Annadel Half Marathon

The Annadel Half Marathon is a non-profit fundraising event held in Sonoma County, featuring a challenging half marathon, a 10K, and a 5K race. Over the past 14 years, the event has successfully raised funds to enhance the beauty of the local park. The half marathon course is designed for experienced trail runners, offering stunning scenery with significant elevation gain.

The event promotes community involvement through sponsorships and volunteer efforts, making it one of the largest running events in the area. Registration for the 2025 event is currently open, inviting participants to join in this rewarding experience. Visit the organization's website for the most recent information.