Centennial 100 Relay and Ultra Run
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About the race
The Centennial 100 Relay and Ultra Run is a 100 km (about 62 miles) out-and-back event along the Centennial Trail. The course runs from Space 802 in Historic Downtown Snohomish north to the Nakashima Barn in Arlington and then returns to Snohomish for the finish. Participants may run the entire distance solo or compete as part of a team; the event materials list teams of 2, 4, or 6 runners as options. The outbound course is divided into six legs.
Each outbound leg is repeated on the return, producing a total of 12 relay legs and the full 100 km distance. - Start → Machias Park: 5.83 miles - Machias Park → Rhododendron Park: 5.59 miles - Rhododendron Park → Armar Road: 7.09 miles - Armar Road → Legion Memorial Park: 4.47 miles - Legion Memorial Park → Bryant Road: 4.02 miles - Bryant Road → Nakashima Barn: 4.00 miles There are six aid stations located along the course. Runners should plan to carry any additional hydration, nutrition, or personal items needed between aid stations. Teams are responsible for transporting their runners between exchange points using team vehicles.
Packet pickup is scheduled on race morning at Space 802, with additional check-in times to be provided closer to the event. The course closes at 9:00 PM. Visit the organization's website for the most recent information.
