The MTC Thames Challenge

Kemble, United Kingdom • 6-9 Aug 2026

The MTC Thames Challenge (6-9 August 2026)

The MTC Thames Challenge is a four-day, multi-stage endurance race along the Thames Path covering a total of 184 miles from the river source in the Cotswolds to the Thames Barrier. The event is organised by Ultra Running Ltd and carries 6 UTMB points. The challenge is split into four stages:

  • Day 1 - The Cotswold Ultra: 57 miles from the Thames source to Travelodge Oxford
  • Day 2 - The Oxford Ultra: 49 miles from Oxford to Henley-on-Thames
  • Day 3 - The Windsor Ultra: 47 miles from Henley-on-Thames to Travelodge Kingston
  • Day 4 - The Richmond Ultra: 33 miles finishing at the Thames Gate

Format, kit and rules

Accommodation for competitors is included at the end of Days 1 to 3 and is provided on a shared basis, three people per room. The organiser pays for a main evening meal at the listed hotels; starters, drinks and desserts are at the competitor’s expense. A support vehicle will transfer one cabin-sized kit bag per competitor; bags must be clearly named and taken down to the morning start location by each competitor.

Competitors must be self-sufficient for route navigation and transport to and from the event. Mandatory kit includes a backpack, head torch with spare batteries, Ordnance Survey map or downloadable maps, compass or GPS device, whistle, mobile phone, basic first-aid kit and emergency food. Entrants must be at least 20 years old on the start day. The organisers require an average minimum pace of 4.0 miles per hour including stops; falling below this may result in removal from the race. Entry fees listed include Solo £595 and Relay member £425; a defer option is available for a fee. Visit the organization's website for the most recent information.

Race information

184 mi
The Thames Challenge
Visit the organization's website for the most recent information.
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