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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- Sun 9 Aug
- £23-£35
Great British Bake Run | Half Marathon
Who doesn't like cake?! The Great British Bake Half Marathon Run is back for another year! The medal is a fantastic cupcake which doubles up as a magnet to go on your fridge!
- Enter online
- Flat
- Traffic free
- Age 17 & over
- 13.1 miles road running
- Sun 16 Aug
- £18-£25
Isle of Wight Half Marathon
Challenge yourself on this scenic, undulating road race across the Isle of Wight. Enjoy breathtaking coastal views, peaceful countryside lanes, and amazing local support from start to finish.
- Beginner-friendly
- Chip timing
- Enter online
- Undulating
- Event village
- Age 17 & over
- 13.1 miles multi terrain running + 183 m ascent
- Sat 12 Sep
- £43-£45
Bewl Water Autumn | Half Marathon
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon course at the same venue was previously rated one of the top UK marathons.
- Chip timing
- Enter online
- Undulating
- Age 17-80
- 13.1 miles trail running + 710 ft ascent
- Sun 27 Sep
- £31.50-£48
Windsor Half Marathon
An inspiring half marathon in Windsor Great Park, starting and finishing on the Long Walk with Windsor Castle as the backdrop - probably the most iconic of all road race finishes in the UK!
- Chip timing
- Enter online
- Undulating
- Traffic free
- Age 17 & over
- 13.1 miles road running + 167 m ascent
- Sun 27 Sep
- £25-£27
Folkestone Rotary Half Marathon
This ever popular race promises amazing coastal views and a relatively flat coastal promenade run with real PB potential.
- Chip timing
- Enter online
- Flat
- PB
- Age 17 & over
- 13.1 miles road running + 469 ft ascent
- Sat 10 Oct
- £35
The Hurt | 21km
The toughest trail run in the South East is back by popular demand. Likened to fell running, the 21K route includes steep, rocky ascent on lesser-known trails through the luscious Hurtwood Forest.
- Chip timing
- Enter online
- Hilly
- Age 17 & over
- 21 km trail running + 1551 ft ascent
- Sun 11 Oct
- £15-£130
- 7 charities
Oxford Half Marathon
Runners will enjoy the fast, flat and beautiful route through University Parks and the historic Oxford City Centre whilst celebrating running and movement with entertainment and cheering fans!
- Carbon neutral
- Venue accessible
- Recycling
- Beginner-friendly
- Entertainment
- Chip timing
- Enter online
- Flat
- PB
- Traffic free
- Fancy dress
- Event village
- Urban
- Park
- Sustainability policy
- Public transport links
- Age 16 & over
- 13.1 miles road running
- Sun 25 Oct
- £37.50-£39.50
Wight Lines
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.
- Beginner-friendly
- Enter online
- Flat
- Event village
- Coast
- Public transport links
- Age 18 & over
- 7 hrs trail running + 47 ft ascent
- Sun 1 Nov
- £33
Wendover Woods Half Marathon
An autumnal trail treat to delight the senses and lift your spirit as you clock the miles and enjoy the majestic beauty of Wendover Forest. See you there!
- Enter online
- Undulating
- Age 17 & over
- 13.1 miles trail running + 1483 ft ascent
- Sun 8 Nov
- £25-£37
Remembrance Day Run | South | Half Marathon
Your chance to remember those who have given the ultimate sacrifice during conflicts around the world, with a two-minute silence, a half marathon, then a Remembrance medal, goody bag and special pin.
- Enter online
- Flat
- Age 17 & over
- 13.1 miles trail running
- Sat 7 - Sun 8 Feb
Portsmouth/Langstone Coastal Half Marathons
- Half marathon 2
- Sun 8 Feb
Farnborough Winter Half Marathon | Half Marathon
- 13.1 miles road running + 393 ft ascent
- Sun 8 Feb
The One in the Woods | Henley | Half Marathon
- 13.1 miles trail running
- Sun 22 Feb
Hendy Tunbridge Wells Half Marathon
- 13.1 miles road running + 833 ft ascent
- Sun 22 Feb
The Milton Keynes 5K, 10K and Half Marathon Winter Warmer Run | Half Marathon
- 13.1 miles trail running + 124 m ascent
- Sun 22 Feb
Awbridge Half Marathon & 10 Mile | Half Marathon
- 13.1 miles trail running
- Sun 22 Feb
David Cliff Wokingham Half Marathon | Half Marathon
- 13.1 miles road running
- Sat 7 Mar
EnduranceLife - Sussex | Half Marathon
- 13.1 miles trail running + 2185 ft ascent