We're thrilled to congratulate the Shamrock'n Half Marathon in West Sacramento, California, on earning the #3 spot in California on the HalfRuns Editors' Choice 2026 list. It's a well-earned nod for a race that keeps runners coming back.
Why did our editors pick it? The numbers tell the story: 28% of last year's runners had run it before. A March favorite in the Sacramento area, it draws runners from 22 states, sees about 3,100 finishers a year, and runs on a USATF-certified course. More than a quarter of the field being repeat runners says everything about the experience.
HalfRuns is building a community for half marathon runners and collecting the best races across the country. See where Shamrock'n lands and explore the rest of our picks in the Best Half Marathons in California.