Wisconsin · 64 miles (and shorter checkpoints)

Frozen Otter Ultra Trek

Frozen Otter Ultra Trek is a 64 miles (and shorter checkpoints) event held in Whitewater, Wisconsin. Its next confirmed date is Thursday, January 14, 2027. About 150 runners take part across all distances.

Race day
January 14, 2027
Location
Whitewater, WI
Field size
~150 runners

Race details

Date
Thursday, January 14, 2027
Distances
64 miles (and shorter checkpoints)
Field size
About 150 runners
Course
Hilly glacial moraine terrain
Registration
raceentry.com
Official website
fatotter.com

About the Frozen Otter Ultra Trek

A self-supported 64-mile winter trek across Wisconsin's hilly Kettle Moraine terrain in the dead of winter.

Rankings and notes

Rankings and awards
Notoriously brutal self-supported winter ultra
Notes
[next_date estimated]

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Frozen Otter Ultra Trek: common questions

When is the Frozen Otter Ultra Trek?
The next confirmed date is Thursday, January 14, 2027.
Where is the Frozen Otter Ultra Trek held?
In Whitewater, Wisconsin.
What distances does the Frozen Otter Ultra Trek offer?
64 miles (and shorter checkpoints).
How many people run the Frozen Otter Ultra Trek?
About 150 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
How do I register for the Frozen Otter Ultra Trek?
Registration is handled by the organiser at raceentry.com. Entry fees, caps and deadlines are set there.