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Henley River Half Marathon

10 April 2027 · Henley-on-Thames, United Kingdom

Enter on the race website
Half marathon21.1 km · 13.1 mi, also 10K
Mixedterrain
95 m312 ft climbing
11°C52°F, typical on the day

Start and finish are at Remenham Farm, the launch point for the Royal Henley Rowing Regatta. The course follows the Thames on closed roads and trail paths, mixing tarmac with trail on an undulating route. The half marathon is a short opening lap plus two full laps, with about 99 metres of climbing, and the 10K is a single lap. Trail flags and A5 arrows mark the way, and marshals are on the course.

Route from RunThrough.

Map © Mapbox © OpenStreetMap.

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Elevation

0 km10 km21.2 km / 13.2 mi

Typical weather

11°C52°F average
35%chance of rain
15 km/h9 mph wind

Historical averages for this place and date.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.

What could you run here?

Get a predicted time for this course from a recent race result.

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