Flat Half marathons in South East
Find flat half marathons in South East in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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- Sat 21 Feb
- £16-£35
The Rubber Ducky Dash
For this run, not only will you earn a super cute rubber duck themed medal, but also your very own rubber ducky to take home with you!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 21 Feb
- £43-£45
Magna Carta Winter | 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 + 110 ft ascent
- Sun 22 Feb
- £16-£35
The Wacky Run
Time to get nostalgic with the Wacky Run! I'm sure a lot of us can remember this fun cartoon and some of the crazy characters such as Dick Dastardly and Muttley, Penelope Pitstop and The Ant Hill Mob.
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 7 Mar
- £16-£35
The Panda Plod
Here's another animal-inspired event for you. The featured animal this time is a panda! The medal, as always, is incredible and definitely one to add to your collection!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 7 Mar
- £33-£35
London Marathon Long Training Run | Day 1
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.
- 7 hrs trail running
- Sat 14 Mar
- £33-£35
London Marathon Long Training Run | Day 2
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.
- 7 hrs trail running
- Sat 14 Mar
- £23-£35
The Sloth Scamper | Time Challenge
Come and join in The Sloth Scamper Time Challenge where slow is the new fast and you can earn yourself a medal with an adorable sloth on to boot. Anyone know what a group of sloths is called?
- 7 hrs trail running
- Sat 21 Mar
- £16-£35
The Flying Fox
Come and join The Flying Fox event! Are you as cunning and as quick as a fox and fancy showcasing your running skills?
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 21 Mar
- £33-£35
London Marathon Long Training Run | Day 3
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with like-minded runners.
- 7 hrs trail running
- Sun 22 Mar
- £18-£40
The Dashing Dog Charity Run
Come and join in for Dashing Dog Charity run along the picturesque River Thames, not only is the scenery beautiful and you will earn one of the awesome medals!
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 28 Mar
- £23-£35
Milkshake Meander | Half Marathon
"My milkshake brings all the boys to the yard"... not quite sure where we're going with this but come and join this fantasic Milkshake Meander event!
- 13.1 miles trail running
- Sun 29 Mar
- £31
Brett Lydd Half Marathon
A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.
- 13.1 miles road running
- Sat 4 Apr
- £33-£35
London Marathon Long Training Run | Day 5
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.
- 7 hrs trail running
- Sat 11 Apr
- £16-£35
Love it or Hate it Run
Whether you are in the love it or hate it camp, I think we can all agree that the medal is super cute and definitely one which you need to add to your collection!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 18 Apr
- £16-£35
The London Run
Not made it into The London Marathon but still fancy getting a super awesome medal based on the iconic race set in the capital city?
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- 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
- £30-£35
Run Whitstable & Herne Bay May 5K, 10K and Half Marathon | Half Marathon
Run the beautiful Kent coastline from Whitstable to Herne Bay in this friendly spring event, offering a 10K for runners of all abilities.
- 13.1 miles road running
- 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 6 Jun
- £15-£35
Strawberry Shortcake Scamper
Who remembers the character Strawberry Shortcake and all her adorable friends like Orange Blossom and Lemon Meringue?! Here's your chance for a medal of her!
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sun 7 Jun
- £16-£35
The Summer Lucky Dip Run
Come and join the Summer 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!
- Road run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races