7 Half Ironman (middle distance) in South East

Find half ironman (middle distance) in and around South East for 2024/2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Join this exhilarating Endurance Weekend in the stunning Chiltern Hills! Whether you seek a weekend of endurance, picturesque sights or a chance to bond with fellow athletes, this is your opportunity!
  • Fri 21 - Sun 23 Jun
  • £100
Chesham, Buckinghamshire, UK

ATW Chiltern Endurance Weekend | Half Chiltern Endurance Challenge

Join this exhilarating Endurance Weekend in the stunning Chiltern Hills! Whether you seek a weekend of endurance, picturesque sights or a chance to bond with fellow athletes, this is your opportunity!

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21.1 km trail running
Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, and run the flat Thames path as part of an exciting multi-activity event for summer.
  • Sun 14 Jul
  • £110
Marlow, Buckinghamshire, UK

The One on the River | Marlow | Middle Distance Triathlon

Taking place across the scenic Thames Valley area. Swim the river, cycle the hilly open roads, and run the flat Thames path as part of an exciting multi-activity event for summer.

  • 1900 m river swimming
  • 91 km road cycling
  • 20 km trail running
Taking place across the scenic Thames Valley area with routes going through Culden Faw Estate. Swim the river, cycle the hilly open roads, run through the trail paths enjoying great views.
  • Sun 22 Sep
  • £110
Marlow, Buckinghamshire, UK

The One on the River | Henley | Middle Distance Triathlon

Taking place across the scenic Thames Valley area with routes going through Culden Faw Estate. Swim the river, cycle the hilly open roads, run through the trail paths enjoying great views.

  • 1900 m river swimming
  • 89 km road cycling
  • 20 km trail running
Not for the faint hearted, this race pushes competitors to their limits whilst visiting every corner of the beautiful castle estate and its surrounding rural area into the High Weald AONB.
  • Sun 29 Sep
  • £196-£295
Edenbridge, Kent, UK

Hever Castle Triathlon and Multisport Festival | Gauntlet Triathlon

Not for the faint hearted, this race pushes competitors to their limits whilst visiting every corner of the beautiful castle estate and its surrounding rural area into the High Weald AONB.

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21 km road running
  • Sun 12 May
  • £150-£155
Ringwood, Hampshire, UK

The Huntsman Triathlon | Middle Distance Triathlon

Located on the grounds that Cola the Huntsman is mentioned in the doomsday book and the famous hunting playground of William the Conqueror.

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21 km road running
  • Sun 16 Jun
  • £180-£210
Brockenhurst, Hampshire, UK

The Swashbuckler Triathlon | Middle Distance Triathlon

The start, transition and finish are all based in the historic Bucklers's Hard, a hamlet on the banks of Beaulieu River famous for its shipbuilding.

  • 1.9 km river swimming
  • 90 km road cycling
  • 22 km trail running
  • Sun 1 Sep
  • £170-£210
Ringwood, Hampshire, UK

New Forest Middle Distance Triathlon | Middle Triathlon

A stunning Triathlon with a swim in the beautiful Ellingham Waterski Lake,

  • 1.9 km lake swimming
  • 90 km road cycling
  • 21 km road running

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