Annadel Half Marathon

About this race

Annadel Half Marathon

Annadel Half Marathon is scheduled for Apr 17, 2027 at 12:00 PM PDT in Santa Rosa, CA. The listed distance is Half Marathon, 10K, 5K. This listing was most recently checked against Race Roster data on July 22, 2026.

What to verify before registering

Use the official race page to confirm the start time, exact venue, entry fee, registration deadline, packet pickup, course surface, elevation, time limit, age rules, stroller or pet policy, parking, transfers, refunds, and any schedule changes. The organizer’s page is the final source for operational details.

Planning for a spring race in Santa Rosa

April weather and course conditions can change quickly. Review the forecast and organizer updates close to race day, plan your clothing and hydration for the conditions, and allow extra arrival time for parking, restrooms, bib pickup, and the walk to the start area.

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