Pacifica Trail Run 21K, 10K, 30K & 50K

Saturday, July 8, 2017 • Pacifica, CA • Course Map

Organized by the local running and event organization Pacific Coast Trail Runs, this race takes runners through the challenging hills of Pacifica’s San Pedro Valley Park, which lies just a short drive from San Francisco to the north.

Run for the past three years through this scenic natural area, the Pacifica Trail Run usually sees between 200 and 300 runners cross the finish line each year in all four races combined, which include a 10K, 30K and 50K race in addition to the 21K — the half-marathon distance race.

The July Pacifica trail race is the third of three trail races that take place as part of Pacific Coast Trail Runs’ series in San Pedro Valley Park, with the other two races taking place in January and February.

Runners in the 21K race follow the route along the park’s Montara Mountain and Pedro Mountain trails. For the half marathon, while runners will encounter a low overall elevation change, the course is rarely flat, so they’ll need to be prepared for a challenging, up-and-down race through this mostly undisturbed mountainous area.

Though race organizers note that aid stations will be placed at regular intervals along the course (roughly every 9 to 11 kilometers), runners are strongly encouraged to carry a water bottle with them to ensure they stay well hydrated during the race. At the aid stations, they’ll have water in addition to plenty of fruit and salty snacks, and electrolyte sports drinks.

Race Weather & Climate

Located just over 14 miles south of San Francisco in Northern California, Pacifica typically sees weather typical of the San Francisco Bay area, with July temperatures that range between 71°F and 55°F. Rainfall is rare this time of year, averaging less than a 10th of an inch for the month.

On race day (July 8), the average low is 52ºF and the average high is 70ºF.

Past Results

Course Map

See the race route map for the Pacifica Trail Run Half Marathon here.

Starting Time

  • 7:30 AM – 50K
  • 8:00 AM – 30K
  • 8:15 AM – 21K (half marathon)
  • 8:30 AM – 10K


  • $65 for the 21K race, if registered before May 31, 2017
  • $75 after May 31


To reserve your spot in the 2017 running of the Pacifica Trail Run 10K, 21K, 30K or 50K race, register online at here.

Official Race Website


Ever run in the Pacifica Trail Run? Share your impressions here, or post your review in the Comments below.

See more races in: July, California

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