Henley River Half Marathon

Henley-on-Thames, United Kingdom • 5 Sep 2026

Henley River Half Marathon, 10K & Junior Race - 5 September 2026

The Henley River event is a mixed terrain running event along the banks of the Thames, with start and finish at Remenham Farm, Remenham Lane, Henley-on-Thames. It is organised by RunThrough and takes place on 5 September 2026.

Distances and format

  • Half Marathon: 1 mini lap plus 2 laps; elevation 98 m; mixed, undulating
  • 10K: 1 lap; elevation 46 m; mixed, undulating
  • Junior Race: out and back; mixed, undulating

Entries include a unique themed medal, chip timed results, free race photos and post race goodies. The course is marked with trail flags and A5 arrows, and marshals are positioned to guide and support runners. Laps and course layout are specified for each distance.

An event village provides food and drink options and partner giveaways at the finish. A Henley River event t-shirt is available at a discounted price when purchased as part of entry through the listed apparel partner. The organiser notes a focus on sustainability as part of event planning and operations. Visit the organization's website for the most recent information.

Race information

Half Marathon
Half Marathon
10 km
10k
Juniors
Visit the organization's website for the most recent information.
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