Course
Trail races starting in Cardiff and heading out into the countryside north of the city. The half marathon is point-to-point over Garth mountain, its high point, and finishes in a flat nature reserve; the marathon adds three circular sections to the same route for about 1,300m of climb. Two checkpoints with water and refreshments on the half, three on the marathon.
Key dates
- !RegistrationOpen now
- ★Race daySat 8 May 2027
About
You'll start in Wales' capital city, but you'll soon feel a million miles away as you leave the hustle and bustle behind for idyllic trails and scenery. The half marathon is an excellent trail run for new runners and veterans alike. You'll enjoy mountain views, woodlands, forest, and great camaraderie as you explore a range of trails and countryside paths. The marathon has approximately 1,300 meters of climb, taking in the half marathon route and adding an additional 13.1 miles of trails, described by past runners as 'beautiful and brutal'.
Save Radyr Trail Half Marathon & Marathon 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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