Tough Mudder in Belvoir Castle, Grantham, Lincolnshire, UK, United Kingdom. 4 events over 2 days, Jun 26–27, 2027.
The World's Toughest Mudder returns to Belvoir Castle in Lincolnshire, UK, for a 24-hour obstacle course challenge across muddy trails, water hazards and open estate terrain. Signature obstacles like Everest and Arctic Enema punctuate a lap format that rewards pacing, kit management and teamwork over raw speed. It remains the most extreme event on the Tough Mudder calendar, built for athletes who want to find out how long they can keep going.
The organizer has not published start times yet. Waves fill up.
Register on uk.toughmudder.com
Race village, nearest airport and how to get there.
Belvoir Castle, Grantham, Lincolnshire, UK
Airports within 200 km of the venue. Each one lists the other races you can reach from it.
Actual conditions on these dates over the past 5 years.
| Year | High | Low | Wind | Rain |
|---|---|---|---|---|
| 2026 | 33°C | 20°C | 21 km/h | 1.0 mm |
| 2025 | 23°C | 16°C | 30 km/h | — |
| 2024 | 25°C | 13°C | 15 km/h | — |
| 2023 | 20°C | 13°C | 26 km/h | — |
| 2022 | 20°C | 11°C | 34 km/h | — |
Within 500 km and four weeks of this one, if you're making a trip of it.
Lincolnshire, UK, United Kingdom
Grantham, United Kingdom
Vijfhuizen, Netherlands
Wijchen, Netherlands
Queensferry , United Kingdom
South Queensferry, UK, United Kingdom