Races

San Diego 100

Lake Cuyamaca, CaliforniaApril

Lake Cuyamaca loop. Four county mountain zones. Looks tame on paper. Rocks, roots, heat, and 15,600 feet of climbing say otherwise.

100 mi+15,600 ft-15,600 ft32 hours3,000 ft to 6,000 fttech 9/1016 stationsWestern States qualifierPCT sectionsdeceptively hardApril
Distance100 mi
Gain+15,600 ft
Loss-15,600 ft
Altitude3,000 ft to 6,000 ft
Technicality9/10
Air40°F to 95°F
Gradient profile
  • Start4,645 ft
  • High6,411 ft
  • Low3,672 ft
  • Finish4,646 ft

The cruxNoble Canyon and exposed PCT ridges in afternoon heat

Course DNA

The Course

Loop from Lake Cuyamaca through Cuyamaca Rancho, Anza-Borrego edges, Noble Canyon, Mt Laguna, and Pacific Crest Trail. About 90 percent singletrack. Fifteen thousand six hundred feet gain and loss. Low 3,000 feet. High 6,000 on exposed ridges. Sixteen aid stations with drop bags at eight.

The Work

Heat training non-negotiable. Technical foot speed on rocks and roots. Back-to-back long runs on rocky descents. Qualifier: 50 mile under 13 hours or 100K/100 within cutoff.

Kit

Mandatory gear per participant guide. Sun kit and warm layer for night ridges. Poles help on long climbs. Blister kit early.

Race Day

Friday 6:00 am start. Strict aid cutoffs enforced. Eat before the hot afternoon. Wind chill on ridges at night. Finish by Saturday 2:00 pm.

Results

San Diego 100 finish lines.

Official siteBack to racesPredict your timeTrain for this raceCheck readiness