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Trail Half marathons in October 2025

Find trail half marathons near me in October 2025 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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The toughest trail run in the South East is back by popular demand. Likened to fell running, the 21K route includes steep, rocky ascent on lesser-known trails through the luscious Hurtwood Forest.
  • Sat 11 Oct
  • £35
Guildford, Surrey, UK

The Hurt | 21km

The toughest trail run in the South East is back by popular demand. Likened to fell running, the 21K route includes steep, rocky ascent on lesser-known trails through the luscious Hurtwood Forest.

  • Chip timing
  • Enter online
  • Hilly
  • Age 17 & over
  • 21 km trail running + 650 m ascent
Welcome to a 6-hour timed running event where you can run a half marathon at your own pace on an out-and-back route, with fuel stations each lap, and a pick-and-mix medal and goody bag at the finish.
  • Sat 11 Oct
  • £20-£22
Hull, East Yorkshire, UK

Rumble In The Jumble I | Half Marathon

Welcome to a 6-hour timed running event where you can run a half marathon at your own pace on an out-and-back route, with fuel stations each lap, and a pick-and-mix medal and goody bag at the finish.

  • Enter online
  • Undulating
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 1038 ft ascent
Experience the wild side of Scotland with an epic half marathon trail race in the heart of the stunning Loch Lomond & the Trossachs National Park on a waymarked route with finisher's medal.
  • Sat 11 Oct
  • £38
Stirling, UK

Aberfoyle Festival of Trail Running | Half Marathon

Experience the wild side of Scotland with an epic half marathon trail race in the heart of the stunning Loch Lomond & the Trossachs National Park on a waymarked route with finisher's medal.

  • Chip timing
  • Enter online
  • Hilly
  • Age 17 & over
  • 21 km trail running + 500 m ascent
The trail goes through the grounds of the 2,000 acre Holdenby Estate and on surrounding farmland with fantastic views of the country house, finishing through the iconic arches that adorn the grounds.
  • Sun 12 Oct
  • £35
Northampton, Northamptonshire, UK

ATW Holdenby House Half Marathon Trail Run

The trail goes through the grounds of the 2,000 acre Holdenby Estate and on surrounding farmland with fantastic views of the country house, finishing through the iconic arches that adorn the grounds.

  • Enter online
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 1260 ft ascent
Get involved in this spooky half marathon! The Care Bears were a staple of anyone who grew up in the 80s and even if you didn't like them, they make a super cute (slightly scary) medal to earn.
  • Sun 12 Oct
  • £17-£29
Houghton le Spring, Tyne and Wear, UK

Scare Bear Run | North | Half Marathon

Get involved in this spooky half marathon! The Care Bears were a staple of anyone who grew up in the 80s and even if you didn't like them, they make a super cute (slightly scary) medal to earn.

  • Enter online
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running
An unforgettable race between the pines and beneath the majestic canopy of Bedgebury Forest - a trail race that will ignite your racer's heart.
  • Sun 19 Oct
  • £31
Goudhurst, Kent, UK

Bedgebury Forest Half Marathon

An unforgettable race between the pines and beneath the majestic canopy of Bedgebury Forest - a trail race that will ignite your racer's heart.

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running
A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
  • Sat 25 Oct
  • £30-£32
Leeds, West Yorkshire, UK

Hubble Bubble & Ghostly 1 Mile | Day 1 | Half Marathon

A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 144 ft ascent
Get involved in this spooky half marathon! The Care Bears were a staple of anyone who grew up in the 80s and even if you didn't like them, they make a super cute (slightly scary) medal to earn.
  • Sat 25 Oct
  • £23-£35
Staines, Surrey, UK

Scare Bear Run | Half Marathon

Get involved in this spooky half marathon! The Care Bears were a staple of anyone who grew up in the 80s and even if you didn't like them, they make a super cute (slightly scary) medal to earn.

  • Enter online
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
Entries closed
Take to one of the most iconic trails in the Peak District for stunning and traffic-free racing joy on a former Midland railway line taking you through four tunnels and across the spectacular viaduct!
  • Sat 25 Oct
  • £31
Bakewell, Derbyshire, UK

Monsal Trail October Half Marathon | Saturday

Take to one of the most iconic trails in the Peak District for stunning and traffic-free racing joy on a former Midland railway line taking you through four tunnels and across the spectacular viaduct!

  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 2181 ft ascent
This Halloween, run as far as you can during the 4 or 6-hour event through Ferry Meadows, one of the largest country parks in the region, on a multi-terrain loop. Run, rest, then head out for more.
  • Sun 26 Oct
  • £31-£36
Peterborough, Cambridgeshire, UK

Pumpkin Plod

This Halloween, run as far as you can during the 4 or 6-hour event through Ferry Meadows, one of the largest country parks in the region, on a multi-terrain loop. Run, rest, then head out for more.

  • Newcomers
  • Dogs allowed
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.
  • Sun 26 Oct
  • £30-£32
Leeds, West Yorkshire, UK

Hubble Bubble | Day 2 | Half Marathon

A Halloween-themed running event you won't want to miss, bringing together runners of all abilities to share memories in what they love to do. Reach the finish to enjoy tasty Halloween treats.

  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 144 ft ascent
Take to one of the most iconic trails in the Peak District for stunning and traffic-free racing joy on a former Midland railway line taking you through four tunnels and across the spectacular viaduct!
  • Sun 26 Oct
  • £31
Bakewell, Derbyshire, UK

Monsal Trail October Half Marathon | Sunday

Take to one of the most iconic trails in the Peak District for stunning and traffic-free racing joy on a former Midland railway line taking you through four tunnels and across the spectacular viaduct!

  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 2181 ft ascent
  • Sat 11 Oct
Tring, Hertfordshire, UK

Run the Wild Half Marathon - Autumn Edition

  • 21.1 km trail running + 300 m ascent
  • Sat 11 Oct
Saxmundham, Suffolk, UK

EnduranceLife - Suffolk | Half Marathon

  • 13.5 miles trail running + 525 ft ascent
  • Sat 11 Oct
Dronfield, Derbyshire, UK

The Drone Valley Trail Half Marathon

  • 13.1 miles trail running + 1700 ft ascent
  • Sun 12 Oct
Reims, France

Reims Champagne Run | The Semi of Kings - 21.1K

  • 21.1 km trail running
  • Sun 12 Oct
Woodbridge, Suffolk, UK

Aliens V Trail Runners (Daylight Marathon & Half) | Half Marathon

  • 13.1 miles trail running
  • Sun 12 Oct
Richmond, UK

The Richmond Autumn Riverside 10K and Half Marathon Run | Half Marathon

  • 13.1 miles multi terrain running
  • Sun 12 Oct
Bräunlingen, Germany

Schwarzwald Marathon | Half Marathon

  • 21.1 km trail running
  • Sun 12 Oct
South Queensferry, Edinburgh, UK

Dalmeny Trail Half Marathon

  • 13.1 miles trail running
  • Sat 18 Oct
Skipton, North Yorkshire, UK

Dales Dazzler | Half Marathon

  • 14.4 miles trail running + 1718 ft ascent
  • Sat 18 Oct
Port Talbot, West Glamorgan, UK

Afan forest Half Marathon and 10K | Half Marathon

  • 13.1 miles trail running
  • Sat 18 Oct
Rådal, Norway

Bergen Marathon | Half Marathon

  • 21.1 km trail running
  • Sun 19 Oct
Richmond, UK

Richmond Park October 5K, 10K and Half Marathon | Half Marathon

  • 13.1 miles multi terrain running
  • Sun 19 Oct
Brandon, Suffolk, UK

High Lodge Half Marathon - Autumn

  • 13.1 miles trail running

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