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Sean O’Brien 30K/50K/26M

Jan 31, 2026 at 5:00 AM

Malibu Creek State Park 1925 Las Virgenes Road, Calabasas CA, 91302, USA

Feature this race

Trail races in the middle of the Santa Monica Mountains. This will be a cupless race. No plastic! We will not have cups at the aid stations. You must be self sufficient and carry hydration.

Distance(s)
  • 100K
  • 26.2M
  • 30K
  • 50K
Starting Elevation
2739
Type
  • Ultra
Prize Money
no
Course Percentage
95% on un-paved trails
First Year of the Event
2014
Entry Fee(s)
$147 (Lowest / Early Registration), $323 (Highest / Late Registration)
Men's Record
Christopher Wehan (35)8:24:35
Masters Men Record
Bob Shebest (42)8:49:02
Women's Record
Courtney Dauwalter (32)9:38:17
Masters Women Record
Anita Ortiz (50)10:40:58

Event History

2026
Jan 31, 2026
2025
Jan 25, 2025View Results →
2024
Jan 27, 2024View Results →
2023
Jan 07, 2023View Results →
2022
Jan 08, 2022View Results →
2021
View Results →
2020
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2019
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2018
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2017
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2016
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2015
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