Cinco de Mayo Half Marathon, 10K & Kids Mile

Saturday, May 5, 2018 • Snoqualmie, WA • Course Map

One of five races staged here in the Snoqualmie Valley area of western Washington State each year by the locally based Mt. Si Running Club and Run Snoqualmie, the town’s Cinco de Mayo Half Marathon & 10K race is set for its 9th annual running this year, after more than 500 runners crossed the finish line in last year’s race.

The race — named for the Mexican holiday that commemorates the Mexican army’s victory at the Battle of Puebla on the 5th of May back in 1862 — takes runners onto the streets of this small community in the Snoqualmie Valley, which will be familiar to fans of filmmaker David Lynch’s work, as he shot many of the exterior scenes for his famed 1990s television show “Twin Peaks” both here and in the nearby towns of Fall City and North Bend, Wash.

Runners in the half marathon — which, along with the 10K race, is designed as a benefit and fundraiser for the Histiocytosis Association of America, a nonprofit organization that helps to fight this rare blood disease whose main victims are children under the age of 10 — follow what is roughly an out-and-back loop course for the race, which is largely fast and flat except for a few rolling hills throughout the route.

The USATF-certified course starts and finishes on the campus of Snoqualmie’s Mt. Si High School, taking runners first out along Park Street and then onto the Meadowbrook Parkway for what is roughly a V-shaped stretch for the first mile or so of the race.

Runners turn next onto Falls Avenue and head northwest, and then turn next onto Southeast Fall City Snoqualmie Road, which heads northward and westward up into Fall City.

Runners in the half marathon instead turn off onto Stearns Road and cross the over Snoqualmie River for the next section of the race. The next several miles feature some of the race’s most scenic stretches, as runners make their way for the next few miles along Reinig Road, running along the banks of the river for most of the way.

There’s a few turns at the middle portion of the race along 428th Avenue, 92nd Street, 436th Avenue and 438th before runners hit the turnaround point, and then head back along the route they’ve just run.

The course brings runners all the way back to the Mt. Si High School campus, where they finish on the track inside the track and field facility.

Race Weather & Climate

Nestled among the Snoqalmie Valley here in western Washington State, roughly 30 miles east of Seattle, the small town of Snoqualmie typically experiences cool to moderatley warm weather conditions in the late spring season, and generally drier weather in the late spring than in the winter, when precipitation is much heavier.

On race day (May 5), the average low is 41ºF and the average high is 61ºF.

Past Results

Course Map

See the race route map for the Cinco de Mayo Half Marathon here.

Starting Time

  • 8:30 AM – half marathon
  • 8:45 AM – 10K


  • $50 – $75 for the half marathon
  • $30 – $40 for the 10K


To reserve your spot in the 2018 running of Snoqualmie’s Cinco de Mayo Half Marathon or 8K race, register online at here.

Official Race Website


Ever run in the Cinco de Mayo Half Marathon? Share your impressions here, or post your review in the Comments below.

See more races in: May, Washington

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