Sean O'Brien 100K

Index card: facts and a plan, no score. RaceWorth scores only the fly-for-this catalog.

Malibu, California, United States

Index card · facts and a plan

The card

Sean O'Brien 100K is based in Malibu, California. The 100K covers about 99.9 km with roughly 4017 m of elevation gain. The next edition is listed for 2027-01-30 with a 5:30 AM start. Published aid includes ZUMA EDISION RIDGE MTWY #1 (mi 16.1), ZUMA EDISON RIDGE MTWY #2 (mi 32), 100K TURNAROUND - BULLDOG (mi 47.5), PIUMA CREEK (NO AID) (mi 59.5), FINISH LINE (mi 61.7), ZUMA EDISION RIDGE MTWY #1 (mi 16.3). Entry is first-come at about $50-$323. An official course map or GPX is posted on the race site.