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Race details

Next edition - 8th June 2025

A trail 5K & 10K race at the delightful Tewinbury Farm & Hotel just north of Welwyn in Hertfordshire.

Our enjoyable trail routes follow a selection of brilliant trails around the estate and surrounding countryside.

The routes are undulating with a mixture of terrain to tackle, including single track forest paths and open tracks where you can accelerate off the hard dirt trails.

Enter event

Tewinbury 10K

£22/£20 (UKA Affiliated)

Tewinbury 5K

£18/£16 (UKA Affiliated)

There's 15 weeks until this race, enter now whilst there's plenty of time to train!

Runners Guide
A downloadable PDF with all key race information.
 

Key Information

Race info
Date
Sunday, 8th June 2025
Start Time
11:00
Event base
Tewinbury (North Entrance), Churchfield Road, AL6 OJW
Distance (Elevation)
5K (100m), 10km (180m)
Max Runners
400
Navigation
Fully marked & marshalled
Terrain
Trail
Public Transport
Welwyn North - 15 min walk
Price - 5K
£18/16 (UKA affiliated)
Price - 10K
£22/20 (UKA affiliated)
Minimum Age
5K - 12, 10K - 16
Dogs permitted
No
License
TRA Permit No. TBC.
Race held under UKA rules.

Image Highlights

Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K Image highlights from the Tewinbury Trail 5K & 10K

Route Map

Event Downloads

Last updated - Jan 2025

Runners Guide
A downloadable PDF with all key race information.
GPX File
A raw GPX track of the route.
Route via Ordnance Survey maps
Interactive route via Google Maps

Route Description

Both our routes are entirely on trails surrounding the hotel grounds.

The terrain is undulating and has a fun rhythm between the ups and downs.

Underfoot conditions will be good with the route providing a nice mix of dirt, grass and woodland trails.

Navigation is simple and will be aided by marshals and our orange signage.

Aid stations
Water, gels, jellybabies
5.3KM (10K race)

Previous editions

Tewinbury 10K - April 2024
Tewinbury 10K - August 2023
Tewinbury 10K - April 2023

Keep scrolling for more event info

Race Navigation
Race checkpoints

Aid stations

There will be a water and nutrition stop situated at approximately 5.3km to the route. Cups will be provided.

Event base

Event base

The event is proudly hosted at Tewinbury, a countryside hotel, restuarant and event venue in Hertfordshire.

The estate has a lot to offer and we encourage you to explore the grounds during your visit. For more information please visit the Tewinbury website.

Tewinbury will be providing pre and post-race refreshments at the finish line.

View on Google Maps

Entry details

Registration is £22 (or £20 to affiliated runners) for the 10K race, and £18 (or £16 to affiliated runners) for the 5K. Runners must be aged 12 or older for the 5K and 16 years or older for the 10K.

  • Entry to the 5 or 10K race
  • Event permitted by the TRA/UKA
  • Finishers souvenir
  • Chip timing with live results
  • Medical support
  • Marked/marshalled route
  • Onsite car parking
  • Bag drop
  • On route photos

Entry details

Event FAQs

We've answered some common questions below. Please contact us if you have any further queries.

How difficult is this race?

Our routes follows undulating off-road terrain on good quality footpaths. There are a few hills to climb and descend, but these are very short lived.

I'm worried about getting lost?

The route will be marked throughout with our orange signage, along with marshals at all the key turning points.

Where can toilets be found at this event?

There are fixed toilet facilities on site at Tewinbury.

How can I attend this event without a car?

Welwyn North train station is a short walk from Tewinbury and is served by regular trains from London.

What footwear should I wear at this race?

The route will be dry throughout but uneven in places. Trail running shoes are recommended.

What prizes are awarded at this event?

All participants will receive a finisher medal. There are awards for the top three male and female finishers overall. Age category awards will be presented to: U13 (5K), U15 (5K), U17 (5 & 10K), U20 (5 & 10K), FV40, MV40, FV50, MV50, FV60, MV60, FV70, MV70.

Withdrawal options

By entering our race, you agree to the following withdrawal policy. This policy applies to all runners with the exception of women of cannot compete due to pregnancy.

Withdrawal date
Credits issued
More than 4 weeks before race day
90%*

*Entrants to The Ridgeway Challenge are entitled to defer their entry for up to 2 years, or receive a 90% entry voucher to use on any Runaway Racing event.

Credits can be used on future race entries, any time during the following 2 years.

Withdrawal requests must be completed online via our manage booking functionality.

Manage Booking
Event withdrawal

Fantastic event. Brilliant location and superbly organised! Highly recommended.

Krisan

Tewinbury 10K, 2023

Very well organised, lovely base for an event with good parking and facilities before an after.

Alistair

Tewinbury 10K, 2023

Event partners

Precision Fuel & Hydration
Tewinbury
Ugoku Projects
She Races
Trail Running Association

Our trail running races

Chiltern Ridge Classic 50K 5th Apr 25
Chiltern Hills 100K 26th Apr 25
The Ridgeway Challenge 31st May 25
Tewinbury Trail 5K & 10K 8th Jun 25
Dunstable Downs Half Marathon 22nd Jun 25
Chiltern Ridge Half Marathon 6th Jul 25
Hughenden Valley Half Marathon 19th Jul 25
Hughenden Valley 10K 19th Jul 25
Race The Light at Wendover Woods 1st Aug 25
Suffolk Coastal Path 50K 13th Sep 25
North Chilterns 50K 12th Oct 25
Chiltern Ridge Winter 50K 1st Nov 25
Chiltern Hills Invitational 30th Nov 25
Greensand Country 50K Returns in 2026

Past results & photos

Not sure which race to choose, check out our past event results and photos.

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