Course
A backyard ultra at Crickhowell in the Black Mountains, run as repeated 4.167-mile loops started on the hour. The loop is half trail and half tarmac, with one gradual climb and a short steep section and otherwise relatively flat, fast terrain. Capped at twelve hours, with an ultra medal at 32 miles.
Key dates
- !RegistrationOpen now
- !Entries closeThu 4 Feb 2027 · in 15 weeks
- ★Race daySat 6 Feb 2027
About
A Backyard Ultra is a last one standing endurance race where competitors must consecutively run a 4.2 mile course in less than one hour, every hour. The race is based in the Black Mountains, with a course that is 50/50 trail and tarmac, featuring only one gradual climb and mostly flat terrain.
Save Trails & Tarmac Winter Back Yard Ultra to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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Llandudno 10K
Historic promenade start beneath the awe-inspiring Great Orme
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Caerphilly Trail Races: 5K & 10K
Fields and woods finishing on a downhill singletrack
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Brecon To Cardiff
Follows the Taff Trail into Cardiff from Brecon
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Brecon Canal 10
Flat towpath run beside the Monmouthshire & Brecon Canal
A confirmed date shows its day; a provisional one shows only its month, because we won't claim a day we don't have. This page is rebuilt every night from the RunCalendar catalogue.
