Pigtails Challenge
Renton, United States • 24-25 May 2025
The Pigtails Challenge is an endurance running event held at Lake Youngs Watershed in Renton, Washington. The race features a rolling 9.4-mile loop with 900 feet of elevation gain per lap, offering challenging vertical climbs without technical mountain terrain. Distances range from 50K to ultra distances of 100K, 100 miles, 150 miles, and 200 miles, with longer races requiring some unsupported mileage before joining the loop course.
The event is well-supported with aid stations, food, and a festive atmosphere honoring the tradition of a fun, party-like race. It welcomes pacers and crews, and emphasizes trail sharing with other users. The race tests both physical endurance and mental perseverance. Visit the organization's website for the most recent information.