Sean O'Brien Trail Runs

This edition is sold out
JAN
30
2027
Trail running at Malibu Creek State Park on Jan 30, 2027 with multiple marked courses from 30K to 100K; carry your own hydration.
Sat 30 Jan 2027
100 kilometers 50 miles 50 kilometers Marathon 30 kilometers

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Sean O'Brien Trail Runs - Malibu Creek State Park, Jan 30, 2027

Sean O'Brien Trail Runs is a trail running event in the Santa Monica Mountains at Malibu Creek State Park in Calabasas, CA, held on January 30, 2027. Courses run on singletrack and fire road and are described as well-marked. The event includes multiple distance options and documented elevation for each course.

Distances offered

  • 30K - 19.4 miles; 3,894 ft gain; 2,217 ft high
  • 50K - 32.1 miles; 6,719 ft gain; 2,273 ft high
  • Marathon - 27.2 miles; 5,692 ft gain; 2,257 ft high
  • 50 Mile - 49 miles; 11,492 ft gain; 2,404 ft high
  • 100K - 61.7 miles; 13,179 ft gain; 2,408 ft high

Logistics note that starts are staggered by distance and bib pickup times and location are listed as TBA. Participants are instructed to carry their own hydration. The event is noted as a Western States Endurance Run and Angeles Crest qualifier. Athlete guides and archives of past results and race-day photos are available for reference. Visit the organization's website for the most recent information.

Events nearby

Invite only 69 miles in the Santa Monica Mountains with about 13,000 ft of climbing, three load categories, mandatory checkpoints and an out and back AllTrails route.
A community Turkey Trot at Santa Clarita Central Park on 11/26/2026 featuring a 5K cross country course and a 1K kids run, with proceeds supporting club programs.
College of the Canyons Turkey Trot in Santa Clarita features a three-mile campus and trail course, a Kiddie K, live results, free parking, t-shirts and medals for top finishers.
Trail running at Point Mugu State Park with 30K, 50K and 50 mile courses on rugged coastal singletrack and major elevation gain.
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