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Half marathons in South East in October 2026

Find half marathons in South East in October 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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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.
  • Sat 10 Oct
  • £35
Guildford, Surrey, UK

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.

  • 21 km trail running + 1551 ft ascent
  • Chip timing
  • Enter online
  • Hilly
  • Age 17 & over
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!
  • Sun 11 Oct
  • £15-£130
Oxford, Oxfordshire, UK

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!

  • 13.1 miles road running
  • 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 17 & over
An unforgettable race between the pines and beneath the majestic canopy of Bedgebury Forest - a trail race that will ignite your racer's heart.
  • Sun 18 Oct
  • £32
Goudhurst, Kent, UK

Bedgebury Forest Half Marathon

An unforgettable race between the pines and beneath the majestic canopy of Bedgebury Forest - a trail race that will ignite your racer's heart.

  • 13.1 miles trail running + 1030 ft ascent
  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 17 & over
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.
  • Sun 25 Oct
  • £37.50-£39.50
Lymington, Hampshire, UK

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.

  • 7 hrs trail running + 47 ft ascent
  • Beginner-friendly
  • Enter online
  • Flat
  • Event village
  • Coast
  • Public transport links
  • Age 18 & over
A new and unique concept where you decide how many loops you feel capable of on the day from 10km up to an ultra marathon! Push yourself further or go easy.
  • Sun 25 Oct
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Oct

A new and unique concept where you decide how many loops you feel capable of on the day from 10km up to an ultra marathon! Push yourself further or go easy.

  • 1 day multi terrain running
  • Beginner-friendly
  • Dogs allowed at venue
  • Enter online
  • Park
  • Rural
  • Public transport links
  • All ages
  • Sat 3 Oct
  • £44-£46
Lewes, East Sussex, UK

Dark Downs Half Marathon

  • 13.8 miles trail running + 1686 ft ascent
  • Sun 4 Oct
  • From £30.40
Basingstoke, Hampshire, UK

Destination Basingstoke Phillips Law Half Marathon, 10K & 5K | Half Marathon

  • 13.1 miles road running + 872 ft ascent
  • Sun 4 Oct
  • £35
Stockbridge, Hampshire, UK

Clarendon Marathon | Half Marathon

  • 13 miles multi terrain running
  • Sun 18 Oct
  • £30-£40
Maidstone, Kent, UK

Maidstone Half Marathon

  • 13.1 miles road running
  • Sun 25 Oct
  • £35-£37
Walton-on-Thames, Surrey, UK

River Thames Half Marathon

  • 13.1 miles road running
  • Sun 25 Oct
  • £32-£34
Windsor, Buckinghamshire, UK

Windsor Dorney Lakeside Half Marathon

  • 13.1 miles road running

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