Trail Running calendar near Seward 2026-2027

Tsalteshi Backyard Ultra in Soldotna, Alaska is a Last Runner Standing event set for June 5, 2026. Registration closes on June 4 at 11:59 PM Alaska time.

A 5 mile out and back on the Spencer Glacier Trail reachable only by Alaska Railroad from Portage, AK. The course runs to Spencer Lake and the Glacier Overlook and returns to Chugach Adventures base camp; field conditions include bear count..

Run De Tour is a two part trail run at Kincaid Park and the Hillside Trails that uses sections of the Double Bubble and Spencer Trails. Multiple distances are offered and registration is non refundable with bib pickup on race day.

Experience a focused uphill challenge at the Bird Ridge Hill Climb in Indian Alaska. Choose between the three mile Full Climb or the shorter Jack's Run for a vertical racing experience organized by the Alaska Mountain Runners.

The 98th Mount Marathon in Seward, Alaska on July 4, 2026 features uphill-and-back races with multiple distances and entry categories, including junior, open, non-binary, and golden over-70 events.

A backcountry footrace of about 23 miles from above Girdwood to the Eagle River Nature Center on July 18, 2026. The unmarked, technical route includes snowfields, a cold river crossing, and possible wildlife encounters.

Mud Factor Anchorage is a 5K mud and obstacle run at Kincaid Park on July 19 2026. A signed liability waiver and photo ID for adults are required and spectators pay a cash fee for festival area access.

A low key, mostly self supported trail ultramarathon on the historic Resurrection Pass Trail in Alaska offering 50 mile and 100 mile distances over late July dates.

A 6.1 mile mountain trail race at Alyeska Resort on July 25, 2026, featuring 3,912 feet of vertical gain and a field capped at 600. The route climbs from the DayLodge to alpine ridgelines and returns via Max's Mountain trail.

Run De Tour is a two part trail run at Kincaid Park and the Hillside Trails that uses sections of the Double Bubble and Spencer Trails. Multiple distances are offered and registration is non refundable with bib pickup on race day.

A community 2K and 5K at Westchester Lagoon on September 26, 2026 celebrating Anchorage School District language immersion programs. Proceeds support classroom materials, after-school K-6 learning, cultural events and student exchanges.

A trail running event in Girdwood, Alaska on October 3, 2026 offering marathon, half marathon, juniors half, and a 5K across local trails. Five aid stations, a marathon cutoff at Crow Creek Road, and proceeds support the Girdwood Nordic Ski..