San Diego 100 Course Profile

Julian to Pine Valley, CA, California

• Distance: 100 miles
• Elevation Gain: 16,500 ft
• Elevation Loss: 17,500 ft
• High Point: 5,800 ft
• Low Point: 3,400 ft
• Time Limit: 32 hours
• Month: June
• Finisher Rate: ~65%

A challenging 100-miler through the desert mountains of San Diego County, running from Julian to Pine Valley. The course traverses chaparral, oak woodlands, and exposed desert ridgelines with summer heat adding to the difficulty.

Aid Stations

Name	Mile	Elevation	Crew Access	Drop Bag	Cutoff
Sunrise Highway	15	5,400 ft	Yes	Yes	—
Pioneer Mail	35	4,800 ft	Yes	Yes	14:00
Cibbets Flat	55	4,200 ft	Yes	Yes	20:00
Long Canyon	75	4,600 ft	Yes	Yes	26:00
Burnt Rancheria	90	4,000 ft	Yes	Yes	29:00

Course Segments

Segment	Miles	Terrain	Difficulty	Notes
Julian to Sunrise Highway	0–15	climb	moderate	Early morning climb through oak woodland.
Sunrise Highway to Pioneer Mail	15–35	rolling	moderate	Exposed desert ridges. Hydration critical.
Pioneer Mail to Long Canyon	35–75	mixed	hard	Long middle section. Heat management essential.
Long Canyon to Pine Valley	75–100	descent	hard	Final push through the desert night.

View the full interactive elevation profile, 3D course flyover, and race strategy tools on HARDN.