Annadel Half Marathon
- When
- Sat, Apr 18, 2026, 12:00 AM
- Where
- Santa Rosa, US
- Distances
- 5K · 10K · Half Marathon
- Terrain
- TRAIL
- Price
- 60.83–130.38 USD
- Elevation gain
- 519 m
- Typical weather
- Cool
- Organizer
- Annadel Half Marathon
About
An out-and-back 5km on a rolling gravel fire road that climbs gently into Annadel State Park, delivering a compact but hilly route with roughly 192 m of elevation change. The course is run cup-free with refill stations and supports local park stewardship through a volunteer-run nonprofit model. Race entry includes an event shirt and finisher medal with post-race snacks and beverages.