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Half marathons in Northamptonshire in March 2026

Find half marathons in Northamptonshire in March 2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Come to the historic market town of Oundle for the return of the Oundle 20 Mile! Ideal training for spring marathons on a scenic course offering genuine PB potential.
  • Sun 1 Mar 2026
  • £33
Oundle, Northamptonshire, UK

Oundle 20 Mile

Come to the historic market town of Oundle for the return of the Oundle 20 Mile! Ideal training for spring marathons on a scenic course offering genuine PB potential.

  • Enter online
  • Undulating
  • PB
  • Age 18 & over
  • 20 miles road running + 633 ft ascent
Welcome to a 6-hour timed running event where you can run a 5K all the way up to an ultra marathon on an out-and-back route within the time limit, with fuel stations, medal and goody bag.
  • Sun 22 Mar 2026
  • £32-£34
Northampton, Northamptonshire, UK

Spring Run | Half Marathon

Welcome to a 6-hour timed running event where you can run a 5K all the way up to an ultra marathon on an out-and-back route within the time limit, with fuel stations, medal and goody bag.

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running
  • Sun 1 Mar 2026
Northampton, Northamptonshire, UK

Pitsford Water Trail Races | Half Marathon

  • 13.1 miles trail running + 607 ft ascent

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