- Sun 9 Jul
- £180-£390
IronBourne Long Distance Triathlon
Full and middle distance triathlons on the Sunshine Coast where athletes of all abilities can experience the beauty of the South Downs, starting with a spectacular jump from the historic pier!
- Ironman
- Half Ironman
- Long aquabike
- Middle aquabike
- Sea swim
- + 1 more races
- Sun 9 Jul
- £240-£495
Hever Castle Festival of Endurance
Ready for a serious challenge? Middle to ultra distance triathlon, duathlon, aquabike, aquathlon, swim and run events based at Hever Castle itself with routes into Ashdown Forest and the South Downs.
- Half Ironman
- Ironman
- Middle duathlon
- Long duathlon
- Middle aquabike
- + 11 more races
- Wheelchair users
- Recycling
- Newcomers
- Event village
- Event expo
- Park
- Rural
- Free venue entry
- Sustainability policy
- Age 18 & over
- Events
- Sun 2 Jul
- £25-£44
Ocean Lake Triathlon Sprint Triathlon 2
This is a beautiful open water race series of 2 events suitable for novices, age group and elite athletes looking for 400m, 750m distances to practice.
- Novice triathlon
- Sprint triathlon
- Wed 5 Jul
- £49-£76
Dorney Evening
Take on a Sprint or Super Sprint distance triathlon around Dorney Lake in 2023 and take the opportunity to race around this unique and inspiring Olympic venue!
- Super sprint triathlon
- Sprint triathlon
- Sprint aquabike
- Wed 5 Jul
- £49-£76
Dorney Evening Triathlon
Take on a Sprint or Super Sprint distance triathlon around Dorney Lake in 2023 and take the opportunity to race around this unique and inspiring Olympic venue!
- Super sprint triathlon
- Sprint triathlon
- Sprint aquabike
- Sun 9 Jul
- £65-£125
The One on The River - Summer Edition
The One on The River takes place across the scenic Thames Valley area.
- Sprint triathlon
- Olympic triathlon
- Half Ironman
- Sprint aquabike
- Standard aquabike
- + 4 more races
- Sun 9 Jul
- £50-£56
Guildford
Take on a Sprint triathlon or Aquathlon around Guildford in 2023 and take the opportunity to race around this unique venue!
- Kids aquathlon 4
- Sprint triathlon
- Sun 9 Jul
- 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 9 Jul
- £24-£35
Dartford Bridge Triathlon
The 7th Bridge Children’s Triathlon will take place in 2023.
- Kids triathlon 6
- Super sprint triathlon
- Sun 16 Jul
- £21-£27
The KidstriUK Billingshurst Triathlon
Welcome to the award-winning KidstriUK Billingshurst Triathlon which is an encouraging way for young people to try the sport out for the first time!
- Kids duathlon 2
- Novice triathlon 2
- Kids triathlon 5
- Sun 16 Jul
- £70-£105
Dorney Triathlon
Take on a Sprint or Standard distance triathlon around Dorney Lake in 2023 and take the opportunity to race around this unique and inspiring Olympic venue!
- Sprint triathlon
- Olympic triathlon
- Sprint aquabike
- Standard aquabike
- Sat 22 Jul
- £30-£35
UK Kids Fun Triathlon Henley-on-Thames
The Henley UK Kids Fun Triathlon is now in its 11th year and held within the grounds of Henley Leisure Centre & Gillotts School,
- Kids triathlon 9
- Sun 23 Jul
- £70-£89
Henley Triathlon
Join UK Triathlon for the 14th year of this popular event taking place at Henley Leisure Centre and within the grounds of Gillotts School.
- Novice triathlon 2
- Super sprint triathlon
- Sprint triathlon
- Sun 23 Jul
- £36-£59.50
Eton Dorney Family Triathlon
Eton Dorney Family Triathlon sees the return of junior racing to Dorney Lake alongside one and only sprint triathlon event at the venue.
- Kids triathlon 5
- Novice triathlon
- Super sprint triathlon
- Sprint triathlon
- Sat 1 Jul
- £111
Banana Triathlon | Bunch of Bananas
The Banana Triathlon is in the middle of our three event series, welcoming triathletes to Dorney Lake every summer.
- 800 m lake swimming
- 31.8 km road cycling
- 7.5 km road running
- Sat 1 Jul
- £39.99
Banana Triathlon | Banana Split (15+ years)
The Banana Triathlon is in the middle of our three event series, welcoming triathletes to Dorney Lake every summer.
- 200 m lake swimming
- 5.3 km road cycling
- 2.5 km road running
- Sat 1 Jul
- £39.99
Banana Triathlon | Banana Split (11-14 years)
The Banana Triathlon is in the middle of our three event series, welcoming triathletes to Dorney Lake every summer.
- 200 m lake swimming
- 5.3 km road cycling
- 1.8 km road running
- Sun 2 Jul
- £55-£80
The Oxfordshire Triathlon Series - July
The Oxfordshire Triathlon Series for 2023 will consist of 2 races spread across the summer, July and August.
- 1 km lake swimming
- 35 km road cycling
- 7.5 km road running
- Sun 2 Jul
- £65-£71
Thorpe Park Sprint Triathlon
Join RunThrough Events for the Brand New Thorpe Park Sprint Triathlon in 2023
- 750 m lake swimming
- 20 km road cycling
- 5 km road running
- Sat 8 Jul
- £60
FixAddiction Triathlon
Get involved in this superb summer triathlon. Enjoy a great day out and make sure you bring your sunscreen!
- 400 m lake swimming
- 20 km road cycling
- 5 km road running
- Sun 9 Jul
- £50-£75
Active Life Oysterman Triathlon
This is a very unique sprint distance event consisting of a 500m sea swim followed by a 20km cycle and finishing with a stunning yet flat 5km coastal run.
- 500 m sea swimming
- 20 km road cycling
- 5 km road running
- Sat 22 Jul
- £195-£235
Castle to Coast Triathlon
An Epic Point To Point Adventure
- 1.2 miles lake swimming
- 66 miles road cycling
- 14 miles trail running