In 297 days · Sat, Jul 10, 2027
Don't let race day sneak up
One email during race week. That's it.
When
Saturday, July 10th, 2027
Where
Harvey West Park (Friendship Picnic Area), Santa Cruz CA
Distances
Half · Ultra · Marathon
Typical weather
55–75°F · low rain risk
See last 10 years
On this date: rain 0 of the last 10 years
2026
53–76°F
dry
2025
54–75°F
dry
2024
55–77°F
dry
2023
55–74°F
dry
2022
57–71°F
dry
2021
59–82°F
dry
2020
55–80°F
dry
2019
58–77°F
dry
2018
59–90°F
dry
2017
56–77°F
dry
Best months to race in California →
About this race
San Lorenzo River Trail Run
Date and Location
- Date: July 10, 2027
- Location: Harvey West Park (Friendship Picnic Area), Santa Cruz, CA
- Event Link: San Lorenzo River Trail Run
Race Description
- Experience: Run through 300 foot tall, 1500 year-old Coastal Redwoods.
- Scenery: Lush stream canyons, open meadows, pine and oak forests.
- Terrain: High dry chaparral-covered ridges.
- Crossings: The Half Marathon, 30K, Marathon, and 50K events cross the San Lorenzo River multiple times!
Course Measurement
- Accuracy: Distances are accurately measured.
- Technique: Using a Rolatape® surveyor's measuring wheel.
Course map
Hotels for race weekend
Live prices near the start line, Jul 9 – 11, 2027.
Train with a club
Run clubs near Santa Cruz to train with before race day.
See all run clubs near Santa Cruz →
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