About the 2027 Centennial 100
The course runs along the Centennial Trail out of Historic Downtown Snohomish, heading north to a barn in Arlington before turning back to the finish in the same downtown area. The trail is a rail trail, so the terrain stays relatively smooth underfoot for the full out-and-back. Runners can take on the whole distance solo or break it into legs with a relay team.
At each leg's end there is a cowbell waiting, with the final one at the finish back in Historic Downtown Snohomish. Relay exchange points are spread along the trail between Snohomish and Arlington, so teams can divide the miles however they like.
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Distances & Start Times
100K6/19/2027 06:00$125
100K6/19/2027 06:00$175
100 RELAY - 4 PERSON TEAM6/19/2027 06:00$300
100K6/19/2027 06:00$390
Going for a Time?
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
Where to Stay
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