Limited time offer
Ends soon

Hertfordshire Half Marathon & 10k November 2027

Sun, Nov 7, 2027
Old Knebworth Ln, Knebworth
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From £32.55
LIMITED TIME OFFER
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9 +
route

About

Join us for the Hertfordshire Half Marathon & 10k on Sunday 7th November 2027!
Starting and finishing in front of the iconic Knebworth House, this scenic race takes you through the beautiful grounds of Knebworth Park before heading out onto peaceful country lanes. With a fully road-closed route, you can settle into your stride and enjoy uninterrupted running through the Hertfordshire countryside.
Whether you’re taking on your first 10k or Half Marathon or aiming for a new PB, this course offers the perfect balance of atmosphere and performance-friendly terrain. Expect a welcoming event village, supportive crowds, and a memorable finish back at Knebworth House.

10k, Half Marathon and RunThrough Foundation

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Sun, Nov 7, 2027

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Knebworth, United Kingdom

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Where and when

Location
Old Knebworth Ln, Knebworth, UK
Start times
10k: 9:30 AMHalf Marathon: 9:00 AM

Event summary

Here are the distances available for Hertfordshire Half Marathon & 10k November 2027
10k
10 km
£32.55
Half Marathon
13.1 mi
£37.80
RunThrough Foundation
£84

Route information

Both races feature scenic road routes through the picturesque Hertfordshire countryside. Whether you're tackling the Half Marathon or the 10K, you'll enjoy a welcoming race-day atmosphere, excellent support from marshals, and clear route markings. It's the perfect autumn challenge for seasoned runners aiming for a new PB or first-timers stepping up their distance.
Course Map
Half Marathon map here
10k map here

What's included

  • Unique themed medal
  • Free race photos
  • Chip-timed results
  • Post-race goodies

How to get there

Old Knebworth Ln, Knebworth, UK
Get full directions
PARKING/TRAVEL
There is only one road into the car park and event so please allow plenty of time. The entrance is just off the A1(M) at the junction 7 roundabout.
We recommend car sharing where possible to reduce any congestion. We advise arriving before 8:00am to allow plenty of time to get parked and walk up to the Event Village. (The car park will open at 6:30am).
Please note, the car park will shut 30 minutes pre event, so please arrive as early as possible.

Event day logistics

09:00 am - Half Marathon start
09: 30 am - 10k start
12:00 - Race End
MINIMUM AGES
Half Marathon - 17 years and above
10k - 15 years and above
BAGGAGE
We will have a secure marquee where you can leave your baggage. We recommend you bring as little baggage as possible. Your baggage tag is attached to your race number, you simply tear it off and attach to your bag. To collect, show your number to our staff and they will help you find your baggage.
TOILETS
There will be portable toilets in the event village and on course for the Half Marathon runners.
REFRESHMENTS
There will be sufficient water provided on the course, and there will also be water available at the finish along with your post race goodies and medal.
RESULTS
Results will be available here immediately after the race.
PICTURES
We will have an official photographer at the event, please check out our photos page after the race.
SOCIAL MEDIA
To stay up to date with everything from RunThrough, make sure to follow us on all our social media pages and if you would like to hear more from us via email make sure to sign up to our newsletter via the RunThrough.co.uk homepage.
Make sure to tag us in any pictures or videos that you post and the best ones will be featured on our pages!

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RunThrough encourage active nations through running. They are the world's fastest growing and UK's largest running community and running event organiser with over 315 events and 320,000+ entrants for their events every year.
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Price rises soon

33 Broadwick St, London W1F 0DQ

Reg number 10083277

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