MadCity Ultras
Decision scores
Six 0–100 scores telling you, at a glance, who this race is for.
Best for
About the Race
Since 2007 this race has encompassed a beloved local loop known as the Arb Loop. This is a 10K loop that includes the beautiful landscape of the UW- Madison Arboretum. Once again MadCity will host the 100K solo, 50K Solo, along with the 100K Relay, and 50K Relay. 2026 will be the home of the 100K National Championships.
Course Profile
Course profile data unavailable for this race.
Course features
Accessibility & inclusion
Vibe & community
We don't have vibe tags for this race yet — organizers can claim the listing to add them.
History & past results
Past finisher times and year-over-year participation will appear here once the organizer publishes them.
Reviews
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Common questions
How hard is the MadCity Ultras Ultra?
We don't have a verified elevation profile yet — check the organizer's course map for the climb breakdown.
What should I wear?
Dress for ~10°F warmer than the standing temperature once you start running. Throwaway long-sleeve at the start, gloves and a hat for sub-50°F mornings, singlet plus visor when it climbs above 60°F. The race-day forecast above is the source of truth closer to the date.
When does it sell out?
No published deadline. Most races raise the entry fee in tiers and can sell out without warning — sign up early if you're committed.
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