4

Flat Half marathons in South East in October 2026

Find flat 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.

Filter by place

Filter by date

Filter by category

Map

Event listings

Select an event for photos, video, route, location, reviews, entry fees and how to enter.

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
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
  • 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

Search options

Back to search options
4 steps to wellbeing
Sleep well

A good night's sleep is an essential foundation for a healthy lifestyle, effective training and weight control.

Train slow

Low-intensity training is easier for you, reduces the risk of injury and helps builds an efficient aerobic system.

Eat natural

Cut out sugar & junk food, reduce carbs, eat natural foods and train your body to burn fat for fuel.

Get outdoors

Fresh air, natural light and reconnecting with nature all help to improve mental and physical wellbeing.