11 Marathons in South East in September 2023

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

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  • Sat 2 Sep
  • £40
Andover, Hampshire, UK

Andover Trail | Marathon

A very popular Marathon and Half Marathon back for the 7th year offering you everything North Hampshire has to offer.

  • 26.2 miles trail running
  • Sat 9 Sep
  • £44-£46
Wadhurst, East Sussex, UK

Bewl Water Autumn | Marathon

A scenic bi-annual race series starting from near the Bewl Water Visitor Centre (Lamberhurst) Kent and following the Bewl around the reservoir route.

  • 26.2 miles trail running
  • Sun 10 Sep
  • £38-£40
Farnham, Surrey, UK

Farnham Pilgrim | 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!

  • 26.2 miles trail running
  • Sun 10 Sep
  • £55-£57
Brockenhurst, Hampshire, UK

The Garmin New Forest | Full 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.

  • 26.2 miles multi terrain running
  • Fri 15 Sep
  • £39.95
Milton Keynes, Buckinghamshire, UK

Sonic & Tails Run | Marathon 1

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

  • 26.2 miles trail running
  • Sat 16 Sep
  • £39.95
Milton Keynes, Buckinghamshire, UK

Sonic & Tails Run | Marathon 2

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

  • 26.2 miles trail running
  • Sat 16 Sep
  • £45-£75
Guildford, Surrey, UK

The Shere Multi-Terrain Event | 42K

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.

  • 42 km multi terrain running
  • Sun 17 Sep
  • £39.95
Milton Keynes, Buckinghamshire, UK

Sonic & Tails Run | Marathon 3

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

  • 26.2 miles trail running
  • Sat 23 Sep
  • £39
Marlow, Buckinghamshire, UK

Sidley London Revolution | Marathon

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

  • 27 miles road running + 312 m ascent
  • Sun 24 Sep
  • £65-£80
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Marathon

Forget the on-road city marathon, and fill your lungs with country air whilst running off-road through stunning scenery before you conquer your marathon by a Castle drawbridge. Relay available too.

  • 26.2 miles multi terrain running
  • Sat 30 Sep
  • £40
Worthing, West Sussex, UK

South Downs Trek | Marathon

Every epic journey starts with a single step.

  • 26.2 miles trekking