Little Su 50K

Big Lake, United States • 14 Feb 2027

Little Su 50K - event overview

The Little Su 50K is a winter, human powered trail race of 50K held on marked trails in remote, frozen Alaska. The event takes place near Big Lake, Alaska, and is organized by Alaska Winter Wilderness Races as part of the Susitna event weekend.

The race is scheduled in February; the Little Su 50K is listed for February 14th while the companion Susitna 100 is scheduled February 13 to 15. The course runs on marked routes that offer varied winter conditions and landscape views typical of the region.

Organizers publish practical race materials including course descriptions, course maps, race rules, gear information, and race results. There is a related 500 Club resource linked to the Little Su 50K information. The event is described as human powered and staged in winter wilderness settings, which can involve remote trail access and cold weather considerations.

The event materials note a land acknowledgement: the races take place on traditional lands of the Dena’ina and Ahtna Dene people, and portions of the land are owned by the Mental Health Trust Authority under permit. Revenue from permits supports the authority. Visit the organization's website for the most recent information.

Race information

50 km
Little Su 50k
Visit the organization's website for the most recent information.
Trail runs nearby

A Backyard Ultra at Government Peak Recreation Area in Palmer, Alaska on July 11, 2026. Runners repeat a 4.167 mile loop with hourly starts; field capped at 75 and standard Backyard Ultra rules apply.

An inaugural 5K on July 11, 2026 at Skeetawk Ski Area in the Hatcher Pass area, co-hosted by regional organizations; registration fees support local youth running teams and registrants receive a 20% Hatcher Romp ticket discount.

Mud Factor ANCHORAGE is a 5K mud and obstacle run at Kincaid Park on July 19, 2026, with family and adult waves, a required signed waiver, and spectator festival access for a 10 dollar cash fee while under 14s are free.

Mountain road races in Hatcher Pass, Willow AK, offering a 50 Mile, a slightly-longer-than-marathon route, and a three-person relay along Hatcher Pass Road with multiple aid stations and strict pacer and parking rules.

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