Trail Running Calendar Alaska 2025-2026

Little Su 50K in Big Lake, Alaska is a human powered winter 50K loop across frozen rivers, swamps and woods, open for running, biking or skiing. Register Nov 1, 2025 for the Feb 15, 2026 race and expect wildlife sightings.

Join the 9th annual Krrbrrr Knik River Break Up Ramble Run in Palmer for a laid back eight hour trail romp where you can run from one to eight hours. Expect muddy, slushy trails, scenic views and a fun unpolished community vibe.

The Tsalteshi Backyard Ultra will take place in Soldotna on Friday 5 June 2026.

Experience the Alaska Endurance Trail Run on UAF West Ridge trails, racing under the midnight sun in Interior Alaska for a unique ultramarathon vibe. Choose 6 hour, 12 hour or 24 hour timed challenges to test endurance on scenic trails and..

Kodiak Mountain Series is a three day stage race in Kodiak, AK, June 18 to 20, 2026, covering about 20 miles and 8,000 feet of climbing across three courses. Race for overall and KOM honors on rugged single track with USATF cash prizes.

Denali 100K runs along Alaska's Denali Highway with sweeping mountain and glacier views and long arctic daylight. Field limited to 50, runners race with crew and one pacer for a tough intimate adventure for experienced ultrarunners.

Denali135 is a rugged 135 mile point to point road ultramarathon along the Denali Highway in Alaska, limited to 50 runners. Expect remote gravel roads, big climbs, mandatory support crews, a 48 hour cutoff and a moose antler buckle for fini..

Run the rugged Denali50K along Alaska's historic Denali Highway on June 21, 2026, a scenic 50 km test through glacial features and wild tundra. Entry is limited to 50 runners, with crew supported or uncrewed options, one aid station and a n..

AKtive's Backyard Ultra at Government Peak near Hatcher Pass in Palmer Alaska challenges runners to complete a 4.17 mile loop every hour until one person remains. Expect technical single track, elevation and night loops, so come prepared.

Take on the Crow Pass Crossing, a rugged 23 mile mountain route between Girdwood and the Eagle River Nature Center with glacier views and a frigid river crossing. This iconic Alaska challenge attracts adventurous runners and supports Health..

Tackle Alyeska's Cirque Series in Girdwood for a steep, technical 6.1 mile mountain challenge with nearly 4,000 feet of vertical gain. Expect epic alpine ridge views, rocky climbs and a thrilling forested descent to the DayLodge finish.

Anchorage United Nations Run : 2025 event status The 2025 Anchorage United Nations Run was cancelled due to an error in the permitting office that delayed approval. The organizers plan to hold the event next year on September 26, 2026. Purp..