Oct 05, 2018 at 8:00 AM

Sonoma Ultra

3000 Los Alamos Rd

Santa Rosa CA, 95409


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Entry Fee $65
(Lowest or Early Registration)

Entry Fee 2 $105
(Highest or Late Registration)

Prize Money: no


  • 13.1M
  • 50K

Type: Ultra

Percent of the course on un-paved trails: 95%

First Year of the Event: 2015

Men's Record: Yuri Gonzaga 4:58:00

Masters Men Record: Bob Shebest 5:15:05

Women's Record: Arianne Buser 7:09:33


With well over 9,000 ft of elevation gain, the Sonoma ULTRA arguably stands as one of the toughest 50K’s in California. The half-marathon, not to be outdone, also holds its own boasting nearly 4,000 ft of gain and tough, grinding climbs. Nestled in the hills above Kenwood, Hood Mountain Regional Park and Sugarloaf Ridge State Park feature amazing scenery and an extensive network of trails to explore. These courses are not made for achieving personal best times and will prove to be a challenge for even the most accomplished runners, but what they lack in speed they more than make up for in stunning vistas, rugged ground, and elevation gains to assure participants the satisfaction that comes from completing a strenuous day on the trails.


Race event photo
Race event photo


Past Event Dates

Held on Oct 05, 2018

Held on Oct 06, 2017

Held on Oct 01, 2016

Held on Oct 03, 2015

Event Results