San Diego 100-Mile Endurance Race
Trail Running covering 160.9 km with up to 3,000 m D+ in Del Mar (California, United States)
San Diego 100-Mile Endurance Race is an endurance sporting event in Del Mar, California, US focused on Trail Running. First held in 2003, the event is an established fixture on the endurance calendar. It is part of UTMB Index Races. Key features include High Altitude, Mountain, Nature & Off-Road, Seaside & Coast.
The competition program features Trail 100 mi (160.93 km, +3,000 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (sandiego100.com).

Event characteristics
Races & distances (1)
| Competition | Discipline | Distance | Elevation gain | Altitude range | Course type | Course & profile |
|---|---|---|---|---|---|---|
| Trail 100 mi | Trail Running | 160.93 km | +3,000 m | 8 m - 1,268 m | Loop course | Route & profile |
Course route & map
Elevation profile & course telemetry
Altitude from 8 m to 1,268 m above sea level (+3,000 m D+, -3,000 m D-)
Frequently asked questions (FAQ)
When and where does San Diego 100-Mile Endurance Race take place?
San Diego 100-Mile Endurance Race takes place in Del Mar, California, US (start area at coordinates 32.9595° N, 117.2653° W). The exact date for the next edition is currently open and will be announced by the organizer.
What races and distances are offered at San Diego 100-Mile Endurance Race?
The competition program features Trail 100 mi (160.93 km, +3,000 m D+). The competitions belong to Trail Running.
What is the course layout and elevation profile for San Diego 100-Mile Endurance Race?
The main competition (Trail 100 mi over 160.93 km) is designed as a loop course featuring +3,000 m of elevation gain and -3,000 m of elevation loss, ranging between 8 m and 1,268 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.
Where can I find registration and official race rules for San Diego 100-Mile Endurance Race?
Official race regulations, course details, and registration information are provided on the organizer's website (sandiego100.com).