Llandudno Sea Triathlon is one of our must-do UK triathlons

21 must-do UK triathlons

From sprint distance to Ironman we list 21 must-do UK triathlons

 Here are what we think are the UK's best 21 triathlons


Location: Dorney Lake, Eton
Date: July 
Distance: 750m | 21.2km | 5km
“This race is perfect for newbies to tri. The course is multi-lap which means that even if the pancake-flat course doesn’t see you on to a fantastic race result, the support from the crowds definitely will. I came away with sore hands from high-fiving all the kids watching!”
Helen Webster, 156th in 2014
See also The Deva Divas in July 


Location: Portishead, Somerset
Date:  August  
Distance: 400m | 25km | 5km
“For an extremely well-organised sprint tri event, I’d highly recommend Portishead. The lido is a great venue for the swim. For a step up from a first tri, the cycle route is challenging and hilly, but the view along the coast road is a 
See also North Bristol Tri in September


Location: Argyll & Bute, Scotland
Date: October 
Distance: 550m | 14km | 8km

“Craggy Island stands out as an unique event. The swim starts on the mainland at Oban across to the gorgeous isle of Kerrera, with an off-road bike and run following. This format set amidst a spectacular location is hard to beat. Durty Events don’t do dull and the Craggy is the jewel in its crown.”
Sean McFarlane, 2nd in 2016
See also Aviemore Triathlon  in August


Location: Eastbourne, East Sussex
Date: June  
Distance: 600m | 25km | 5km

“The Eastbourne Downs and seaside provided a dramatic backdrop and a challenging course. The race day was a joy with friendly marshals and staff. And the band at the top of the hill on the run was a lovely touch.” Nick Neter, 109th in 2016
See also The Brighton Triathlon in September


Location: Wombourne, Staffordshire
Date: April 
Distance: 400m | 20km | 5km

“Going strong for 24 years, the twice-yearly BCT Sprint was where top pro Jodie Stimpson started her career. With a pool swim and flat off-road run the race is also perfect for beginners, and Black Country Triathletes offer training days leading up to both events.” Jack Sexty, 65th in 2011
See also Blithfield Triathlon in July


Location: Llandudno, Conwy County
Date: June
Distance: 750m | 19km | 5km

“Llandudno has a spacious transition and a calm sea swim. The bike has a hill that goes on and on, followed by a fast technical downhill. It has an amazingly well supported run route with a nasty surprise at the halfway mark for the sprint-distance athletes. All in all it’s a cracking race in a beautiful part of the country.” Michael Barnett, 58th in 2016
 See also The Gower Triathlon in 16 September

Continue reading our guide to the 21 must-do triathlons in the UK (Olympic distance 2/4) 


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