-->
www.sientries.co.uk

Trails & Tarmac 12hr BYU - Winter -

calendar_today 06 Feb, 2027

directions_run Running

language Official Website

sell £75.00

Trails & Tarmac 12hr BYU - Winter -

About the Event

The Limitless Trails BYU Series returns this season with an exhilarating twist: a strict time cut-off and a thrilling sprint finish for the final yard. This unique race unfolds just outside Crickhowell amidst the serene beauty of the Black Mountains, offering runners both challenging terrain and picturesque views.
Set against a backdrop of rolling hills and lush landscapes, participants will navigate through 50% trail and tarmac routes. The course features one gradual climb and a short steep section but remains mostly flat throughout, ensuring that runners can maintain their pace without undue fatigue. With the race capped at 12 hours, competitors must complete each of the first eleven yards within an hour to be eligible for the final sprint.
The event begins promptly at 9am on Saturday morning from a designated starting corral where all participants will gather before the bell signals the start. Runners are given precise instructions and three-minute warnings prior to the beginning of each loop, ensuring everyone is prepared as they transition between yards. Common aid stations along the route provide essential hydration and nutrition, with hot food available after completing the fifth yard.
Medals await every finisher who completes any single yard in this series, while those who push beyond their limits by reaching 32 miles will earn a special ultra medal to commemorate their achievement. A dedicated team of medics is on-site throughout the event along with ample facilities for showers and toilets, ensuring runners can focus solely on pushing themselves.
Supporters are welcome but must adhere strictly to guidelines that include no phone calls during race time except in emergencies and no access to the starting corral or course itself while competitors are active. A pop-up kitchen area is provided for supporters' assistance with preparation tasks under staff supervision.
With its blend of scenic beauty, challenging terrain, and competitive spirit, this event promises an unforgettable experience for all participants looking to test their endurance and determination in one of Britain's most captivating landscapes.
The Limitless Trails BYU Series invites you to embrace the challenge and celebrate your achievements on this remarkable course.

Races Offered

Entry Fee

Feb 06, 2027

straighten

Distance — 12 Hours

terrain

Type — Running

timer

160 days remaining

sell

£75.00

Weather History

These values represent the 3-year monthly averages for February in Crickhowell.

thermostat Temperature
4.0° / 8.8°
wb_sunny Feels like
0.0° / 4.9°
light_mode Avg sunshine hours
3h 28m
water_drop Avg rainfall
3.2 mm
ac_unit Avg snowfall
0.1 cm
air Avg wind speed
15.2 km/h (Gentle breeze)
opacity Sweat loss rate
Low
terrain Course conditions
Firm and slightly soft
sunny Max UV Index
Low (2.1)
humidity_mid Humidity
90.8%
wb_twilight Sunrise
08:26
nightlight Sunset
18:24

About Crickhowell

Learn more about the host city, Crickhowell.

Scenic view of

Crickhowell is a small town in Powys, Wales. The town has a population of around 2,100 people (2011).

Read more launch

Hotels & Places to Stay

Runner Reviews

Read what other athletes have to say about their experience at the Trails & Tarmac 12hr BYU - Winter -.

No reviews yet

Be the first to share your experience with the community!

Suggest an edit

Spotted an error or missing detail about the Trails & Tarmac 12hr BYU - Winter -? Help us improve.

Nearby Races

Explore other exciting events happening in this same region.

SAS ENDURANCE - September 2026

SAS ENDURANCE - September 2026

location_on Talybont-on-Usk, South West, GB

calendar_today Sep 04, 2026

2026 Roman Run

2026 Roman Run

location_on Brecon, Wales, GB

calendar_today Sep 05, 2026

The RIDUM 2026

The RIDUM 2026

location_on Ystrad Mynach, South West, GB

calendar_today Sep 05, 2026

The RIDUM

The RIDUM

location_on Llanbradach, Wales, GB

calendar_today Sep 05, 2026

Recommended for You

Hand-picked events we think you’ll love.

SAS ENDURANCE - September 2026

Sep 04, 2026

SAS ENDURANCE - September 2026

SAS ENDURANCE The toughest SAS Test Week Route March. 64km over the highest peaks in South Wales. Please note: NEW TICK…

Read more
Anglian Water Rutland Cycle Ride 2026

Sep 10, 2026

Anglian Water Rutland Cycle Ride 2026

The Anglian Water WaterAid Cycle Ride is back! Join us in supporting WaterAid’s vision of making clean water, decent to…

Read more
Run Norwich Junior 2026

Sep 06, 2026

Run Norwich Junior 2026

Run Norwich Junior returns in 2026 Giving children the brilliant opportunity to experience the electric race-day atmosp…

Read more
Run Norwich 2026

Sep 06, 2026

Run Norwich 2026

Run Norwich is a 10-kilometre road race, organised by Norwich City FC Community Sports Foundation (CSF). Our course has…

Read more

Get race deals & updates

Subscribe to our newsletter for curated race picks and discounts.