Thames Path 100

Richmond, United Kingdom • 2-3 May 2026

Course Overview

The Thames Path 100 is a continuous 100 mile (161 km) trail race that follows the Thames Path from London to Oxford. The point-to-point route starts at Richmond Old Town Hall in South West London and finishes at Queen's College Sports Ground in the centre of Oxford. The course follows the river against its flow and is characterized by a flat and fast profile with a total elevation gain of approximately 1,900 feet (560 m).

Terrain and Navigation

The terrain consists of 75% trail and 25% paved pathways, primarily on groomed paths and English riverside scenery. The course is marked with permanent National Trail marker posts displaying the acorn symbol, supplemented by pink branded ribbons and directional arrows. Runners are responsible for their own navigation and are encouraged to carry a map or use GPX data.

Requirements and Logistics

The event has a 30-hour time limit with intermediate cut-offs at aid stations. Participants must meet a qualification standard, having completed at least a 50-mile race within 15 hours during a specific qualifying window. Mandatory equipment is required, including:

  • A mobile phone and 1-litre water capacity
  • A waterproof jacket with sealed seams and a hood
  • Primary and backup light sources (minimum 100 lumens each)
  • Emergency base layer, hat, gloves, and a survival blanket

There are 13 aid stations providing hydration, gels, and various sweet and savoury snacks. Runners may utilize drop bags at mile 51, mile 71, and the finish line. Pacers are permitted to join runners on foot starting from the 51-mile mark at Henley.

Recognition

Finishers receive a commemorative buckle. Those completing the course in under 24 hours receive a specialized "One Day" buckle, while those finishing between 24 and 30 hours receive a finisher buckle. Trophies are awarded to the top three male and female finishers, along with age group awards for various veteran categories. Visit the organization's website for the most recent information.

Race information

100 mi
Thames Path 100
Visit the organization's website for the most recent information.
Trail runs nearby

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Experience the beauty of ancient woodland at the Epping Forest Wildwood Trail Series. Choose between a 10K or half marathon distance through scenic trails featuring natural forest terrain and muddy paths.

Outrun Archway offers recurring, in-person trail runs at Whittington Park in north London. Led by queer folks, the sessions prioritize a space for all paces and typically cover about 6k on unpaved surfaces.

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