Half marathons in South East
Find 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- 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
- Thu 2 Apr
- £23-£35
Eggcellent Easter Orange Run | Half Marathon
Come and join the day of running and aim to complete a half marathon at your own pace on a scenic course then receive a fantastic Easter egg themed medal and goody bag at the finish!
- 13.1 miles trail running
- Fri 3 Apr
- £23-£35
Eggcellent Easter Pink Run | Half Marathon
The Eggcellent Easter Pink Run is the second event in the five-day series where you can earn the fantastic easter egg medal in pink!
- 13.1 miles trail 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 4 Apr
- £23-£35
Eggcellent Easter Green Run | Half Marathon
The Eggcellent Easter Green Run is the third event in the five-day series where you can earn the fantastic easter egg medal in green!
- 13.1 miles trail running
- Sun 5 Apr
- £23-£35
Eggcellent Easter Purple Run | Half Marathon
The Eggcellent Easter Purple Run is the fourth event in the five day series where you can earn the fantastic easter egg medal, this time in purple!
- 13.1 miles trail running
- Mon 6 Apr
- £23-£35
Eggcellent Easter Blue Run | Half Marathon
The Eggcellent Easter Blue Run is the fifth and final event in the five day series where you can earn the fantastic easter egg medal, this time in blue!
- 13.1 miles trail running
- Sat 11 Apr
- £15-£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
- Fri 17 Apr
- £15-£27
Midweek Medal Madness Run April | Half Marathon
The aim of the midweek runs is to hold events 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.
- 13.1 miles trail running
- Sat 18 Apr
- £15-£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
- Sat 18 Apr
- FREE-£36
Spring Trail Series | 12K
Join over 1,200 runners and walkers to the Serpent Trail, a stunning route that weaves through the greensand hills, rivers, woodland, and lowland heath of the South Downs National Park.
- 12 km trail running + 130 m ascent
- Sun 19 Apr
- £31
Kent Spring Half Marathon
A superbly crafted spring half marathon through some of Kent's prettiest countryside for your racing pleasure... Will you accept the challenge?
- 13.1 miles multi terrain running + 669 ft ascent
- Fri 1 May
- £15-£27
Midweek Chasing Numbers May | Half Marathon
The aim of the midweek runs is to hold events 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.
- 13.1 miles trail running
- Sun 3 May
- £39
Three Forts Challenge | Half Marathon
Welcome to the best running event for miles! Run rolling South Downs trails, climb rewarding hills, and take in sweeping coastal views in a scenic, spacious half. Run with heart. Run the hills.
- 13.1 miles multi terrain running + 1455 ft ascent
- Sun 3 May
- £40-£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
- £15-£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
- £15-£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
- £15-£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
- Fri 29 May
- £15-£27
Midweek Medal Madness | Leons Birthday Run | Half Marathon
Come and join this May Midweek Medal Madness event, where runners will also be celebrating Leon's Birthday!
- 13.1 miles road running
- Wed 3 Jun
- £25
Surrey Hills Half Marathon
Explore the beauty of the Surrey Hills on a guided trail half marathon through the scenic Area of Outstanding Natural Beauty, with woodland trails, hills and sweeping views.
- 13 miles trail running
- 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
- Sat 6 - Sun 7 Jun
- £95-£105
- Team places only
Endure24 | Reading
The UK’s biggest 24-hour relay! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the stunning 8km course as you can. How far can you go in 24 hours?
- 24 hrs multi terrain running