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.
Click an event for full event details, location, route, sustainability, what's included and how to enter.
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!
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.
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.
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.
Located on the grounds that Cola the Huntsman is mentioned in the doomsday book and the famous hunting playground of William the Conqueror.
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.
A stunning Triathlon with a swim in the beautiful Ellingham Waterski Lake,