ATW Bristol Triathlon
Sun 6 Jul 2025 Bristol, Somerset, UK

ATW Bristol Triathlon

ATW presents the Bristol Triathlon, one of the UK's most-popular 'closed-road' triathlon events, in a vibrant city known for its culture, creativity and green spaces.

4 races

  • Sun 6 Jul
  • #1 of 4
Cumberland Basin, Bristol

Sprint Triathlon

07:00

Age 15 & over

£85

  • 750 m river swimming
  • 20 km road cycling
  • 5 km road running
  • Sun 6 Jul
  • #2 of 4
Cumberland Basin, Bristol

Sprint Aquabike

07:00

Age 15 & over

£75

  • 750 m lake swimming
  • 20 km road cycling
  • Sun 6 Jul
  • #3 of 4
Cumberland Basin, Bristol

Standard Triathlon

07:00

Age 17 & over

£105-£125

  • 1500 m lake swimming
  • 34 km road cycling
  • 10 km road running
  • Sun 6 Jul
  • #4 of 4
Cumberland Basin, Bristol

Standard Aquabike

07:00

Age 17 & over

£95

  • 1500 m lake swimming
  • 34 km road cycling

Event overview

The race is based around Bristol Harbour, starting with a swim in the Cumberland Basin, followed by a traffic-free ride on Portway under the famous Clifton suspension bridge and to round it off, an epic run alongside the River Avon.

Whether you are a novice cyclist enjoying the traffic-free route, or a serious athlete looking to post a PB, this 'closed road' event will be one you will remember. 

This is a mass-start, non-drafting event with start waves through the morning from 7am, with two distances to choose from.

If you don't want to tackle all three disciplines yourself, there is also an Aquabike (Swim-Bike) on offer for both distances and a relay over the Standard distance.

This event is for athletes of all abilities.    

Highlights

Reasons to enter this event:

  • Stunning venue 
  • Closed-road bike and run 
  • Well marked course 
  • Supportive marshals
  • Finish line snacks and goodies 
  • Custom designed medal 
  • Opportunity to watch Britain's Elite athletes in action

Elite Super SEries

Following on from the public races, there will be a chance to watch the British Triathlon Elite Super Series from 12pm, showcasing the best of Britain's triathletes, making this a day of triathlon action that is not to be missed.

Event organiser

ATW was established in 2011 by James Shipley. It has now become a national events company in the UK, specialising in running, triathlon, duathlon, aquathon, cycling, swimming and all combinations of swim-bike-run events. With over 40,000 entries a year ATW has become a firm favourite amongst people who are determined to Dream, Believe and Achieve.

  • All fitness levels
  • Event village
  • Families
  • Newcomers
  • Spectators
  • Teams

Wetsuit hire

Want to hire a wetsuit for the day or season? This facility is now available! Find out more when you book.

  • Bag storage
  • Cafe
  • Toilets

Event HQ

Cumberland Basin
Bristol
Somerset
UK

There will be no parking at the event venue, but plenty of parking options in the city centre.

Sustainability

  • Public transport links
  • Sustainability policy

Races at event

  • Sun 6 Jul
  • #1 of 4
Cumberland Basin, Bristol

Sprint Triathlon

07:00

Age 15 & over

£85

  • 750 m river swimming
  • 20 km road cycling
  • 5 km road running
  • Sun 6 Jul
  • #2 of 4
Cumberland Basin, Bristol

Sprint Aquabike

07:00

Age 15 & over

£75

  • 750 m lake swimming
  • 20 km road cycling
  • Sun 6 Jul
  • #3 of 4
Cumberland Basin, Bristol

Standard Triathlon

07:00

Age 17 & over

£105-£125

  • 1500 m lake swimming
  • 34 km road cycling
  • 10 km road running
  • Sun 6 Jul
  • #4 of 4
Cumberland Basin, Bristol

Standard Aquabike

07:00

Age 17 & over

£95

  • 1500 m lake swimming
  • 34 km road cycling