Frost Eagle Trail Run
Sammamish, United States • 17 Jan 2026
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.