18 Half marathons in South East in October 2023

Find half marathons in and around South East in October 2023 - filter events by date, display on a map or use the advanced search to find your perfect race.

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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 15 Oct
  • FREE-£53.63
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
  • Sun 1 Oct
  • £32
Tonbridge, Kent, UK

Run Kent | Half Marathon

RunThrough Events are excited to announce the return of the Tonbridge Half Marathon, this year with an added 5k & 10k, partnering with Tonbridge Rotary Club and Tonbridge Lions,

  • 13.1 miles road running
  • Sun 1 Oct
  • £20-£24
Southampton, Hampshire, UK

Solent Half Marathon

The Solent Half is the half marathon road race, held in the Autumn.

  • 13.1 miles road running
  • Sun 1 Oct
  • £35-£45
Basingstoke, Hampshire, UK

Destination Basingstoke Phillips Law Run | Half Marathon

Known for the friendly welcome, traffic free roads and scenic course, this is a ‘must do’ race.

  • 13.1 miles road running
  • Sun 1 Oct
  • £30
Stockbridge, Hampshire, UK

Clarendon Half Marathon

If you are looking for a half marathon which is off road, picturesque and challenging then running the Clarendon is the ultimate.

  • 13 miles multi terrain running
  • Sat 7 Oct
  • £99-£119
Uckfield, East Sussex, UK

London South East Spartan Trifecta Weekend | Beast 21K

Spartan races do more than test you physically and mentally.

  • 21 km multi terrain running
  • Sat 7 Oct
  • £30
Windsor, Buckinghamshire, UK

Dorney Lake | Half Marathon

Join a 5k, 10k or Half Marathon distance at the home of London 2012′s Olympic rowing events.

  • 13.1 miles road running
  • Sun 8 Oct
  • £28
Windsor, Buckinghamshire, UK

Run Dorney | Half Marathon

Join RunThrough Events for a Marathon or a Half Marathon at Dorney Lake in 2023

  • 13.1 miles road running
  • Sun 8 Oct
  • £35
Henley-on-Thames, Oxfordshire, UK

Henley | Half Marathon

Beautiful scenic route through Henley, over the famous bridge, and along the Thames valley

  • 13.1 miles road running
  • Sun 15 Oct
  • £27.95
Milton Keynes, Buckinghamshire, UK

Death Star Run | Death Star Half Marathon

Marathon and half marathon distances, on a lapped course around Caldecotte Lake, with a bespoke medal for all finishers.

  • 13.1 miles road running
  • Sat 21 Oct
  • £48
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races - October | Half Marathon

Run your race, your way Flexible running events that allow you to move the finish line mid-race

  • 13.1 miles multi terrain running
  • Sat 21 Oct
  • £35
Petworth, West Sussex, UK

Five Trails Ultra & Three Trails Half | Three Trails Half Marathon

The Five Trails 50k Ultra & Three Trails Half Marathon are stunning routes starting at the foot of the South Downs, in the lovely wooded village of Graffham

  • 13 miles trail running
  • Sun 22 Oct
  • £40
Eastbourne, East Sussex, UK

Beachy Head Marathon | Half Marathon

The Beachy Head Marathon is one the biggest off-road marathons in the UK.

  • 13.1 miles trail running
  • Sun 22 Oct
  • £40-£42
Kingston upon Thames, Surrey, UK

Royal Borough of Kingston Half Marathon

A fast, flat and famous half marathon, starting and finishing in the historic ancient marketplace, and the perfect finale to the summer racing season on a scenic and pleasurable run.

  • 13.1 miles road running
  • Sun 22 Oct
  • £26-£35
  • Entries closed
Maidstone, Kent, UK

Maidstone Half Marathon

BACK AT MOTE PARK!! It's back in 2023, and once again Sporting Events UK are delighted to be working in partnership with Maidstone Harriers on this event.

  • Entries closed
  • 13.1 miles road running
  • Sun 29 Oct
  • £35
Andover, Hampshire, UK

Andover Half Marathon

The all new road Half Marathon

  • 13.1 miles road running
  • Sun 29 Oct
  • £34
Shepperton, Surrey, UK

River Thames Half Marathon

A flat, fast and scenic half marathon running race starting and finishing at Walton Bridge.

  • 13.1 miles road running
  • Sun 29 Oct
  • £27-£35
Goudhurst, Kent, UK

Bedgebury Forest | Half Marathon

Get involved in this unforgettable race between the pines and beneath the majestic canopy of Bedgebury Forest.

  • 13.1 miles trail running