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Obstacle races in May 2026

Find obstacle races in May 2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.

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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.
  • Sat 9 May 2026
  • £85-£90
Henley-on-Thames, Buckinghamshire, UK

Tough Mudder London West | 15K - Saturday

Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.

  • Enter online
  • Hilly
  • Traffic free
  • Age 14 & over
  • 15 km multi terrain running
Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.
  • Sat 9 May 2026
  • £65
Henley-on-Thames, Buckinghamshire, UK

Tough Mudder London West | 5K - Saturday

Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.

  • Enter online
  • Hilly
  • Traffic free
  • Age 14 & over
  • 5 km multi terrain running
Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.
  • Sun 10 May 2026
  • £80-£85
Henley-on-Thames, Buckinghamshire, UK

Tough Mudder London West | 15K - Sunday

Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.

  • Enter online
  • Hilly
  • Traffic free
  • Fundraising optional
  • Age 14 & over
  • 15 km multi terrain running
Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.
  • Sun 10 May 2026
  • £65
Henley-on-Thames, Buckinghamshire, UK

Tough Mudder London West | 5K - Sunday

Be one of 15,000 Mudders to prove you're tough enough to conquer the most technically difficult obstacle course of the series. Expect hills, forest trails, muddy ditches, hills and a finisher beer.

  • Enter online
  • Hilly
  • Traffic free
  • Fundraising optional
  • Age 14 & over
  • 5 km multi terrain running
  • Sat 9 May 2026
Henley-on-Thames, Buckinghamshire, UK

Tough Mudder London West | Tough Mudder Infinity

  • 8 hrs multi terrain running
  • Sat 16 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Beast 21K

  • 21 km multi terrain running
  • Sat 16 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Kids Race 3K - Saturday

  • 3 km multi terrain running
  • Sat 16 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Kids Race 1.5K - Saturday

  • 1.5 km multi terrain running
  • Sat 16 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Kids Race 1K - Saturday

  • 1 km multi terrain running
  • Sun 17 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Super 10K

  • 10 km multi terrain running
  • Sun 17 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Kids Race 3K - Sunday

  • 3 km multi terrain running
  • Sun 17 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Kids Race 1.5K - Sunday

  • 1.5 km multi terrain running
  • Sun 17 May 2026
Henley-on-Thames, Buckinghamshire, UK

London West Spartan Trifecta Weekend | Kids Race 1K - Sunday

  • 1 km multi terrain running

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