San Lorenzo River Trail Marathon
2027 at a glance
- Entry open
- Race day
- ResultsAfter race day
- Race day
- Jul 10, 2027 Saturday
- Distance
- 26.2 mi Marathon
- Entry
- Open
- Latest results
- 2026
Quick facts
- Redwoods up to 300 feet tall
- Several San Lorenzo River crossings
- About 4,350 feet of gain
- Nine hour time limit
Course
The marathon runs the half marathon's out-and-back twice, on singletrack and dirt road with no pavement. It passes coastal redwoods, stream canyons, meadows and chaparral ridges, with aid every 6 to 7 miles and a 4 hour 15 minute cutoff at 13 miles.
Race-day weather
Mid-July in Santa Cruz often starts with coastal fog that burns off, and the exposed chaparral ridges can be hot by afternoon.
About the race
This July trail day in Santa Cruz offers a 10K up to a 50K, with free parking at Harvey West Park. Results go back to 2010, and finishers in every distance receive a custom medal.
Dates and results by year
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FAQ
When is the San Lorenzo River Trail Marathon?
The 2027 San Lorenzo River Trail Marathon is on Saturday, July 10, 2027.
Is registration open for the 2027 San Lorenzo River Trail Marathon?
Entry for the 2027 San Lorenzo River Trail Marathon is open, as of Nov 15, 2026. Entry details: runsignup.com.
Where can I find the San Lorenzo River Trail Marathon results?
The 2026 results and earlier years are on the results page.
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