Mt. Si Relay & Ultra Runs

Loading Events

« All Events

Virtual Event
  • This event has passed.

Mt. Si Relay & Ultra Runs

Sat April 24 - Sun May 9

Virtual Event

The 36th annual Mt. Si Relay & Ultra Runs event presented by Eastside Runners. The 59-mile relay for teams of five and both ultras are excellent venues for first-timers, run near the base of Mount Si. The relay and ultra events mostly follow the generally smooth and gentle Snoqualmie Valley Trail.

Half Marathon, Marathon, 50K, 50 Mile, Relay


While we strive to keep event dates accurate, due to Covid be aware dates may change or events may be cancelled before we can reflect such here. Please visit the organizers website to confirm dates before making plans.


Events displaying location and “virtual” are likely offering both options for 2021.

Default image
RaceCenter is your resource for events and training advice.