Sean O'Brien Trail Runs
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Sean O'Brien Trail Runs
Sean O'Brien Trail Runs is a trail running event held on January 30, 2027, at Malibu Creek State Park in Calabasas, CA, within the Santa Monica Mountains. The event offers measured courses across multiple distances and lists course mileage and total elevation gain for each distance.
Distances offered:
- 30K - 19.4 miles, 3,894 ft gain
- 50K - 32.1 miles, 6,719 ft gain
- Marathon - 27.2 miles, 5,692 ft gain
- 50 Mile - 49 miles, 11,492 ft gain
- 100K - 61.7 miles, 13,179 ft gain
The courses use singletrack and fire road terrain and are described as well-marked. Interactive course maps and elevation profiles are provided via the event mapping service. The event notes that participants must carry their own hydration, and it is identified as a qualifier for WSER and Angeles Crest.
Race logistics include bib pickup with times and location to be announced and an athlete guide for competitors. Distances have separate course details and elevation summaries for planning purposes. Visit the organization's website for the most recent information.
