
The Impossible Mile is a running race on July 4, 2027 in Ennis, MT.
Founded in 2026, and brought to you by The Greater Yellowstone Adventure Series and CrossFit StoneFly, THE IMPOSSIBLE MILE is an Independence Day workout tradition in cowboy town Ennis, Montana, engaging both residents and visitors alike. We laugh together, and cry together, as we take on versions of this famous workout. Come join us and build strength, character, and common purpose. A portion of the proceeds benefits the local Ennis schools via the Ennis Booster Club. Thank you for your generosity.
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
79°
Typical Low
44°
Chance of Rain
30%
Based on US Climate Normals data from Ennis, 1 mi from the venue.
Nearest Airport
BZN
Bozeman Yellowstone International Airport · 41 mi
Time Zone
Mountain Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Every finish line starts with a single decision. Claim your spot at The Impossible Mile, put it on the calendar, and turn “someday” into a start date.
265
Days to train
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The Impossible Mile
Jul 4, 2027