With 2025 over and summer to look ahead to, it’s a great time to think about what challenges you might want to undertake this year!
A great way to keep up the motivation throughout winter and in pre-season training is to have an event to look forward to, and with the coming season looking more hopeful for triathlons, now is a great time to start looking for a challenge! We’ve picked out a range of events – both with HIGH5 on course and not.
Here are our top triathlons in the UK for 2026:
Outlaw Series – May to July 2026
With three fantastic events to choose from, it’s easy to see why Outlaw is the UK’s favourite long distance triathlon series. If you’re looking to take on a 70.3 or full distance triathlon in 2026… then look no further! From world class organisation, fully covered on-course support to great feed stations and a fantastic post-race meal. There are so many reasons to choose Outlaw next year but get in there fast as these events sell out quickly! On course HIGH5 will be with you all the way – you can find our products at feed stations on any Outlaw Triathlon.
Snowman – 26 July 2026
Starting with an open water swim in a lake surrounded by mountains and finishing with a run leg straight up one of those mountains, The Snowman calls itself the toughest triathlon in the UK for good reason. If adventure and adrenaline is your cup of tea, then this spectacular triathlon in the heart of North Wales is for you. You’ll be supported on course with HIGH5 Energy Drink and Energy Gels at feed stations.
Birmingham Triathlon – 11 July 2026
This Triathlon will be held at the fabulous Commonwealth Games venue of Sutton Park. This beautiful rural setting with closed to traffic cycle course is a true test for competitors of all abilities, whether first time novice or experienced club and age group triathlete. The swim in Powell's Pool seen at the Commonwealth Games Triathlon 2022, is a perfect setting for the start of a memorable triathlon experience.
SWYD Sprint Triathlon – 30 August 2026
One of the standout sprint-distance events in the UK calendar is the SWYD Sprint Triathlon at Barry Island — an exciting 750 m sea swim, 20 km bike and 5 km run that attracts both first-timers and PB hunters alike. It’s not just a great race for performance, the event also serves as a World Championship sprint qualifier and a key round of the Triathlon Cymru Super Series, meaning age-group athletes can secure spots towards international competition. The course is fast and flat on closed roads, with chip timing, great medals, goodie bags and support from HIGH5 sports nutrition throughout the race experience. It’s a sell-out favourite each season, so entries fill up quick!
Brighton & Hove Triathlon - 6 September 2026
The Brighton & Hove Triathlon is a long established highlight of the UK’s Triathlon calendar. Taking on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade and offering a range of distances to suit every level, this is a great event for everyone.
If you’re taking part in any events this year, be sure to tag us on Instagram, Facebook and Twitter and show us how you use HIGH5 to fuel your race day! You can also check out our guides on race-day nutrition from Ironman to Sprint triathlon.
ZERO+ Ultra Electrolyte
Zero+ Ultra Electrolytes is our triple-strength electrolyte-carbohydrate drink for faster hydration during your toughest training session. With a hypotonic formula and higher sodium levels, Ultra Electrolytes helps you replace essential minerals quickly and stay hydrated when it matters most. Get yours here
