100K Races in California
Browse 5 100k trail running and hiking routes in California. Distance range: 61.0 mi to 62.1 mi. Elevation gain: 9,611 ft to 11,792 ft. Each route includes terrain analysis, elevation profiles, and pacing recommendations.
Key Takeaways
| Route Name | Location | Distance | Elevation Gain | Type | Race Date |
|---|---|---|---|---|---|
| Miwok 100K | Mount Tamalpais State Park, California | 61.0 mi | 10,019 ft | race | — |
| Canyons 100K | Foresthill, California | 61.2 mi | 11,792 ft | race | — |
| Kodiak Ultra | San Bernardino National Forest, California | 61.4 mi | 10,038 ft | race | — |
| San Francisco Round (CA) | San Francisco, California | 61.9 mi | 9,611 ft | route | — |
| PCT CA Section K - Echo Lake to Hwy 80 | Placer County, California | 62.1 mi | 10,658 ft | route | — |
Frequently Asked Questions
How many trail races are in California?
There are 3 organized races and 2 self-supported routes available in California.
What is a 100K race?
A 100K race is approximately 60.9 to 63.4 miles in distance.
What is the average elevation gain in California?
The average elevation gain is 10,424 feet, with routes ranging from 9,611 to 11,792 feet.
Can these 100k routes in California be used for hiking?
Yes. 100% of these routes are on trail surfaces, making them suitable for both trail running and hiking. The terrain analysis and elevation profiles help hikers plan their adventures just as effectively as runners.
Are 100K races beginner-friendly?
100K race difficulty varies widely. Use the elevation gain and terrain analysis to assess each route. Races with lower elevation gain relative to distance and higher runnable percentages tend to be more beginner-accessible.
Want filters, map view, and route intelligence?
Browse with Interactive Map →