Sat 2 - Sun 3 Aug 2025 London, UK

London T100

Formerly The London Triathlon, this is one of the world’s biggest triathlons where athletes will race through the capital on a landmark-filled route. London is calling!

3 races

  • Sat 2 Aug 2025
  • #1 of 3
Royal Victoria Dock, London

100km

00:00

Age 17 & over

£264

  • 2 km dock swimming
  • 80 km road cycling
  • 18 km road running
  • Sat 2 Aug 2025
  • #2 of 3
Royal Victoria Dock, London

Sprint

00:00

Age 17 & over

£109

  • 750 m dock swimming
  • 20 km road cycling
  • 5 km road running
  • Sat 2 Aug 2025
  • #3 of 3
Royal Victoria Dock, London

Olympic

00:00

Age 17 & over

£149

  • 1.5 km dock swimming
  • 40 km road cycling
  • 10 km road running

Event overview

Following the sell out of the 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.

Event details

  • All fitness levels
  • Event village
  • Newcomers
  • Spectators
  • Teams

Races at event

  • Sat 2 Aug 2025
  • #1 of 3
Royal Victoria Dock, London

100km

00:00

Age 17 & over

£264

  • 2 km dock swimming
  • 80 km road cycling
  • 18 km road running
  • Sat 2 Aug 2025
  • #2 of 3
Royal Victoria Dock, London

Sprint

00:00

Age 17 & over

£109

  • 750 m dock swimming
  • 20 km road cycling
  • 5 km road running
  • Sat 2 Aug 2025
  • #3 of 3
Royal Victoria Dock, London

Olympic

00:00

Age 17 & over

£149

  • 1.5 km dock swimming
  • 40 km road cycling
  • 10 km road running