Runs in UK in May 2026

• Fri 1 May
• £100-£102

Portland Pig BackYard Ultra

4.167 miles on the hour, every hour, until the there is only one left standing. Have you got what it takes for just one more loop?

• 1 day multi terrain running

• Sat 2 May
• £17

AJ Bell Junior & Mini Great Birmingham Run

Who said grown-ups should have all the fun? These events see the younger Brummie runners tackle a supercharged run in the city centre with a carnival atmosphere to get athletes off to a flying start.

• Fun run 2

• Sat 2 - Mon 4 May
• £7-£75

Mid Sussex Marathon Weekend

Be part of the action! The Mid Sussex Marathon Weekend returns for it’s 15th year in 2026. This unique sell-out Bank Holiday weekend event has something for everyone.

• 10 miler 2
• 10K run
• Marathon 2
• Fun run 6
• Multi-terrain run

• Sun 3 May
• £35-£48

AJ Bell Great Birmingham Run

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.

• 10K run
• Half marathon

• Sun 3 May
• £8-£42

Worthing RUNFEST

Race along flat, fully closed roads to a seafront finish, with Half Marathon, 10K and Family Runs, catering for all ages and abilities, with chip timing, bespoke medal and a tech t-shirt.

• 10K run
• Half marathon
• Fun run

• Sun 3 - Mon 4 May
• £12-£150

MK Marathon Weekend

The multi award-winning MK Marathon Weekend is Buckinghamshire’s most popular weekend of running and features a choice of races, extra medal for running both days and stunning Stadium MK finish!

• Marathon
• Half marathon
• 5K run
• Fun run
• 10K run

• Mon 4 May
• £16-£27

Bank Holiday Madness May

This Bank Holiday event is run as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.

• Trail run
• 5K run
• 10K run
• Half marathon
• Marathon
• + 3 more races

• Thu 7 May
• £10-£17

Kirkstall Rock up n' Run

Come and join in at Kirkstall for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.

• 5K run
• 10K run

• Fri 8 - Mon 11 May
• £10-£80

Something Wild Festival

A family-friendly trail running festival for all ages and abilities with Devon's best trail routes at its heart - plus sea swims, swimruns, guided runs, yoga, music, speakers, local food and camping!

• Trail run
• 5K run
• 10K run
• Sea swim
• Sprint swimrun
• + 7 more races

• Sat 9 May
• £17

AJ Bell Junior & Mini Great Bristol Run

Who said grown-ups should have all the fun? These events see younger Bristol runners tackle a supercharged sprint with a carnival atmosphere to get athletes off to a flying start.

• Fun run 2

• Sat 9 May
• £25-£60

The All Nations Triathlon, 5K, 10K and Half Marathon Run

Delve into an action-packed day of multisport racing, featuring an inclusive Super Sprint Triathlon, 5K, 10K and Half Marathon distances for all abilities at the stunning Olympic venue!

• 5K run
• 10K run
• Half marathon
• Super sprint triathlon

• Sat 9 May
• £33-£55

Magna Carta Summer

The Magna Carta event are based in scenic Runnymede and right near the site where the treaty of Magna Carta was agreed by King John of England and signed on 15th June 1215.

• 10K run
• Half marathon
• Marathon

• Sat 9 - Sun 10 May
• £95.50-£155.50

24 Hours South | The Offa's Dyke Ultra

The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.

• 24 hrs trail running + 8561 ft ascent

• Sun 10 May
• £39-£52

AJ Bell Great Bristol Run

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 and take on Bristol’s super-scenic routes.

• Half marathon
• 10K run

• Sun 10 May
• £24-£60

Shires and Spires

A selection of races with top reviews based in the village of Naseby famous for the Battle of Naseby in 1645. The ultra takes in Althorp, home of the Spencer family and Princess Diana's resting place.

• 10K run
• Half marathon
• Marathon
• Trail run
• Ultra run

• Sun 10 May
• £29-£38

Zig Zag Marathon and Half

Come and join in at this exclusive venue! The marathon takes on the officially measured Kirtling Road route and the half marathon follows the Windmill route. Both are undulating and very scenic.

• Half marathon
• Marathon

• 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
• £40-£85
• 6 charities

Leeds Half Marathon

The Leeds Half Marathon is Yorkshire’s biggest and probably loudest event of its kind and features an exhilarating city centre finish in Millenium Square with great atmosphere throughout!

• 13.1 miles road running

• Thu 14 May
• £10-£17

Rodley - Rock up n' Run

Come and join in at Rodley for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.

• 5K run
• 10K run

• Fri 15 - Sun 17 May
• £30
• Early bird

Keswick Mountain Festival

The UK's top outdoor sports festival! Incredible entertainment, sports events, speakers, live music, activities, brand expo, bars, food, drink and much more.

Early bird on now

• 5K run 2
• 10K run
• Half marathon
• 50K ultra run
• Fell run
• + 14 more races

• Sat 16 May
• £9-£28

Roadford Lake Trail Races

By popular demand, a selection of trail races has been added to the multi-sports weekend at the scenic Roadford Lake, with an inclusive and encouraging atmosphere, and lakeside camping.

• Fun run 2
• 5K run
• CaniCross 2
• 10K run
• Half marathon

• 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

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.

• 5K run
• 10K run
• Half marathon
• Marathon
• Ultra run
• + 1 more race

• 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
• £24-£28

Rye 10 & 5 Mile

If you want to treat yourself or a loved one to some fun and self care with a local race, then look no further; the Rye 10 & 5 Mile is a joy to race.

• Road run
• 10 miler