Date
Sat, 10 Apr 2027
Start
06:30
Venue
Vilas Park Shelter, Madison, Wisconsin
Madison, Dane County
Countdown
April
The full 100K, run as ten laps of one 10K loop. A small, serious field going round and round, where steady pacing and staying patient matter most.
Key facts
01Course closes at 20:00, so you have 13.5 hours from the 06:30 start
02USATF membership is not required to enter the 100K Solo
03Ten laps of the counterclockwise Arb Loop
Create a free training plan for the MadCity Ultras 100 km
7-day free trial, no card required
The course
One lap, on repeat
Madison · one lap
Distance100km
Start · finishOne lap · elevation
0 kmDrag map to rotate10.1 km
Weather
Early-April, Madison
12°CTypical high
0°CTypical low
-12°CColdest in 20 years
34%Days with rain
Highs around 12°C and lows around 0°C, but it has dropped to -12°C. Rain on 34% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserMadCity Ultras Local Organizing Committee (LOC); Nora Bird, Race Director
Websitemadcityultras.com
Instagram@MadCityUltras
Running since2007
Training
Training for the MadCity Ultras 100 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a MadCity Ultras 100 km plan targets
Typical sessions
100 km
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Steady mileage with one or two quality days a week
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your MadCity Ultras 100 km plan.
7-day free trial, no card required.
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