- Sun 10 Sep
- £30-£155
Brighton and Hove Triathlon
Take on the fast and flat traffic-free route from Hove Lawns along the famous seafront promenade! Well established as one of the biggest events in the triathlon calendar plus children's triathlons.
- Kids triathlon 4
- Sea swim
- Sprint aquathlon
- Standard aquathlon
- Super sprint triathlon 2
- + 2 more races
- Sat 23 - Sun 24 Sep
- £35-£295
Hever Castle Triathlon and Multisport Festival
Triathlon, duathlon, aquabike, aquathlon, swim and run events based at the spectacular Hever Castle itself with routes into the High Weald AONB and nearby countryside - for all ages and abilities.
- Half Ironman
- Olympic triathlon
- Sprint triathlon 2
- Super sprint triathlon
- Novice triathlon
- + 16 more races
- Families
- Wheelchair users
- Recycling
- Newcomers
- Event village
- Event expo
- Park
- Rural
- Free venue entry
- Sustainability policy
- Age 9 & over
- Events
- Sun 3 Sep
- £60-£123
Reading Triathlon
Celebrating 40 Years of Triathlon in the UK
- Sprint aquathlon
- Standard aquabike
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- + 0 more races
- Sun 3 Sep
- £66-£179
New Forest Middle Distance Triathlon
A stunning Triathlon with a swim in the beautiful Ellingham Waterski Lake, bike through the gorgeous New Forest with its wild ponies and horses finishing with a typically New Forest run...
- Sprint duathlon
- Standard aquabike
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- + 0 more races
- Sun 10 Sep
- £21-£27
The KidstriUK Bognor Regis Triathlon
Welcome to Award winning KidstriUK Bognor Triathlon.
- Novice triathlon 2
- Kids triathlon 5
- Kids duathlon 2
- Sun 10 Sep
- £75-£110
The 1066
First Stride Events is thrilled to be bringing triathlon to the 1066 coastline.
- Sprint triathlon
- Sprint aquabike
- Olympic triathlon
- Standard aquabike
- Half Ironman
- + 1 more races
- Sun 10 Sep
- £60-£90
The 1066 Triathlon
First Stride Events is Thrilled to be bringing Triathlon to the 1066 coastline.
- Sprint aquabike
- Sprint triathlon
- Standard aquabike
- Olympic triathlon
- Middle aquabike
- + 1 more races
- Sun 10 Sep
- FREE
Junior Para Triathlon
Have a go at a swim, bike and run or just one or two of these if you don't want to do it all.
- Kids triathlon 5
- Sat 16 Sep
- £126-£360
Impetus Private Equity Triathlon
Held in 2023, the Impetus Private Equity Triathlon is one of the highlights of the Private Equity Calendar and a fun day out for all the family to enjoy.
- Sprint triathlon 2
- Olympic triathlon
- Sprint duathlon
- Sun 17 Sep
- FREE
World's 1st FreeTri Series - Walton
Triathlon, isn't that a sport for olympians that requires super human fitness and expensive gear?
- Kids triathlon 2
- Novice triathlon
- Super sprint triathlon
- Sun 17 Sep
- £45-£70
NISV Triathlon
Indoor pool Sprint & Olympic distance Triathlon in South Wales. Great event for beginners or for more experienced athletes.
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Sun 17 Sep
- £42-£72
Woking Triathlon - Autumn
Now a regular fixture of the local triathlon scene Woking Triathlon has become a popular race with athletes coming back year after year.
- Kids aquathlon 4
- Sprint aquathlon
- Super sprint triathlon
- Sprint triathlon
- Sun 17 Sep
- £39.95-£111
Season Finale Triathlon
A range of triathlon distances to suit all ages and abilities. A flat course making use of the superb facilities at the Olympic 2012 venue, with chip timing and a superb medal at the finish.
- Kids duathlon
- Kids triathlon
- Novice triathlon 2
- Sprint triathlon
- Olympic triathlon
- + 0 more races
- Sun 17 Sep
- £39-£50
Goodwood Duathlon
The Goodwood Duathlon allows you to experience this classic motor circuit in a way like no other.
- Sprint duathlon
- Standard duathlon
- Sun 24 Sep
- £40-£55
Holly Hill Triathlon
Holly Hill boasts a new multi million pound leisure complex with a gorgeous 25m pool. The bike route is around the local roads around Lock's Heath and the run route is on quiet paths.
- Super sprint triathlon
- Sprint triathlon
- Sun 24 Sep
- £55-£95
Eton Dorney Triathlons
The Olympic venue, Eton Dorney, offers pan flat, traffic-free roads, and a beautiful clear lake.
- Super sprint triathlon
- Sprint triathlon
- Olympic triathlon
- Sat 30 Sep
- £65-£125
The One on the River - Henley
The One on The River - Henley takes place across the scenic Thames Valley area with its routes going through Culden Faw Estate.
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Sprint duathlon
- Standard duathlon
- + 10 more races
- Sun 3 Sep
- £132
Southwater Triathlon Relays
Raw Energy Pursuits Ltd have teamed up with Horsham Amphibians Tri Club in organising this fantastic race which is now in its 34th year and as popular as ever.
- 400 m lake swimming
- 18.5 km road cycling
- 3.8 km road running
- Sat 9 Sep
- £20-£45
TRI Challenge Triathlon
Get involved in this September TRI Challenge. Enter the individual triathlon or get a team together!
- 400 m lake swimming
- 20 km road cycling
- 5 km road running