Date / Time: Saturday, February 3, 2018 at 6:00 AM
Race Distance: 100 kilometers
Location (Start / Finish): Malibu Creek State Park, Calabasas, CA
Race Day Temperature at Start (High / Low Avg.): 69 / 43 F
Sunrise / Sunset: 6:49 AM / 5:28 PM
Race Cutoff (Hrs.): 16
Course Layout(Map): Lollipop Out and Back
Terrain: A mix of single track and dirt roads with mud and water crossing through the hills of Malibu.
Elevation Change (Ascent / Decent): 26,000 ft. (13,000 ft. / 13,000 ft.)
Altitude Above Sea Level (Min. / Max.): 75 ft. / 2,400 ft.
Number of Aid Stations (Max. distance in miles between A.S.): 8 (8.6 mi.)
Course Record (M/F): 8:24:35 Christopher Wehan (2017)/ 9:38:17 Courtney Dauwalter (2018)
Prerequisites / Lottery / Trail Work Req.: No / No / No
Qualifying Race for: Western States 100
Race Series: N/A
Race Director: Keira Henninger
Year Established: 2014
Other Race Distances: 26.2 mi / 50k / 50 mi.
Fun Fact: The race was named after one of R.D. Keira Henninger’s best friends, Sean O Brien. He created the route/course, and was a huge inspiration for the race.
Nearest Airports (HRs): Los Angeles, CA (1), Santa Ana, CA (2)