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MadCity Ultras

Sat, Apr 11, 2026, 6:30 AM CDT

Location
Madison, WI
Vilas Shelter - Madison City Park, Vilas Park Drive, 53715
Open in Maps
Type
ULTRA
Official registration

Sign up and verify details on the organizer’s official page.

At a glance

Challenge yourself on a beautiful 10K loop at the MadCity Ultras, home to the 2026 100K National Championships.

  • Scenic
  • Competitive

Great for: runners who like a competitive edge, runners training for a serious effort

Less ideal for: walkers-only pacing, first-time racers without recent mileage

The MadCity Ultras, a long-standing event since 2007, invites runners to experience the beloved Arb Loop within the beautiful UW-Madison Arboretum. This race features a 10K loop course, offering both solo 100K and 50K distances, as well as 100K and 50K relay options. In 2026, the event proudly hosts the 100K National Championships, drawing top ultra-runners to its scenic and challenging course.

What to expect

  • Run a 10K loop course through the scenic UW-Madison Arboretum.
  • Compete in the 100K or 50K solo ultra, or join a 100K or 50K relay team.
  • Experience the excitement of the 100K National Championships.

Standout details

  • Host of the 100K National Championships
  • Beloved Arb Loop course
  • Scenic UW-Madison Arboretum setting
  • 10K loop format

Auto-drafted from the public listing — confirm details on the official event page before signing up.

Distances & registration

5 options

Registration for all distances is through the official signup link above.

  • 50K

    Sat, Apr 11, 8:00 AM CDT · From $118.95

    Opens Nov 1, 2025, 2:00 AM CDT · Closes Nov 30, 2025, 6:59 PM CST

  • 50K

    Sat, Apr 11, 8:30 AM CDT · From $187.53

    Opens Nov 1, 2025, 2:00 AM CDT · Closes Nov 30, 2025, 6:59 PM CST

  • 100K

    Sat, Apr 11, 6:30 AM CDT · From $134.78

    Opens Nov 1, 2025, 2:00 AM CDT · Closes Nov 30, 2025, 6:59 PM CST

+ 2 more options
  • 100K

    Sat, Apr 11, 6:30 AM CDT · From $134.78

    Opens Nov 1, 2025, 2:00 AM CDT · Closes Nov 30, 2025, 6:59 PM CST

  • 100K

    Sat, Apr 11, 7:00 AM CDT · From $266.65

    Opens Nov 1, 2025, 2:00 AM CDT · Closes Nov 30, 2025, 6:59 PM CST

The course

  • Hilly
  • Timed race
From the organizer

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.

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