Six Days in the Dome

JUN
18-28
2026
Six Days in the Dome is a major indoor ultra-running event in Milwaukee, featuring 10-day, 6-day, and 12 to 72-hour timed races. Held in a climate-controlled venue ideal for record attempts, it's a USATF and IAU sanctioned event. Runners choose from multiple start dates for the fixed-time distances.
18-28 Jun 2026

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Event Overview

Six Days in the Dome is a multi-day fixed-time ultra-running event scheduled for June 18-28, 2026. It will be held at the Pettit Center, located at 500 South 84th Street in Milwaukee, Wisconsin.

Race Options

The event features multiple fixed-time distances over the event period. All start times are at 10:00 AM.

  • 10-Day: Begins June 18.
  • 6-Day: Begins June 22.
  • 72-Hour: Options start June 23, 24, or 25.
  • 48-Hour: Options start June 23, 24, 25, or 26.
  • 24-Hour: Options start June 23, 24, 25, 26, or 27.
  • 12-Hour: Options start June 23, 24, 25, 26, or 27.

Results for each fixed-time distance will be consolidated across all days into a single set of results.

Invitational Race

A separate Invitational 24-Hour race is scheduled for June 20, intended for athletes aiming for records or national team qualification. Entry is limited and requires runners to contact the organizers. This race will share the track with the ongoing 10-Day event.

Venue and Certification

The event takes place indoors on a Regupol Kombi running surface. The climate-controlled environment is maintained at 50-55 degrees Fahrenheit with 30-35% humidity. The course is a USATF certified course (WI14001DM) and the event is sanctioned by both USATF and the International Association of Ultrarunners (IAU).

Registration

Registration closes on June 27, 2026. Refunds are available in full (minus processing fees) before April 1, and at 50% until May 1. No refunds are offered after May 1. Visit the organization's website for the most recent information.

72-Hour
6 Day
48-Hour
24-Hour
12-Hour
10-Day