Lively Event Village

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

  • Family-friendly vibes

    Family finishes and plenty to see and do.

  • On course support

    Brilliant marshals, signage and pick-up vehicles.

  • Unique finisher mementos

    Collect the second part of our famous Adventure Championships series.

  • Spectacular scenery

    Eryri's awe-inspiring scenery is the backdrop to your race.

  • Professional timing

    Chip timing and online results.

  • All fitness levels
  • Event expo
  • Event village
  • Free venue entry
  • Newcomers
  • Spectators
  • Teams
  • Traders at event

Registration

Registration will take place on Saturday afternoon and also before the race on Sunday morning - specific times will be in your Final Instructions, which will be available on the website and via email 10 days prior to the race.

Registration is usually located on the Plass outside the Wales Millennium Centre CF10 5AL.

Transition

Transition opens early on the morning of the event and will close approximately 30 minutes before the first wave starts. You may not enter transition for any reason after the allocated time. Confirmed timings will be detailed in your Final Instructions which will be available on the website and via email 10 days prior to your race.

Transition will only be open for racking on the day of the event. It is not possible to leave your bike overnight.

  • Bag storage
  • Cafe
  • Coast
  • Music
  • Restaurant
  • Toilets
  • Urban

Event HQ

Wales Millennium Centre
Bute Place
Cardiff
Cardiff
CF10 5AL
UK

Sustainability

  • Bring your own cup
  • Plastic bottle free
  • Plastic-free event
  • Public transport links
  • Recycling
  • Reusable cups
  • Sustainability policy

The Sprint distance was my first ever triathlon. I'd definitely recommend this event to anyone, and I've already entered for next year's Olympic distance. David J

This is my 3rd Cardiff Tri at Standard distance and again it did not disappoint... It’s my hometown race and once again, I’ll still come back next year. Eleanor P

This is a very fast course with a pan flat bike and run course. The swim is also very simple... Sam A

Great event. Wanted to take part in this because of its sheer size. Glad I did it was brilliant. Darren V

Last year's Sprint was my first attempt at triathlon. I loved it so much, I entered this year's Olympic distance the following week. David J

The event itself was absolutely amazing! Loads of support even on a rainy day and the transition area in Roald Dahl Plass just made it even more special. The Swim was excellent and really fast in the calm waters of Cardiff Bay. Chris W

Loved Cardiff Tri - completed as my second Olympic distance. Registration day before was nice and easy, good set up of stalls to grab some clobber and we got socks, a cow bell, foam hand and energy bar on sign up. Sarah W

I wouldn't hesitate to recommend this one. A well organised event with a super friendly events team. Victoria W

Reviews thanks to RaceCheck

Races at event

  • Sun 22 Jun 2025
  • #1 of 6
Wales Millennium Centre, Cardiff

Super Sprint

09:00

Age 15 & over

£88.99-£93.99

  • 400 m lake swimming
  • 9.3 km road cycling
  • 2.5 km road running
  • Sun 22 Jun 2025
  • #2 of 6
Wales Millennium Centre, Cardiff

Sprint

08:15

Age 15 & over

£98.99-£123.99

  • 750 m lake swimming
  • 18.5 km road cycling
  • 4.7 km road running
  • Sun 22 Jun 2025
  • #3 of 6
Wales Millennium Centre, Cardiff

Standard (World Championship Qualifier)

07:00

Age 17 & over

£115.99-£120.99

  • 1500 m lake swimming
  • 40 km road cycling
  • 9 km road running
  • Sun 22 Jun 2025
  • #4 of 6
Wales Millennium Centre, Cardiff

Standard (Non Qualifying)

07:00

Age 17 & over

£115.99-£140.99

  • 1500 m lake swimming
  • 37 km road cycling
  • 9 km road running
  • Sun 22 Jun 2025
  • #5 of 6
Wales Millennium Centre, Cardiff

Legend (70.3)

06:00

Age 18 & over

£229.99-£249.99

  • 1900 m lake swimming
  • 88 km road cycling
  • 21.8 km road running
  • Sun 22 Jun 2025
  • #6 of 6
Wales Millennium Centre, Cardiff

Sprint Duathlon

07:30

Age 15 & over

£78.99-£83.99

  • 2.5 km road running
  • 18.5 km road cycling
  • 4.7 km road running