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2026 Centennial100 Relay and Ultra

The Centennial 100

Relay and Ultra Run


The Centennial Relay and Ultra Run is the ultimate running festival for all levels of runners. The 100KM route spanning the entirety of the Centennial Trail can be tackled by teams of 6, 3, 2 or Solo runners.

Distance - 100KM (62 miles)

Date - Saturday, June 13th, 2026

Start Location - Space 802 located at 802 1st Street, Snohomish, WA 98290

Start Time - First groups will be sent out at 6AM. We will send out 10 teams at a time with the slowest teams going first.

After party - The after party will run from 3PM until the last finisher comes in to Space 802. Complete with music, beer garden and food!

Race swag - We will once again do a version of the mesh football jersey.

Collect your Cowbells!

Teams of 6 - Each finisher will get 2 cowbells.

Teams of 3 - Each finisher will get 3 cowbells.

Teams of 2 - Each finisher will get 4 cowbells.

Solo Participants - Will get 7 Cowbells!

Themed Exchanges - Each exchange will be it's own mini running party and will have it's own unique theme.

Route Map - Click here to view the route map.


Exchanges:



Out

Back

Start to Machias

5.83

Runner 1

Runner 6

Machias to Rhododendron

5.59

Runner 2

Runner 5

Rhododendron to Armor

7.09

Runner 3

Runner 4

Armar to Legion Memorial

4.47

Runner 4

Runner 3

Legion Memorial to Bryant

4.02

Runner 5

Runner 2

Bryant to Red Barn

4

Runner 6

Runner 1

Distances:

Runner 1

9.83

Runner 2

9.61

Runner 3

11.56

Runner 4

11.56

Runner 5

9.61

Runner 6

9.83

Registration fees

Prices are inclusive of mandatory charges, items, and fees

RELAY TEAM MEMBERS

Team members can join their relay teams here

  1. Free
    Sep 1 - Jun 14
    Register for RELAY TEAM MEMBERS

6 person RELAY CAPTAIN

Registration closes in 8 months 4 days

  • Captains can register and pay for their teams here

    1. $325.09

      $50 per runner

      Sep 1 – Sep 28
    2. $389.67

      $60 per runner

      Now registering Sep 29 – Jun 13
      Register for 6 person RELAY CAPTAIN

3 person RELAY CAPTAIN

Registration closes in 8 months 4 days

2 person RELAY CAPTAIN

Registration closes in 8 months 4 days

SOLO 100KM

Registration closes in 8 months 4 days

  • For those tackling the entire 100km as a solo participant

    1. $109.81
      Sep 1 – Sep 28
    2. $131.34
      Now registering Sep 29 – Jun 13
      Register for SOLO 100KM

Contact information

Event contact
Snohomish Running Company
Website
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