Mt Si Relay & Trail Runs

Mt Si Relay & Trail Runs is an annual endurance sports event that offers participants the opportunity to take part in relay races and trail runs in Snoqualmie, WA.

Solo Distances

The event includes options for half marathon, marathon, 50K, and 50-mile distances, catering to both beginners and experienced ultra runners.

Relay

The relay race allows teams of five to participate, with each member running two legs of the course. The course features scenic views and well-marked exchanges for seamless transitions.

Course Description

The course takes runners through the Snoqualmie Valley Trail and John Wayne Pioneer Trail, offering views of the Cascade foothills and rivers. The terrain is mostly flat with some elevation changes, providing a challenging yet rewarding experience for participants.

Event History

The event originated as the Falls to Gasworks Relay in 1983 and has since evolved into the Mt Si Relay & Trail Runs, attracting runners of all levels to enjoy the scenic trails and friendly competition.