Ultramarathon Calendar 2025 Calendar Week. Find your perfect race here! An ultramarathon or 'ultra' is the term for any running event longer than the traditional marathon length of 42.195 kilometres (26.2 miles).
Variety runs find by state; This page lists all weeks in 2025.
All Weeks Are Starting On Monday And Ending On Sunday.
An ultramarathon or 'ultra' is the term for any running event longer than the traditional marathon length of 42.195 kilometres (26.2 miles).
Plan Your Next Ultramarathon With This Complete Event Calendar For North American Ultrarunning Events Including Trail Races And Road Races.
It has 52 weeks and starts on wednesday, january 1st 2025.
Discover, Compare And Book Over 200 Uk Ultras.
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Here You Can Find Upcoming Ultra.
All weeks are starting on monday and ending on sunday.
An Ultramarathon Or 'Ultra' Is The Term For Any Running Event Longer Than The Traditional Marathon Length Of 42.195 Kilometres (26.2 Miles).
There are 52 weeks in 2025.