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      Monster Triathlon

      #race

      Monster Triathlon

      Jun 22, 2025
      Running
      Windsor, United Kingdom

      Organiser

      M
      monstertriathlon

      At a glance

      Ultramarathon, Medium Swim (2-5km), Long Cycle (100-200km)

      The Monster Triathlon ends with an ultra-marathon along the riverside of the Thames. The run will be clearly marked and goes from Slough to Windsor and then along the Thames in London, mostly on the Thames Path. Every 10k of the run, there will be water stations allowing competitors to replenish their hydration packs and get necessary food and energy.The Monster Triathlon is not only an incredible challenge, but also serves to highlight the gorgeousness and variety of the United Kingdom.

      Start point

      Windsor, United Kingdom

      Registration types

      Monster Triathlon
      5 km Swimming, 1,000 km Cycling, 50 km Running
      1000 km Cycle
      1,000 km Cycling
      5K Swim
      5 km Swimming
      50KM Ultra Marathon
      50 km Running

      Event website