Half marathons in South East in March 2026
Find half marathons in South East in March 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 1 Mar
- £20-£30
- 3 charities
Altra Brighton Half Marathon
Join the UK's Happiest Half - a fast, flat race with a buzzing Brighton atmosphere. An early season major half and one of the most popular races in the UK!
- 13.1 miles road running
- 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
- Sun 8 Mar
- £37.50-£39.50
Wight Riot
Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.
- 7 hrs multi terrain running + 47 ft ascent
- Sat 14 Mar
- £16-£35
The Sloth Scamper
Come and join in The Sloth Scamper, 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?
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- 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 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
- Sun 22 Mar
- £37-£39
Hastings Half Marathon
This is the race you'll want to keep racing, year after year. Explore the delights of the Hastings Half Marathon as it twists and turns through the historic town of Hastings and beyond.
- 13.1 miles road running + 961 ft ascent
- Sat 28 Mar
- £33-£35
London Marathon Long Training Run | Day 4
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 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
- Sun 29 Mar
- £26-£37.50
Running Tribe Races | Mar | Half Marathon
A new and unique concept where you turn up ready to conquer a Half Marathon but if you're feeling great tackle a Marathon, or go easy and run a cool 10km depending on how you feel on the day!
- 13.1 miles multi terrain running + 3002 ft ascent
- Sat 7 Mar
EnduranceLife - Sussex | Half Marathon
- 13.1 miles trail running + 2185 ft ascent
- Sun 8 Mar
Eastbourne Half Marathon
- 13.1 miles road running + 166 m ascent
- Sun 15 Mar
Milton Keynes Festival of Running | Half Marathon
- 13.1 miles road running
- Sun 22 Mar
Run Whitstable & Herne Bay Spring 5K, 10K and Half Marathon | Half Marathon
- 13.1 miles road running
- Sun 22 Mar
Twin Lakes 20 | 20 Mile
- 20 miles multi terrain running