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Mt Si Relay and Trail Runs

May 04, 2025 at 5:00 AM

39801 SE Park St, Snoqualmie WA, 98065, USA

Feature this race

The half marathon, marathon, 50K and 50M are run on the scenic Snoqualmie Valley Trail with the marathon, 50K and 50M continuing on to run on the John Wayne Pioneer Trail. The trail is old railroad grade with a gentle climb from North Bend to Rattlesnake Lake. All distances start and finish and Snoqualmie Elementary School.

Distance(s)
  • 13.1M
  • 26.2M
  • 50K
  • 50M
Course Map
Download Map
Starting Elevation
400
Type
  • Ultra
Prize Money
no
Course Percentage
95% on un-paved trails
First Year of the Event
1983
High Point
1400
Entry Fee(s)
$45 (Lowest / Early Registration), $85 (Highest / Late Registration)

Event History

2025
May 04, 2025
2024
Apr 21, 2024
2023
Apr 23, 2023
2022
Apr 24, 2022
2020
Apr 26, 2020
2019
Apr 28, 2019View Results →
2018
Apr 29, 2018View Results →
2017
Apr 23, 2017View Results →
2016
Apr 24, 2016View Results →
2015
Apr 26, 2015View Results →
2014
Apr 27, 2014View Results →
2013
Apr 28, 2013View Results →
2012
Apr 22, 2012View Results →
2011
Apr 10, 2011View Results →
2010
Apr 11, 2010View Results →
2009
Apr 19, 2009View Results →
2008
Apr 13, 2008View Results →
2007
Apr 22, 2007View Results →
2006
Apr 23, 2006View Results →
2005
Apr 17, 2005View Results →
2004
Apr 04, 2004View Results →
2003
Apr 20, 2003View Results →
2002
Apr 14, 2002View Results →
2001
Apr 08, 2001View Results →
2000
Apr 09, 2000View Results →
1999
Apr 25, 1999View Results →
1998
Apr 26, 1998View Results →
1997
Apr 27, 1997View Results →
1996
Apr 28, 1996View Results →

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