Apr 02, 2023 at 8:00 AM

Annadel Half Marathon

393 Violetti Rd.

Santa Rosa CA, 95405


Entry Fee $60
(Lowest or Early Registration)

Entry Fee 2 $90
(Highest or Late Registration)

Prize Money: no


  • 10K
  • 13.1M
  • 5K

Type: Trail

Participant Limit: 600

Starting Elevation: 200

High Point: 1400

Percent of the course on un-paved trails: 100%

First Year of the Event: 2010


The Half Marathon course is a hilly, and technical course designed for the experienced trail runner looking for a challenge. Enjoy gorgeous scenery with green meadows, wild flowers, and variety of beautiful trees. The race starts at the Spring Lake swimming lagoon on a grassy field and winds through Spring Lake Park before climbing into Annadel State Park.The Annadel Half Marathon is a tough course with over 1,500 feet of elevation gain over rocky and rooted terrain. The 5k course is an out and back route starting at the swimming lagoon, heading up a gravel fire road slightly into Annadel State park.


Race event photo
Race event photo
Race event photo


Past Event Dates

Held on Apr 02, 2023

Held on Apr 10, 2022

Held on Apr 05, 2020

Held on Apr 06, 2019

Held on Apr 07, 2018

Held on Apr 08, 2017

Held on Apr 02, 2016

Held on Apr 11, 2015

Held on Apr 05, 2014

Held on Apr 13, 2013

Held on Apr 14, 2012

Held on Apr 17, 2011

Event Results

View 2016 Results

View 2015 Results

View 2014 Results