#RedefiningTriathlon

Singapore T100 2025

Get your A-race booked now for 2025!

TRIATHLON

2-3 August

|

London

Sprint Triathlon

Triathlon

race info

Distance

25.75 KM

Swim

0.75 km

Bike

20 km

Run

5 km

London T100 Triathlon 2025

Register your interest

Pre-sale for London T100 2025 is now closed – entries will go back on sale soon. 2024 was a sell-out event with over 4,000 participants, so get your name on the list to be first to hear when entries reopen!

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Overview

Following the sell out of our 2024 event, join thousands of athletes from around the globe in one of the largest and most iconic triathlons in the world! The London T100 Triathlon offers a unique and unforgettable, closed-roads racing experience through the iconic city centre. A feeling that you won’t find anywhere else.

Race Courses

2024 course map shown. 2025 courses subject to change.

The Swim

The London T100 Triathlon is set to take place in the iconic Royal Victoria Docks, a venue known for its rich maritime history and striking urban landscape. 

The freshwater 750m swim will set off in a rolling start format from the start pontoon located just outside the Excel Centre. Please make sure you arrive at the swim start area 20 minutes prior to your race start. 

water CUT-OFF

The experienced age-group triathlon is before the professional race, which means there will be cut-off times imposed on each leg to ensure we’re ready to roll for the cameras at 3pm. Please take note of these cut-off timings prior to registering for the race.

Swim cut-off: Completing the first 200m within 5 minutes, completing 2km within 55 minutes after your swim wave start.

The Bike

The London T100 Triathlon bike course offers a dynamic and scenic ride through some of the city’s most iconic landmarks. For sprint and super sprint athletes, the cycling route loops around the vibrant Docklands area, providing a fast and exciting urban course.

Olympic and T100 athletes will  head out towards Big Ben. This extended route takes them past several of London’s most famous sites, including the London Eye, Tower Bridge, and the Tower of London.

This diverse course not only challenges athletes with its urban terrain but also offers breathtaking views of the city’s historical and cultural landmarks, creating a truly unforgettable cycling experience.

CUT-OFF

The experienced age-group triathlon is before the professional race, which means there will be cut-off times imposed on each leg to ensure we’re ready to roll for the cameras at 3pm. Please take note of these cut-off timings prior to registering for the race.

Bike cut-off: 4 hours 30 minutes after your swim wave start

The Run

The London T100 Triathlon’s run course will take athletes alongside the scenic Royal Victoria Docks, close to the ExCeL Centre. This route offers participants a picturesque and invigorating experience, with stunning views of the water and the iconic London skyline. 

The course is designed to be flat and fast, ideal for both competitive runners and those looking to enjoy the unique atmosphere of this urban venue. Runners will benefit from the well-maintained paths and the enthusiastic support of spectators, ensuring a memorable and motivating end to the triathlon.

The run course will vary depending on the competition you are entered into. All T100 participants will complete 6 laps of the 3km course. 

For all other distances the course is 2.5km in length. Olympic distance participants will complete 4 laps, Sprint participants will complete 2 laps, and Super Sprint will complete 1 lap.

CUT-OFF

The experienced age-group triathlon is before the professional race, which means there will be cut-off times imposed on each leg to ensure we’re ready to roll for the cameras at 3pm. Please take note of these cut-off timings prior to registering for the race.

Run cut-off: 6 hours 30 minutes after your swim wave start

Venue Map

Spectator Viewpoints

London T100 Triathlon Parking Map

Benefits

You Won't Want To Miss This!

THE ULTIMATE TEST FOR ALL ABILITIES

Whether you're new to tri or a seasoned competitor, the London T100 has something for everyone.

UNIQUE T100 RACE PACK WITH ENTRY

Included with every sprint triathlon entry is your Official T100 race T-Shirt, Race Drawstring Bag, and much more.

FOLLOW IN THE PROS' FOOTSTEPS

Join the global triathlon family and race on the closed roads just like the world's top professional triathletes.

Race On The Streets Of London

Line up in Britain’s capital and join one of the world’s biggest triathlons, as you race past iconic sites like Big Ben.

Singapore T100 Age-Group Open
Three reasons you should race the 100km distance

Gallery

2023 moments

GENERAL REFUNDS

We understand that sometimes things just don’t go to plan! That’s why we have an industry leading refund policy to help you feel confident in signing up for our events.

  1. 50% refund until 30 days prior to race day (request in writing)
  2. 25% up to 7 days prior to race day (request in writing)
  3. No refund after 7 days prior to race day

GENERAL REFUNDS

We understand that sometimes things just don’t go to plan! That’s why we have an industry leading refund policy to help you feel confident in signing up for our events.

  1. 50% refund until 30 days prior to race day (request in writing)
  2. 25% up to 7 days prior to race day (request in writing)
  3. No refund after 7 days prior to race day

Contact Us

Need help or have more questions? Don’t hesitate to get in touch.

Participant Info

Don't Miss Out – Join Us In London!

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