Runs in Grantham
Find runs near me in Grantham for 2025/2026 - filter by date or location, display on a map or use the advanced search to find your perfect race.
Filter by month
Filter by place
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.

- Sat 4 Jul 2026
- £85-£90
Tough Mudder Midlands | 15K - Saturday
One of the most technically difficult Tough Mudder events where all obstacles are scaled-up, with surprises, extra muddy terrain, killer hills and scenic views of Belvoir Castle too.
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 15 km multi terrain running

- Sat 4 Jul 2026
- £65
Tough Mudder Midlands | 5K - Saturday
One of the most technically difficult Tough Mudder events where all obstacles are scaled-up, with surprises, extra muddy terrain, killer hills and scenic views of Belvoir Castle too.
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 5 km multi terrain running

- Sun 5 Jul 2026
- £80-£85
Tough Mudder Midlands | 15K - Sunday
One of the most technically difficult Tough Mudder events where all obstacles are scaled-up, with surprises, extra muddy terrain, killer hills and scenic views of Belvoir Castle too.
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 15 km multi terrain running

- Sun 5 Jul 2026
- £65
Tough Mudder Midlands | 5K - Sunday
One of the most technically difficult Tough Mudder events where all obstacles are scaled-up, with surprises, extra muddy terrain, killer hills and scenic views of Belvoir Castle too.
- Enter online
- Hilly
- Traffic free
- Fundraising optional
- Age 14 & over
- 5 km multi terrain running

- Sun 19 Jul 2026
- £52-£65
Belvoir Castle | Marathon
A jewel in the castle crown! Get active in the beautiful castle grounds in a marathon run then celebrate with fellow athletes, friends and family in the fantastic festival village afterwards.
- Chip timing
- Enter online
- Age 18 & over
- 42.2 km trail running

- Sun 19 Jul 2026
- £36-£45
Belvoir Castle | Half Marathon
A jewel in the castle crown! Get active in the beautiful castle grounds in a half marathon run then celebrate with fellow athletes, friends and family in the fantastic festival village afterwards.
- Chip timing
- Enter online
- Age 17 & over
- 21.1 km trail running

- Sun 19 Jul 2026
- £28-£35
Belvoir Castle | 10K Run
A jewel in the castle crown! Get active in the beautiful castle grounds in a 10K run! Then celebrate with fellow athletes, friends and family in the fantastic festival village afterwards.
- Chip timing
- Enter online
- Age 15 & over
- 10 km trail running
- Sat 4 Jul 2026
Tough Mudder Midlands | Tough Mudder Infinity - Saturday
- 8 hrs multi terrain running
- Sat 4 Jul 2026
Tough Mudder Midlands | Kids by Spartan 3K - Saturday
- 3 km multi terrain running
- Sat 4 Jul 2026
Tough Mudder Midlands | Kids by Spartan 1.5K - Saturday
- 1.5 km multi terrain running
- Sat 4 Jul 2026
Tough Mudder Midlands | Kids by Spartan 1K - Saturday
- 1 km multi terrain running
- Sun 5 Jul 2026
Tough Mudder Midlands | Kids by Spartan 3K - Sunday
- 3 km multi terrain running
- Sun 5 Jul 2026
Tough Mudder Midlands | Kids by Spartan 1.5K - Sunday
- 1.5 km multi terrain running
- Sun 5 Jul 2026
Tough Mudder Midlands | Kids by Spartan 1K - Sunday
- 1 km multi terrain running