Half marathons in UK in May 2026
Find half marathons in UK in May 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sun 3 May
- £45-£48
Great Birmingham Run Half Marathon
Take on the Midlands' biggest and best running event! Thousands of Brummies pound the streets every year, from the heart of the city with an incredible atmosphere all the way along the 13.1-miles.
- 13.1 miles road running + 314 ft ascent
- Sun 3 May
- £36-£42
Worthing RUNFEST Half Marathon
Enjoy a fully closed road race, on flat coastal roads with a spectacular seafront finish. Chance to take home a PB along with the finishers' t-shirt and medal.
- 13.1 miles road running + 37 m ascent
- Mon 4 May
- £20-£27
Bank Holiday Madness May | Half Marathon
Come and join the day of running and aim to complete a midweek half marathon within the 7-hour time limit on a scenic course then receive a fantastic medal and goody bag at the finish!
- 13.1 miles trail running
- Mon 4 May
- £40-£50
MK Half Marathon
A popular, fast, scenic AIMS-certified race, with BARR Gold accreditation for outstanding race management featuring beautiful lakes, parks, and picturesque villages with the highest level of support.
- 13.1 miles road running + 518 ft ascent
- Sat 9 May
- £30-£35
The All Nations Triathlon, 5K, 10K and Half Marathon Run | Half Marathon
The All Nations run is a chance to don your country colours and feel like you are running for your country! Whatever your level of running, this event is open to all and a great one to be part of!
- 13.1 miles road running
- Sat 9 May
- £43-£45
Magna Carta Summer | Half Marathon
The Magna Carta Half Marathon is based in scenic Runnymede right near the historic site where the treaty of Magna Carta was agreed by King John of England and signed on 15th June 1215.
- 13.1 miles trail running + 70 ft ascent
- Sun 10 May
- £16-£35
The Spring Lucky Dip Run
Come and join the Spring Lucky Dip Run! There is no set medal for this race; instead, you will get to choose your own from a selection of medals from past events!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sun 10 May
- £35
Shires and Spires | Half Marathon
The multi-terrain half marathon is mostly on road and covers a section of the longer distance routes.
- 13.4 miles multi terrain running + 897 ft ascent
- Sun 10 May
- £29-£34
Zig Zag Half Marathon
The half marathon follows the beautiful Windmill route from the Suffolk Running Centre which is mildly undulating and very scenic with views over the local windmill.
- 13.1 miles road running + 764 ft ascent
- Sun 10 May
- £49-£52
Great Bristol Run Half Marathon
Loved by Bristolians and beyond, it's the best in the South West! Each year thousands of runners push their perseverance and passion to the limit to take on Bristol’s super-scenic half marathon route.
- 13.1 miles road running
- Sun 10 May
- £30
Something Wild Festival | Half Marathon
A stunning but tough half marathon trail race taking in the South West Coast Path for runners (and walkers) of all abilities with chip timing and medals for all, plus an uplifting festival weekend!
- 13.1 miles trail running + 2001 ft ascent
- Sat 16 May
- £16-£35
Rocky at 50 Run
Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run?
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 16 May
- £26-£28
Lincolnshire Run | Half Marathon
Welcome to a 6-hour timed running event where you can run a 5K all the way up to an ultra marathon on an out-and-back route within the time limit, with fuel stations, medal and goody bag.
- 13.1 miles trail running + 132 ft ascent
- Sat 16 May
- £65-£70
Keswick Mountain Festival | adidas TERREX Half Marathon Trail Run
This 25km is graded ‘hard’ and is on technical, fast flowing and rugged trails around Derwentwater, the Borrowdale Valley and the Watendlath Valley. Includes Full Weekend Festival Ticket in the price!
- 25 km trail running + 750 m ascent
- Sat 16 May
- £28
Roadford Lake Trail Races | Half Marathon
By popular demand, a half marathon trail race has been added to the multi-sports weekend at the scenic Roadford Lake, with an inclusive and encouraging atmosphere, and lakeside camping.
- 13.1 miles trail running + 1298 ft ascent
- Sun 17 May
- £27-£38
The Birthday Run
Zig Zag Running is 6 years old this month so why not come along and celebrate?! You are promised lots of cake!
- 5K run
- Multi-terrain run 2
- Half marathon 2
- Marathon
- Ultra run
- Sun 17 May
- £37.50-£39.50
SoBo Series | Volume 3 | Good Vibrations
Set along the beachfront promenade at Southbourne (SoBo), choose your own distance from 5K to ultra, along this flat, tarmacked, lapped route suitable for all abilities.
- 7 hrs road running
- Sun 17 May
- FREE-£40
Hackney Half
Dash through 13.1 miles of East London, with vibrant street art, live music, and unbeatable crowd support cheering you on every step of the way. Think handmade banners, high fives, and fun!
- 13.1 miles road running
- Sun 17 May
- £37-£39
Wimbledon Half Marathon
From the glorious and famous Wimbledon Common near Rushmere Pond, through the streets of Wimbledon, with a great vibe, medal, goodies and team warm-up to start!
- 13.1 miles road running + 199 ft ascent
- Thu 21 May
- £17-£29
Dun Holm Challenge | Day 1 | Half Marathon
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
- 13.1 miles trail running
- Fri 22 May
- £17-£29
Dun Holm Challenge - Day 2 | Half Marathon
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
- 13.1 miles trail running
- Sat 23 May
- £33-£38
Farmmageddon | Half Marathon
Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
- 13.1 miles trail running + 656 ft ascent
- Sat 23 May
- £17-£29
Dun Holm Challenge | Day 3 | Half Marathon
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
- 13.1 miles trail running
- Sun 24 May
- FREE-£40
Edinburgh Half Marathon
Just before the Marathon, the Half follows the same fast and flat route from the iconic castle and city sights to the coast for an explosive finish and offers genuine PB potential.
- 13.1 miles road running + 76 m ascent
- Sun 24 May
- £17-£29
Dun Holm Challenge | Day 4 | Half Marathon
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
- 13.1 miles trail running