Runs in Hertfordshire

• Sun 11 Jan
• £27-£29

ATW Hatfield 10K

Chase your next PB at the ATW Hatfield 10K — a fast, scenic route on the Alban Way with free photos, medals, and unbeatable race-day energy with exciting perks!

• Beginner-friendly
• Chip timing
• Enter online
• Flat
• PB
• Traffic free
• Event village
• Age 15 & over

• 10 km road running + 39 ft ascent

• Sun 1 Feb
• £12-£36

ATW Watford Half Marathon, 10K & 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
• Beginner-friendly
• Entertainment
• Music
• Event village
• Park
• Sustainability policy
• Public transport links
• All ages

• Fun run
• Half marathon
• 10K run

• Sun 15 Feb
• £28-£30

ATW Love Welwyn Garden City 10K

11th 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
• Beginner-friendly
• Music
• Enter online
• Event village
• Sustainability policy
• Age 15 & over

• 10 km road running + 246 ft ascent

• Sat 21 Mar
• £27-£38

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.

• Beginner-friendly
• Dogs allowed at venue
• Event village
• Age 18 & over

• Multi-terrain run 2

• Sun 22 Mar
• £26-£36

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
• Beginner-friendly
• Event village
• Park
• Free venue entry
• Sustainability policy
• Public transport links
• Age 15 & over

• 10K run
• Half marathon

• Fri 3 Apr
• £28-£30

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
• Beginner-friendly
• Chip timing
• Enter online
• Flat
• PB
• Traffic free
• Event village
• Park
• Sustainability policy
• Age 15 & over

• 10 km road running + 108 ft ascent

• Mon 6 Apr
• FREE-£34

ATW Stevenage Spring Half Marathon & 10K

From the fantastic Ridlins Stadium athletics track, wind your way around superb traffic-free tarmac routes and enjoy the beautiful Fairlands Valley Park the return to a vibrant event village!

• Families
• Beginner-friendly
• Music
• Event village
• Urban
• Park
• All ages

• Fun run
• 10K run
• Half marathon

• Sat 23 - Sun 24 May
• £33-£165

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.

• Beginner-friendly
• Event village
• Rural
• Age 18 & over

• 5K run
• 10K run
• Half marathon
• Marathon
• Ultra run 2
• + 2 more races

• Sun 31 May
• £27-£38

Circuit Du Sore Legs

In its sixth year! Come take on the challenge of the track at Wodson Park. Do you have it in you to complete your distance on a 400-metre athletics track?

• Families
• Beginner-friendly
• Event village
• Park
• Age 14 & over

• 5K run
• 10K run
• Half marathon
• Marathon
• 50K ultra run
• + 1 more race

• Sun 14 Jun
• £11-£38

ATW St Albans Half Marathon, 10K, 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
• Venue accessible
• Recycling
• Beginner-friendly
• Fancy dress
• Event village
• Park
• Sustainability policy
• All ages

• Fun run
• 5K run
• Half marathon
• Challenge walk
• 10K run

• Sat 27 Jun
• £27-£38

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.

• Beginner-friendly
• Dogs allowed at venue
• Event village
• Rural
• Age 14 & over

• Multi-terrain run 2
• 5K run
• 10K run
• Trail run
• Half marathon 2

• Sun 19 Jul
• £26-£28

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
• Beginner-friendly
• Entertainment
• Chip timing
• Enter online
• Flat
• PB
• Traffic free
• Event village
• Park
• Age 15 & over

• 10 km road running + 108 ft ascent

• Sun 4 Oct
• FREE-£35
• Early bird

ATW Welwyn Half Marathon & Fun Run

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.

Early bird on now

• Families
• Recycling
• Beginner-friendly
• Event village
• Park
• Sustainability policy
• All ages

• Fun run
• Half marathon
• 10K run

• Sun 25 Oct
• £35

Stort30

A stunningly pretty 30-mile out-and-back ultra on the border of Hertfordshire and Essex along the River Stort and Lee navigation. A great first foray into ultra running or a fast competitive race.

• Beginner-friendly
• Chip timing
• Enter online
• Flat
• Event village
• Rural
• Age 18 & over

• 30 miles trail running + 188 ft ascent

• Sun 29 Nov
• £23-£25

ATW Hatfield 5

Join ATW Events for the 12th Year of the Hatfield 5, now featuring the Herts County Championships, this is the region's fastest 5 miler (3rd fastest time in the UK 2022).

• Recycling
• Beginner-friendly
• Event village
• Sustainability policy
• Age 15 & over

• Road run