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 - Bay to Breakers
Get ready to be part of history! Bay to Breakers isn't just a 12K; it's the oldest consecutively run annual footrace in the world, held in May 2026.
A legendary staple of the City by the Bay since May 1912, this race has been interwoven into the very fabric of San Francisco, creating a wild, beautiful, and unforgettable celebration of life, community, and pure, unadulterated fun.
The classic 12K is amazing, but if you're looking for an extra push, you're covered with the Breakers Bonus 3K. Turn your run into an epic 15K challenge and make your Bay to Breakers experience even bigger, bolder, and wilder.
Lace up and get ready for a course that takes you through the most iconic, vibrant neighborhoods in the world. Click the button below to get all the details.
Don't just run a race, join a legend.
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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
Where to Stay
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