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Marathons in Grantham
Find marathons 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.
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- Sun 19 Jul 2026
- £52-£65
- Sun 19 Jul 2026
- £52-£65
Grantham, Leicestershire, UK
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