Frost Eagle Trail Run

JAN
17
2026
Frost Eagle Trail Run at Soaring Eagle Regional Park offers 5 mile and Half Marathon trail races on January 17. Tackle rolling, technical singletrack in a figure eight with stocked aid stations and earn limited Winter Trail Series socks.
Sat 17 Jan 2026
Half Marathon 5 miles

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Frost Eagle Trail Run : event details

Frost Eagle Trail Run takes place on January 17 at Soaring Eagle Regional Park in Sammamish, WA. It is the sixth event in the 2025-26 Winter Trail Series. Distances offered include:

  • 5-mile
  • Half Marathon

The event offers online pre-registration and day-of registration options. Youth runners under 20 receive a $10 discount on registration. Participation in four or more Winter Trail Series events earns a pair of limited edition series socks.

Course, aid and logistics

Courses feature rolling hills that are mostly short or moderate in grade and include technical singletrack with rocks and roots. A short section runs on the Pipeline Trail, which is mostly groomed gravel and can become muddy. The Half Marathon is a loop run twice; the 5-mile course is one loop. The course forms a figure 8, with the primary aid station at the intersection of the 8. Runners pass that aid station twice per lap, so Half Marathon runners pass it four times and 5-mile runners twice. Aid stations supply water, electrolyte drink, and a variety of carbohydrate-rich or salty foods.

The start and finish are at the park main entrance on the west side, where a paved parking lot is available with no parking pass required. Street parking is available on the south side of E Main Dr; the north side is signed No Parking. Trails remain open to other park users during the event. Dogs are not allowed on the race course. In an emergency call 9-1-1. Visit the organization's website for the most recent information.

Half Marathon
Half Marathon
5 mi
5-Mile

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