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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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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.
  • 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

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