Thames Marathon - results index

The Thames Marathon is a 14 km open water swim race in the Thames River from Henley-on-Thames to Marlow. It has been organized annually since 2011 by Henley Swim.

The swim is split into 4 sections, with swimmers exiting the water at the 3 locks (Hambledon at 4km, Hurley at 10km and Temple at 11.8km).

Only unassisted (non-wetsuit) results are displayed here.

Thames Marathon route
Route Swims Fastest
Henley-on-Thames to Marlow 649 Stephen Smith - 02:05:00 (2021)

View data by year:

  • 2015 (30 finishers)
  • 2016 (44 finishers)
  • 2017 (74 finishers)
  • 2018 (105 finishers)
  • 2019 (98 finishers)
  • 2021 (77 finishers)
  • 2022 (131 finishers)
  • 2023 (90 finishers)

View organizer data



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