19 Half marathons in South East in September 2023

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

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

  • Sat 2 Sep 2023
  • £18.98
Cranleigh, Surrey, UK

TRIBE x Maverick Run Free | Half Marathon

Introducing Maverick Race's biggest TRIBE x Maverick event yet!

  • 22 km trail running
  • Sat 9 Sep 2023
  • £12-£17
Woodstock, Oxfordshire, UK

Woodstock 12

12 mile road race of 3 laps around the undulating, private roads of Blenheim Palace.

  • 12.15 miles road running
  • Sun 10 Sep 2023
  • £33-£35
Farnham, Surrey, UK

Farnham Pilgrim | Half Marathon

Farnham Pilgrim Marathon ( or Half Marathon) has been described as possibly one of the prettiest trail Events in the UK. It is set to be one of the “must-do” events of the year again!

  • 13.1 miles trail running
  • Sun 10 Sep 2023
  • £63
Dorking, Surrey, UK

Bacchus Wine Half Marathon & 10K | Half Marathon

Welcome to the Bacchus Wine Half Marathon and 10K, a celebration of award-winning English wine, fine food, fancy dress, music ... and a little bit of running.

  • 13.1 miles trail running
  • Sun 10 Sep 2023
  • £40-£42
Brockenhurst, Hampshire, UK

The Garmin New Forest | Half Marathon

The Garmin New Forest Marathon 2023 returns to the familiar location of New Park Showground, Brockenhurst in the heart of the New Forest National Park.

  • 13.1 miles multi terrain running
  • Sat 16 Sep 2023
  • £27.95
Milton Keynes, Buckinghamshire, UK

Sonic & Tails Run | Half Marathon

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

  • 13.1 miles trail running
  • Sat 16 Sep 2023
  • £35
Guildford, Surrey, UK

The Shere Multi-Terrain Event | 21K

Surrey Trek and Run are pleased to announce that this years event will be held in 2023. We believe this is one of the most stunning trail runs in the south-east of England.

  • 21 km multi terrain running
  • Sun 17 Sep 2023
  • £40
Tunbridge Wells, Kent, UK

Hospice Run | Half Marathon

Join Hospice in the Weald for their iconic Hospice Run!

  • 13.1 miles road running
  • Sun 17 Sep 2023
  • £32
Chichester, West Sussex, UK

Running Grand Prix at Goodwood Motor Circuit | Half Marathon

Join the another event at the incredible Goodwood Motor Circuit and choose from a 5k, 10k or Half Marathon!

  • 13.1 miles road running
  • Sat 23 Sep 2023
  • £29
Marlow, Buckinghamshire, UK

Sidley London Revolution | Half Marathon

Trails for all abilities right on London's doorstep as part of the London Revolution event weekend. Take in the Thames Path and finish at the festival basecamp with an ice-cold beer and live music.

  • 13.7 miles trail running + 47 m ascent
  • Sun 24 Sep 2023
  • £18
Winchester, Hampshire, UK

Winchester Marafun | Hilly 10K

Hampshire’s Historic Hilly Run Event

  • 10 km road running
  • Sun 24 Sep 2023
  • £45
Winchester, Hampshire, UK

Winchester Marafun | Half Marathon

Hampshire’s Historic Hilly Run Event

  • 13.1 miles road running
  • Sun 24 Sep 2023
  • £22-£26
Folkestone, Kent, UK

Folkestone Rotary | Half Marathon

Be part of something immeasurably special at the Folkestone Rotary Half Marathon.

  • 13.1 miles road running
  • Sun 24 Sep 2023
  • £27-£29.50
Horsham, West Sussex, UK

Run Barns Green | Half Marathon

Join one of the best-loved half marathon and 10K events in Sussex. Run Barns Green will be celebrating 40 years and we’d love to see you on that start line!

  • 13.1 miles road running
  • Sun 24 Sep 2023
  • £25
Pulborough, West Sussex, UK

Pulborough Vineyard Run | Half Marathon

Stunning views across the West Sussex Countryside to the South Downs – undulating run / walk.

  • 21 km trail running
  • Sun 24 Sep 2023
  • FREE
Horsham, West Sussex, UK

Run Barns Green | Jennings Junior Jog

2022 will be the 40th anniversary of the Half Marathon race. A chip-timed half marathon on a two-lap, closed road route.

  • 750 m road running
  • Sat 30 Sep 2023
  • £30
Worthing, West Sussex, UK

South Downs Trek | Half Marathon

Every epic journey starts with a single step.

  • 13.1 miles trekking
  • Sat 30 Sep 2023
  • £27-£30
Farnham, Hampshire, UK

Bolt Round the Holt | Half Marathon

Bolt Round the Holt, a popular fundraising event for GUTS Fighting Bowel Cancer and a super race-day experience.

  • 13.1 miles xc running
  • Sat 30 Sep 2023
  • £27-£30
Farnham, Hampshire, UK

The Bolt Round the Holt | Half Marathon

The Bolt Round the Holt, a popular fundraising event for GUTS Fighting Bowel Cancer returns for a 14th time in 2023.

  • 13.1 miles xc running

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