San Diego 100 Mile Running Race
Trail in United States, San Diego
About
A scenic and challenging 100-mile endurance race in the Mt. Laguna area and along the Pacific Crest, Noble Canyon, and Lake Cuyamaca Trails.
Catering & aid stations
On-course Verpflegung / aid stations provide food and drink (not Pacemaker lines).
Pacers
Pacers are listed in the 'Renntag für Laufende' schedule with target times per start wave and Pacerflaggen; registration includes a pacing option.
Results
View official resultsTypical weather in San Diego
Monthly averages based on historical data (2000–present).
What's included in entry
- 6 hours volunteer work or $105 donation
- Pacers allowed with flaggen and target times
- 50-mile qualifier accepted
- 50% refund if canceled by March 15
FAQ
What are the qualification requirements to enter the 2027 event?
Applicants must have completed an official 50-mile race in 13 hours or less or a 100k or 100-mile race between January 1, 2025, and April 1, 2027.
Is there a discount for military and first responders?
Yes — 10% discount for Active Military and First Responders; contact the organizers for a discount code.
What is the refund deadline?
The deadline for a 50% refund is March 15.
How can I volunteer or offset my registration?
Complete 6 hours of volunteer work within the year prior to the race or donate $105 to the San Diego 100 TrailFit Program.
Are pacers allowed?
Yes — pacers are permitted and are listed on the Renntag schedule with target times and Pacerflaggen.
What is the registration timeline for 2027?
Registration opens January 1, 2027, on a first-come, first-served basis up to 300 entrants; if full, a waitlist is kept.
Last updated: Jun 6, 2026, 12:19:07 AM
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