Logo

LT-100 & LT-50 Mile Ultra Challenge

Crickhowell, United Kingdom • 12 Jul 2025

The LT-100 & LT-50 Mile Ultra Challenge is a demanding trail running event held in Crickhowell, Powys, South Wales, traversing the scenic Black Mountains and Brecon Beacons National Park. Participants can choose between two 50-mile ultra distances or combine them for a grueling 100-mile challenge. The course features well-supported checkpoints with refreshments, hot food, and physiotherapy services.

Runners are fully tracked for safety, and support crews and spectators are welcome. The event emphasizes both mental and physical endurance, with stunning mountain views on the out-and-back route. Finishers receive unique medals and T-shirts, with nutrition provided by Science in Sport. Visit the organization's website for the most recent information.

United Kingdom Wales Crickhowell

Race information

Registration
100 mi
100 Mile Ultra Marathon
50 mi
50 Mile Ultra Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

Beacons Ultra

Talybont-on-Usk - 7 mi from Crickhowell

Run the Beacons Ultra, Marathon or Half on 8 November 2025 from Talybont on Usk, Powys. Varied trails, mountain climbs and canal paths take you to Pen Y Fan and the reservoir for a scenic, challenging autumn outing.

UTMB Index

Trails & Tarmac Backyard Ultra

Crickhowell

Take on the Trails and Tarmac 12 Hour Backyard Ultra in Crickhowell, a scenic 4.2 mile loop blending trail and tarmac to test your pacing and endurance. Run hourly laps for up to 12 hours with hot food, facilities and a trophy for the final..

Cardiff Trail Half Marathon

Tongwynlais - 23 mi from Crickhowell

The Cardiff Trail Half Marathon is an exciting running event set against the stunning backdrop of Castell Coch. Scheduled for November 16, 2025, this newly introduced race offers a unique blend of competition and scenic beauty, making it an..

Saturn Running - Cwmdare

Cwmdare - 17 mi from Crickhowell

...

Join the Smurf Run at Dare Valley Country Park for a seven hour Time Challenge where you choose how many laps to tackle and soak up scenic country views. Complete a lap to earn a themed medal and enjoy on course refreshments.

Secret Santa Tinsel Half Marathon

Black Mountains, Wales - 7 mi from Crickhowell

Celebrate the season on rugged Black Mountains trails at the Secret Santa Festive Trail Series. Three scenic but technical distances, bespoke medals, mulled wine and full on course support make for a memorable winter run.

Secret Santa Series

Tretower - 3 mi from Crickhowell

Pick 14 km, 10 miles or a half marathon from Cwmdu across the Black Mountains with rocky single track, boggy moorland and stunning views. Well marked with checkpoints and medical cover, this scenic but testing trail welcomes dogs on leads.