Shamrock’n Half Marathon, 5K, 10K and Leprechaun Dash
West Sacramento, California, United States
Mar 13-14, 2027 - Saturday to Sunday
5k, 10k, Half-marathon
Video
Race Information
Shamrock’n Half Marathon, 5K, 10K, and Leprechaun Dash weekend's Saturday race promises to be a day of FUN! Run/walk the 5k or 10k and then enjoy watching the little ones chase a Leprechaun for the 1/2 mile Dash. Rock to the music on the course, finish on the field and enjoy post-race festivities, beer, and food. It's a party you don't want to miss!
For the Half Marathon the following day, Sunday, the 13.1-mile run is filled with fun! Live music, crazy costumes, on-field finish, post-race beer, and food - it's a party you don't want to miss!
Take the DOUBLEHEADER challenge and sign up for the Saturday 5K or 10K and the Sunday Half Marathon TO get a DOUBLEHEADER medal and an exclusive DOUBLEHEADER technical shirt!
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Run Pick of the Month - Napa to Sonoma Wine Country Half Marathon & Rosé 5K
Your ultimate Wine Country runcation awaits in July 2026!
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Trade the concrete jungle for rolling vineyards and uncork a new running personal best at the Napa to Sonoma Half Marathon & Rosé 5K. This is more than a race, it's your perfect run-cation escape.
Choose your vintage: Take on the picturesque Rosé 5K around historic Sonoma Plaza, or conquer the world-class Half Marathon that winds point-to-point from Napa, past 30+ iconic wineries and beautiful ranches.
Experience an unforgettable, wine-centric finish in Sonoma Plaza, complete with a celebratory post-race festival featuring tastings from local wineries!.
Sign up now and experience the run-cation that runners repeatedly cite as a favorite!
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Race Facts
Race Size: 1,000 - 5,000
Elevation: Fast and Flat
Course Type: Road
Boston Qualifier: No
Kids Run: Yes
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