Hertfordshire Half Marathon & 10k November 2025
Join us for the return of the Hertfordshire Half Marathon & 10k on Sunday 2nd November 2025!
This popular ROAD CLOSED half marathon starts and finishes in front of the iconic Knebworth House with the course taking participants around the beautiful surrounding rural roads.
Start Times:
Half Marathon – 9:00am
10k – 9:30am
Brand New Medal To Be Revealed! (Previous design pictured)
Knebworth House is a grade II listed house set in acres of beautiful gardens and parkland. Knebworth House has welcomed many music artists for major open air concerts, including Robbie Williams, Oasis, Led Zepellin and Red Hot Chilli Peppers. The grounds are home to popular tourist attractions including an adventure playground and dinosaur trail.
Included in the entry is:
a unique themed medal,
chip timed results,
free official race photos,
refreshments
and much more!
We have been extensively researching into what runners consider important, and sustainability is fast becoming the most important area. Click HERE to see what RunThrough is doing for sustainability.
T-Shirts at events have been a hot topic mainly around them not being a high enough quality to wear on a regular basis. So we have decided to tackle this by offering a RunThrough Kit Technical T-Shirt with a retail value of £22 for £12 with the addition of the event logo printed on the chest.
We can do this with our partner RT Kit as part of a strategic decision to not only raise awareness about the quality of the product but also to counteract the increasing costs incurred in event production in the current climate.
FROM THE SAME TEAM THAT BROUGHT YOU
ONCE YOU ENTER YOU WILL RECEIVE A CONFIRMATION EMAIL. MORE INFORMATION ABOUT YOUR RACE NUMBER WILL BE SENT CLOSER TO THE EVENT – ENJOY!
After every race you’ll be able to grab a delicious pack of LOVE CORN.
If that’s not motivation to cross that finishing line, we don’t know what is in life and in snacks, it’s all about finding love in the little things.
LOVE CORN is delicious crunchy corn that makes lunchtimes more exciting, meetings go quicker and life a little bit better, one kernel at a time.
Whole corn kernels simply roasted off the cob and seasoned with the best ingredients to make the ultimate feel good snack.
50% less fat than crisps, high fibre, low sugar, gluten free and vegan.
What more could you want?
Give us a crunch and get 20% off using the code RUNTHROUGH20 – just visit HERE
LOVE, CORN
P.s we’re crunchy, we’re delicious!
Nov 02, 2025
Nov 02, 2025
Old Knebworth Ln, Knebworth, SG1 2AX
SG1 2AX
0
0
36% event capacity filled
Entry Limit: 3000
Hertfordshire Half Marathon & 10k November 2025
Nov 02, 2025
£30.00 – £170.00
36% event capacity filled
Entry Limit: 3000
Join us for the return of the Hertfordshire Half Marathon & 10k on Sunday 2nd November 2025!
This popular ROAD CLOSED half marathon starts and finishes in front of the iconic Knebworth House with the course taking participants around the beautiful surrounding rural roads.
Start Times:
Half Marathon – 9:00am
10k – 9:30am
Brand New Medal To Be Revealed! (Previous design pictured)
Knebworth House is a grade II listed house set in acres of beautiful gardens and parkland. Knebworth House has welcomed many music artists for major open air concerts, including Robbie Williams, Oasis, Led Zepellin and Red Hot Chilli Peppers. The grounds are home to popular tourist attractions including an adventure playground and dinosaur trail.
Included in the entry is:
a unique themed medal,
chip timed results,
free official race photos,
refreshments
and much more!
We have been extensively researching into what runners consider important, and sustainability is fast becoming the most important area. Click HERE to see what RunThrough is doing for sustainability.
T-Shirts at events have been a hot topic mainly around them not being a high enough quality to wear on a regular basis. So we have decided to tackle this by offering a RunThrough Kit Technical T-Shirt with a retail value of £22 for £12 with the addition of the event logo printed on the chest.
We can do this with our partner RT Kit as part of a strategic decision to not only raise awareness about the quality of the product but also to counteract the increasing costs incurred in event production in the current climate.
FROM THE SAME TEAM THAT BROUGHT YOU
ONCE YOU ENTER YOU WILL RECEIVE A CONFIRMATION EMAIL. MORE INFORMATION ABOUT YOUR RACE NUMBER WILL BE SENT CLOSER TO THE EVENT – ENJOY!
After every race you’ll be able to grab a delicious pack of LOVE CORN.
If that’s not motivation to cross that finishing line, we don’t know what is in life and in snacks, it’s all about finding love in the little things.
LOVE CORN is delicious crunchy corn that makes lunchtimes more exciting, meetings go quicker and life a little bit better, one kernel at a time.
Whole corn kernels simply roasted off the cob and seasoned with the best ingredients to make the ultimate feel good snack.
50% less fat than crisps, high fibre, low sugar, gluten free and vegan.
What more could you want?
Give us a crunch and get 20% off using the code RUNTHROUGH20 – just visit HERE
LOVE, CORN
P.s we’re crunchy, we’re delicious!
RUNTHROUGH EVENT PARTNERS
Start Times:
Half Marathon – 9:00am
10k – 9:30am
All race packs will be posted out to entrants to arrive with each runner in the week of the event.
The Course
There will be mile markers, arrows and marshals along the course to keep you on track. There will be three water stations at miles 3.5, 7.5 & 10 as well as at the finish.
