With 2025 done and dusted, next season is looking brighter and it’s a great time to think about what races you might want to take on this year!
One great way of keeping up the motivation over the winter is to have an event lined up to work towards, now is the perfect time to book in your next challenge!
We’ve picked out a range of events from all over the country with different difficulties and atmospheres – here are our top UK running events in 2026:
Baxters Loch Ness Marathon – 27 September 2026
For the extraordinary scenery alone, Baxters Loch Ness Marathon is a must do. The Highland views couple with the onset of autumn colours makes for a spectacular and unique running experience. The organisation is all you would expect from a high-profile event, and yet still maintains a friendly appeal, managing to make every runner feel like an intrinsic part of the weekend. On the course feed stations you can look forward to HIGH5 fuelling you to the finish line.
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Brighton Marathon Weekend – 12 April 2026
It’s tough to beat the atmosphere of a big city marathon, and the Brighton Marathon is no exception. As a Brighton-based business we might be a little biased, but it’s a must-do on the UK running calendar. The 26.2-mile route starts in Preston Park, weaves through the city and along the iconic seafront, before finishing on Hove Lawns with huge crowd support helping to carry you home. With a vibrant race-day atmosphere and thousands of spectators lining the course, it’s a marathon that delivers on both scenery and support — and if you’re taking part, HIGH5 will be on course to help fuel you all the way to the finish.
Manchester Marathon – 19 April 2026
The adidas Manchester Marathon is the UK’s second-largest marathon and one of the most iconic events on the running calendar, attracting runners from across the world to the streets of Greater Manchester. Known for its fast, flat course, it’s equally loved for its electric atmosphere, with local communities turning out in force to support runners from start to finish. From music and entertainment on course to the unmistakable Mancunian spirit, it’s a race where the city truly gets behind every participant. With record-breaking numbers in recent years and HIGH5 supporting the Manchester Marathon, it’s an unmissable race-day experience for runners of all abilities.
Endure24 Reading – 5 - 7 June 2026
Endure24 is no ordinary race. Whether you’re running solo, in pairs, or as part of a team of up to 12, you’ll have 24 hours to complete as many laps as possible of a stunning 8km trail course. But it’s not just about the challenge—the atmosphere is what truly sets Endure24 apart. Often described as a “running festival,” the event brings together runners of all abilities to camp, connect, and work together towards their goals. The sense of community is unmatched, with teams cheering each other on and celebrating every lap. The HIGH5 team will be there all weekend, ready to support you with your nutritional needs—and we’ll be joining in the race ourselves! Whether you're chasing a personal milestone or simply soaking up the festival vibes, Endure24 promises an unforgettable experience for all.
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 keep you fuelled on race day! You can also check out our guides on half marathon and marathon nutrition.
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
Good luck!