Centennial100 Ultra
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2026 Centennial100 Relay and Ultra
The Centennial 100 Relay and Ultra Run is a 100 km event that follows the Centennial Trail in Snohomish, Washington. The event is offered as relay teams of six, three, or two runners, or as a solo 100 km entry. It is scheduled for Saturday, June 13, 2026, with the start location at Space 802, 802 1st Street, Snohomish, WA 98290. The route spans the entirety of the Centennial Trail and is divided into sequential exchange points; each exchange is described as having its own theme.
Race swag includes a version of a mesh football jersey. Finish-area activities take place at Space 802 and include music, a beer garden, and food. Cowbells are distributed to finishers according to team size: teams of six receive two cowbells per finisher, teams of three receive three cowbells per finisher, teams of two receive four cowbells per finisher, and solo finishers receive seven cowbells.
Individual runner distances for the six-leg relay are listed below.
- Runner 1: 9.83 km
- Runner 2: 9.61 km
- Runner 3: 11.56 km
- Runner 4: 11.56 km
- Runner 5: 9.61 km
- Runner 6: 9.83 km
The event contact is Snohomish Running Company and multiple registration categories are available for relay teams and solo entrants. Visit the organization's website for the most recent information.
