2027 Centennial 100 - 100 RELAY - 6 PERSON TEAM
Also in this race
These events were grouped as one card in discovery—pick another distance or date without going back.
External Event
Distance
62.1 mi
Pace
All paces
Terrain
Road
Difficulty
All Levels
About this run
The Centennial Relay & Ultra Run isn’t just another race. It’s an unforgettable 100K adventure through the heart of the Pacific Northwest! Covering 100KM (62 miles) along the Centennial Trail, this epic journey starts at Space 802 in Historic Downtown Snohomish, takes runners all the way north to the Nakashima Barn in Arlington, and back to Snohomish for the finish. Take on the entire 100K solo or build your crew and share the miles with a team of 2, 4, or 6 runners. Whether you're an ultra runner ready to tackle all 62 miles or looking for an unforgettable relay experience with friends, there’s a way to take on the Centennial. Expect a full day of running, team support, relay exchanges, beautiful Pacific Northwest scenery, and plenty of opportunities to cheer each other on along the way. Collect the Cowbells 🔔 There are 6 legs to conquer and 7 cowbells to collect! At the end of each leg, the runner who completed that leg will receive a Centennial cowbell to celebrate the miles they just conquered. Keep collecting them throughout the day as your team makes its way up the Centennial Trail and back. Your 7th and final cowbell will be waiting at Space 802, where you’ll complete the 100K journey and celebrate at the finish! For relay teams, the cowbell belongs to the runner who completed that leg, so divide up the miles, collect your cowbells, and see your team’s 100K adventure come together one leg at a time. Event Details Distance: 100KM / 62 Miles Date: Saturday, June 19, 2027 Start & Finish: Space 802, Historic Downtown Snohomish Course: Centennial Trail to Nakashima Barn in Arlington and back Race Options: 100K Solo 2-Person Relay 4-Person Relay 6-Person Relay One trail. 100 kilometers. 7 cowbells. Your challenge, your way. Grab your crew or take it on solo and get ready for an unforgettable day on the Centennial Trail!
Typical conditions
For events around June 2027 in Snohomish, WA, United States: Typical summer / warmer season in this region — plan hydration and sun protection; verify any heat policies with the organizer.
How to prepare
Ultra distances need longer training blocks, fueling practice, and gear that matches the course type listed by the organizer. Always verify elevation, aid stations, and cutoffs on the official page.
Browse destination racesGetting there
This event is listed in Snohomish, WA, United States. Confirm the exact start venue, parking, and transit options on the official registration page.
Registration is handled by the official event organizer
Know a local group? Host a community run in Snohomish
Also in this race
- Jun 19, 2027 · 11:00 AM (this one)
- Jun 19, 2027 · 11:00 AM
- Jun 19, 2027 · 11:00 AM
- Jun 19, 2027 · 11:00 AM

