ATW Bristol Triathlon

JUL
12
2026
A city triathlon around Bristol Harbour with swims in the Cumberland Basin, a traffic free bike on Portway, and a riverside run. Two distance formats plus Aquabike and a Standard distance relay are available.
Sun 12 Jul 2026
Sprint Triathlon Run Standard Triathlon Run Standard Triathlon Swim Standard Triathlon Bike Sprint Triathlon Swim

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ATW Bristol Triathlon

The ATW Bristol Triathlon is organised by Active Training World and takes place around Bristol Harbour, with the swim in the Cumberland Basin, a traffic free bike course on Portway passing under the Clifton Suspension Bridge, and a run alongside the River Avon that finishes over the flyover. The route uses closed roads for the bike and run sections and the event is held as a rolling start, non drafting competition.

There are two main distance options and additional formats:

  • Sprint: 750 m swim, 21 km bike, 5 km run
  • Standard: 1500 m swim, 42 km bike, 9.6 km run

Aquabike entries are available for both distances and a relay option is offered over the Standard distance. The event provides course marshals, route signing, finish line snacks and a custom designed medal. The venue address is Brunel Lock Road, Cumberland Basin, Bristol. There is no parking at the event venue; city centre parking options are available and drop off points plus spectator areas will be highlighted in the final race information.

ATW’s entry policy allows transfers to future ATW events up to 48 hours before the event date. Visit the organization's website for the most recent information.

10 km
Standard Triathlon Run
5 km
Sprint Triathlon Run
Standard Triathlon Swim
Standard Triathlon Bike
Sprint Triathlon Swim
Sprint Triathlon Bike
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