
Shamrock'n Half Marathon
The Shamrock'n Half Marathon offers a festive St. Patrick's Day celebration with a scenic course through Sacramento.
Race Date
Mar 14, 2027
Location
Sacramento, CA
Quick facts
- Date
- Sunday, March 14, 2027
- Location
- Sacramento, California
- Distance
- Half marathon (13.1 mi)
- Course
- Point to Point
- Terrain
- Road
- USATF certified
- Yes
- Finishers on record
- 71,919
Highlights
Good For
Atmosphere
Course
The Experience
The Shamrock'n Half Marathon, first run in 2006 and now in its 19th edition, transforms West Sacramento into a St. Patrick's Day celebration. With a median field size of around 3,074 finishers and a growing trend, this race draws participants from approximately 22 states, highlighting its appeal as a destination event. About 28% of runners return year after year, a testament to its enduring popularity.
The course winds through iconic Sacramento landmarks, crossing the Tower Bridge twice and tracing the Sacramento River. Runners will experience parts of Old Sacramento, potentially including cobblestone sections, and pass through areas like Land Park and the Fab 40s before finishing inside the baseball stadium. While some reviews mention "rolling hills" and "neighborhood areas," the overall elevation gain is minimal, with a net drop and minimal start/finish separation suggesting a potentially fast course, suitable for PR attempts with proper training.
The atmosphere is festive and high-energy, with bands and cheering groups adding to the St. Patrick's Day spirit. Despite some challenges with parking, the production is generally rated highly, with easy packet pickup, a fun stadium start/finish, and plenty of volunteers. Runners can expect a beautiful finisher's medal and post-race amenities, making it a memorable race day experience.
Race-provided description
Celebrate St. Patrick's Day with a Shamrock themed Half Marathon, 10K, 5K and Fun Run. 5K and 10K on March 14, half marathon on March 15.
Course Info
USATF CertifiedCourse Type
Point to Point
Terrain
road
Scenery
Urban, Lake River
Surface
Paved
Difficulty
Rolling Hills
Net Drop/km
-0.05 m
Separation
0.7%
USATF Certified Course
CA26006TEB · Shamrock'n Half Marathon 2026
Relatively flat with minimal net elevation change. Loop course — start and finish are close together.
Course Map
View Course Map
Download pdf
1 other map for this race
Quality Score
Runner Favorite9319 years running
~3,074 finishers a year
growing or steady
28% returning runners
USATF certified · 7 photos
runners from 22 states
winner 1:06:33
typical high 63°F
Race Day Weather
5-year historical avgStart (Low)
43°
Afternoon (High)
63°
Pleasant conditions — light layers at start, comfortable by finish
0.1"
Precipitation
11 mph
Wind
71%
Humidity
Historical Finish Times
How 71,919 finishers actually crossed the line across 19 years.
Most recent
2026
Total finishers
71,919
Median time
2:14:42
Latest turnout
3,703
States
48
Turnout by year
2017–2026
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the Shamrock'n Half Marathon?
The Shamrock'n Half Marathon is held on Sunday, March 14, 2027.
Where does the Shamrock'n Half Marathon take place?
It takes place in Sacramento, California.
What distances does the Shamrock'n Half Marathon offer?
The half marathon (13.1 miles).
Is the Shamrock'n Half Marathon course flat and good for a PR?
The Shamrock'n Half Marathon is a rolling hills, point to point course. The course is USATF-certified, so finish times can be used for qualifying.
How many people run the Shamrock'n Half Marathon?
HalfRuns has finish records for 71,919 runners who have completed the Shamrock'n Half Marathon.
HalfRuns editorial — independent, no paid placement.
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