Registration is closed
Registration opens
June 1, 2025 12:00 AM
Malibu Creek State Park
1925 Las Virgenes Road
Calabasas, CA 91302
OPTIONAL BIB PICKUP
FRIDAY, JANUARY 30
3 p.m. - 6 p.m.
Pressed Juicery Westlake LA 2728 Townsgate Rd Ste 4 Thousand Oaks, CA 91361
*Get a $10 Pressed gift card when you pick up your bib Friday*
Sean O'Brien 100k is a qualifier for the Western States Endurance Run.
The Sean O'Brien 50 Mile is a Sterling Silver Ticket Race for Angeles Crest 100.
Malibu Creek State Park
1925 Las Virgenes Road
Calabasas, CA 91302
OPTIONAL BIB PICKUP
FRIDAY, JANUARY 30
3 p.m. - 6 p.m.
Pressed Juicery Westlake LA 2728 Townsgate Rd Ste 4 Thousand Oaks, CA 91361
*Get a $10 Pressed gift card when you pick up your bib Friday*
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.
2022 100k | 50 Mile Results results
2015 Race Photos. Big thanks to Stepahnie Plomarity providing us with the photography.
2015 Race Photos. Big thanks to Stepahnie Plomarity providing us with the photography.
