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Shamrock'n Half Marathon

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

Runner Favorite93

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

PR FriendlyDestination Worthy

Atmosphere

Big Crowd EnergySpectator SupportParty FinishWell OrganizedWell Supported

Course

Fast FlatScenic RouteWell Marked

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.

Logistics

Race Day

Sunday, March 14, 2027

Start Time

TBA

Start Location

Sacramento, CA

Directions

Course Info

USATF Certified

Course 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.

Quality Score

Runner Favorite93
Methodology
Heritage20/20

19 years running

Size15/15

~3,074 finishers a year

Momentum5/5

growing or steady

Loyalty20/20

28% returning runners

Course & details12/15

USATF certified · 7 photos

National draw8/10

runners from 22 states

Front-pack speed5/5

winner 1:06:33

Weather8/10

typical high 63°F

Race Day Weather

5-year historical avg

Start (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

10%
25%
75%
90%
0:45p50 median ≈ 2:155:35

Turnout by year

20172026

'17'18'19'22'23'24'25'26
See full results

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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