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Runs in Hertfordshire in September 2025

Find runs near me in Hertfordshire in September 2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
  • Sat 28 Sep
  • £20.50-£24.50
  • Sat 28 Sep
  • £20.50-£24.50
Buntingford, Hertfordshire, UK

Baa-Baa Bimble

Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.

  • Newcomers
  • Dogs allowed
  • Event village
  • Age 18 & over
  • Multi-terrain run 2
The popular Welwyn Half Marathon starts and finishes on the impressive 400m athletics track at Gosling Sports Park with an ideal, traffic-free, disused railway line in between.
  • Sun 29 Sep
  • FREE-£36
  • Sun 29 Sep
  • FREE-£36
Welwyn Garden City, Hertfordshire, UK

ATW Welwyn Half Marathon

The popular Welwyn Half Marathon starts and finishes on the impressive 400m athletics track at Gosling Sports Park with an ideal, traffic-free, disused railway line in between.

  • Families
  • Recycling
  • Newcomers
  • Event village
  • Park
  • Sustainability policy
  • All ages
  • Fun run
  • Half marathon
Active Training World's popular Family Halloween Trail event returns!
  • Thu 31 Oct
  • £7
  • Thu 31 Oct
  • £7
Northwood, Hertfordshire, UK

ATW Family Halloween Trail

Active Training World's popular Family Halloween Trail event returns!

  • Families
  • Newcomers
  • Enter online
  • Fancy dress
  • Event village
  • All ages
  • 2 km trail running
Welcome to the Fireworks Festival of Running! Come and tackle the track to see how far you can go in 6 hours, whether you reach 5K or an ultra, over the 400m circuit.
  • Sat 2 Nov
  • £23-£35
  • Sat 2 Nov
  • £23-£35
Ware, Hertfordshire, UK

Catherine Wheel Canter

Welcome to the Fireworks Festival of Running! Come and tackle the track to see how far you can go in 6 hours, whether you reach 5K or an ultra, over the 400m circuit.

  • Newcomers
  • Music
  • Event village
  • Park
  • Age 16 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • 50K ultra run
  • + 1 more race
Welcome to the Fireworks Festival of Running! Come and tackle the track to see how far you can go in 6 hours, whether you reach 5K or an ultra, over the 400m circuit.
  • Sat 2 Nov
  • £23-£35
  • Sat 2 Nov
  • £23-£35
Ware, Hertfordshire, UK

Guy Fawkes Gallop

Welcome to the Fireworks Festival of Running! Come and tackle the track to see how far you can go in 6 hours, whether you reach 5K or an ultra, over the 400m circuit.

  • Newcomers
  • Music
  • Event village
  • Park
  • Age 16 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • 50K ultra run
  • + 1 more race
Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for 12 hours and see how far you can go!
  • Sat 2 Nov
  • £53-£55
  • Sat 2 Nov
  • £53-£55
Ware, Hertfordshire, UK

Rocket Around the Running Track

Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for 12 hours and see how far you can go!

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Event village
  • Park
  • Age 18 & over
  • 12 hrs
Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for the festival's ultimate goal of 50 miles in 12 hours! Have you got what it takes?
  • Sat 2 Nov
  • £53-£55
  • Sat 2 Nov
  • £53-£55
Ware, Hertfordshire, UK

Fireworks 50

Welcome to the Fireworks Festival of Running! Come and tackle the 400 metre athletics track for the festival's ultimate goal of 50 miles in 12 hours! Have you got what it takes?

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Event village
  • Park
  • Age 18 & over
  • 50 miles
Get involved in this 10th anniversary event of Hatfield 5! Featuring the Herts Seniors County Champsionships. It's the fastest 5 miler around.
  • Sun 24 Nov
  • £21-£23
  • Sun 24 Nov
  • £21-£23
Hatfield, Hertfordshire, UK

ATW Hatfield 5

Get involved in this 10th anniversary event of Hatfield 5! Featuring the Herts Seniors County Champsionships. It's the fastest 5 miler around.

  • Recycling
  • Newcomers
  • Enter online
  • Flat
  • PB
  • Event village
  • Sustainability policy
  • Age 15 & over
  • 5 miles road running
Starting and finishing on the fantastic Ridlins Stadium athletics track, the route winds its way around the superb traffic-free tarmac routes that cover the town of Stevenage.
  • Sun 8 Dec
  • FREE-£34
  • Sun 8 Dec
  • FREE-£34
Stevenage, Hertfordshire, UK

ATW Stevenage Winter Half Marathon & 10K

Starting and finishing on the fantastic Ridlins Stadium athletics track, the route winds its way around the superb traffic-free tarmac routes that cover the town of Stevenage.

  • Families
  • Recycling
  • Newcomers
  • Music
  • Event village
  • Sustainability policy
  • All ages
  • Fun run
  • 10K run
  • Half marathon
Finish the year with a brand new PB and celebrate the arrival of the new year with a glass of fizz and a healthy twist at this New Year's Eve running extravaganza!
  • Tue 31 Dec
  • £27-£29
  • Tue 31 Dec
  • £27-£29
St Albans, Hertfordshire, UK

ATW St Albans New Years Eve 10K

Finish the year with a brand new PB and celebrate the arrival of the new year with a glass of fizz and a healthy twist at this New Year's Eve running extravaganza!

  • Families
  • Recycling
  • Newcomers
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • 10 km road running
This popular event has a strong history within the running community and has been taking place for over 40 years! Join a day of running, community spirit and exciting experiences.
  • Sun 2 Feb 2025
  • £10-£36
  • Sun 2 Feb 2025
  • £10-£36
Watford, Hertfordshire, UK

ATW Watford Half Marathon & Fun Run

This popular event has a strong history within the running community and has been taking place for over 40 years! Join a day of running, community spirit and exciting experiences.

  • Families
  • Recycling
  • Newcomers
  • Entertainment
  • Music
  • Event village
  • Park
  • Sustainability policy
  • Public transport links
  • All ages
  • Fun run
  • Half marathon
10th anniversary! Welcome to the Love Welwyn Garden City 10K — historically held around Valentine's Day this is the event that encourages you to fall in love with running.
  • Sun 16 Feb 2025
  • £27-£29
  • Sun 16 Feb 2025
  • £27-£29
Welwyn Garden City, Hertfordshire, UK

ATW Love Welwyn Garden City 10K

10th anniversary! Welcome to the Love Welwyn Garden City 10K — historically held around Valentine's Day this is the event that encourages you to fall in love with running.

  • Recycling
  • Newcomers
  • Music
  • Enter online
  • Event village
  • Sustainability policy
  • Age 15 & over
  • 10 km road running
Marathon, Half and 10K! Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
  • Sat 22 Mar 2025
  • £25-£37.50
  • Sat 22 Mar 2025
  • £25-£37.50
Buntingford, Hertfordshire, UK

Moo-rathon, Calf and Hen K

Marathon, Half and 10K! Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.

  • Newcomers
  • Dogs allowed
  • Event village
  • Age 18 & over
  • Multi-terrain run 2
Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.
  • Sun 23 Mar 2025
  • £27-£37
  • Sun 23 Mar 2025
  • £27-£37
Waltham Cross, Hertfordshire, UK

ATW Run Fest at Lee Valley

Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.

  • Recycling
  • Newcomers
  • Event village
  • Park
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Age 15 & over
  • 10K run
  • Half marathon
A flat, fast and chip timed event - it's a sure-fire guarantee to give you the best chance of a PB in the 10K.
  • Fri 18 Apr 2025
  • £27-£29
  • Fri 18 Apr 2025
  • £27-£29
St Albans, Hertfordshire, UK

ATW St Albans Easter 10K

A flat, fast and chip timed event - it's a sure-fire guarantee to give you the best chance of a PB in the 10K.

  • Families
  • Recycling
  • Newcomers
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Event village
  • Park
  • Sustainability policy
  • Age 15 & over
  • 10 km road running
Can you survive Farmmageddon? You have 32 hours to complete 100 miles over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm. 24-hour or shorter distance options too.
  • Sat 24 - Sun 25 May 2025
  • £34-£165
  • Sat 24 - Sun 25 May 2025
  • £34-£165
Buntingford, Hertfordshire, UK

Farmmageddon

Can you survive Farmmageddon? You have 32 hours to complete 100 miles over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm. 24-hour or shorter distance options too.

  • Newcomers
  • Event village
  • Rural
  • Age 18 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run 2
  • + 1 more race
A community-focused event, ATW St Albans Half Marathon aims to raise money for local charities and organisations as well as put on a great day out for all the family, delivered by runners for runners.
  • Sun 8 Jun 2025
  • £10-£39
  • Sun 8 Jun 2025
  • £10-£39
St Albans, Hertfordshire, UK

ATW St Albans Half Marathon, 5K & Fun Run

A community-focused event, ATW St Albans Half Marathon aims to raise money for local charities and organisations as well as put on a great day out for all the family, delivered by runners for runners.

  • Families
  • Wheelchair users
  • Recycling
  • Newcomers
  • Fancy dress
  • Event village
  • Park
  • Sustainability policy
  • All ages
  • Fun run
  • 5K run
  • Half marathon
  • Challenge walk
Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
  • Sat 28 Jun 2025
  • £23-£37.50
  • Sat 28 Jun 2025
  • £23-£37.50
Buntingford, Hertfordshire, UK

Cock-a-doodle Dawdle

Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.

  • Newcomers
  • Dogs allowed
  • Event village
  • Age 18 & over
  • Multi-terrain run 2
ATW brings you the St Albans Summer 10K with a twist! Flat, fast and chip-timed with pacers to help you achieve a PB, plus buzzing event village for all the family with music, play zone and ice cream.
  • Sun 20 Jul 2025
  • £27-£29
  • Sun 20 Jul 2025
  • £27-£29
St Albans, Hertfordshire, UK

ATW St Albans Summer 10K

ATW brings you the St Albans Summer 10K with a twist! Flat, fast and chip-timed with pacers to help you achieve a PB, plus buzzing event village for all the family with music, play zone and ice cream.

  • Families
  • Newcomers
  • Entertainment
  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Event village
  • Park
  • Age 15 & over
  • 10 km road running
  • Sat 21 Sep
Tring, Hertfordshire, UK

Humanity Direct Tring Ultra

  • Ultra run 2
  • Sun 22 Sep
Northwood, Hertfordshire, UK

Moor Park 10K & Fun Runs

  • Fun run 4
  • Short walk
  • 10K run
  • Sun 29 Sep
Hitchin, Hertfordshire, UK

Hitchin Town Centre 5K

  • 5 km road running
  • Sat 5 Oct
Letchworth Garden City, Hertfordshire, UK

First Saturday of the Month 5K

  • 5 km road running
  • Sun 6 Oct
Abbots Langley, Hertfordshire, UK

Abbots Langley Ten Tough

  • Fun run 2
  • 5K run
  • 10K run
  • Sun 6 Oct
St Albans, Hertfordshire, UK

The Herts 10K, 5K and Fun Run

  • Fun run
  • 5K run
  • 10K run

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