Southend Triathlon

JUN
21
2026
A coastal triathlon at Uncle Toms Cabin in Southend-on-Sea offering sprint, standard, aquabike and team relay options with chip timing, water safety cover, marked swim buoys and a bespoke finisher medal.
Sun 21 Jun 2026
Team Relay – Swim Sprint Triathlon – Run Standard Triathlon – Run Team Relay – Run Aquabike – Bike

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Southend Triathlon

The Southend Triathlon is scheduled for 21 June 2026 and takes place at the car park area of Uncle Toms Cabin, Shoebury Common Road, Southend-on-Sea, SS3 9HG. The event runs several race formats across swim, bike and run disciplines and includes an Aqua Bike and a Team Relay option.

Available distances include:

  • Sprint: 750 m swim, 20 km bike, 5 km run
  • Standard: 1500 m swim, 40 km bike, 10 km run
  • Aqua Bike Standard: 1500 m swim, 40 km bike
  • Team Relay Standard: 1500 m swim, 40 km bike, 10 km run - minimum of 3 people

Entries include a fully signposted course, chip timing, a large water safety team with boat support, first aid team and response vehicle, security and stewards, and a secure transition area. The swim course is marked with large race buoys. The event provides race equipment items such as a bespoke metal medal, a race belt, a branded Sundried swim cap, temporary race number tattoos and race numbers. Organisers list a team of 50+ staff on event day and marshal support along the course.

The description of the event notes a coastal mass-start swim, a red carpet finish, and community-focused organisation bringing local sporting groups together. Visit the organization's website for the most recent information.

10 km
Standard Triathlon – Run
10 km
Team Relay – Run
5 km
Sprint Triathlon – Run
Team Relay – Swim
Aquabike – Bike
Aquabike – Swim
Sprint Triathlon – Bike
Sprint Triathlon – Swim
Standard Triathlon – Bike
Standard Triathlon – Swim
Team Relay – Bike