Feeling Lucky? Portland’s Shamrock Run Fest is back

Published 4:30 am Tuesday, March 10, 2026

Now in its 47th year, the annual Shamrock Run Fest race returns to the waterfront this month with more than 19,000 participants expected to take part in the 2026 event. (Matt Flynn Parker/Motiv Sports)

Every spring, thousands of runners lace up and turn downtown green for one of Portland’s most recognizable traditions: the Shamrock Half Marathon Run Fest.

Now in its 47th year, the annual race returns to the waterfront this month with more than 19,000 participants expected to take part in the 2026 event. Founded in 1979, the celebration has grown into Portland’s largest running event, combining a full weekend of races with a lively St. Patrick’s Day–inspired festival atmosphere.

A race for every kind of runner

Race weekend centers around Tom McCall Waterfront Park, where the half marathon begins and ends while winding through central Portland along a course known for its mix of city views and gentle hills.

But the Shamrock Run Fest isn’t just for half marathoners. The event offers several distances designed for runners and walkers of all levels, including:

Half Marathon (13.1 miles)
8K (4.9 miles)
5K (3.1 miles)
Stride Walk (3.4 miles)
Doernbecher Leprechaun Lap kids run (0.4 miles)

The Shamrock 5K typically draws the biggest crowd, welcoming thousands of runners and joggers each year. Meanwhile, the fast and flat Shamrock Showdown 8K adds a competitive edge — with top finishers earning the famously Portland prize of their weight in beer.

For those who prefer a festive stroll, the Shamrock Stride Walk has become its own tradition, known for participants who show up in full St. Patrick’s Day costumes.

Young runners also get their moment at the Doernbecher Leprechaun Lap, where kids receive a medal featuring artwork created by 13-year-old Maddie, a former patient at OHSU Doernbecher Children’s Hospital.

More than a race

Beyond the miles, the Shamrock Run Fest is designed as a full celebration of Portland’s running culture. In partnership with Kells Irish Restaurant & Pub, the finish line transitions into a post-race party featuring live Irish music, craft beer and a festive St. Patrick’s Day scene.

The race also partners with Portland Track, a nonprofit that works with local run clubs and teams to organize race-weekend activations and help strengthen the city’s running community.

Giving back to Portland families

The event has also become a major fundraiser for local causes. This year, donations will benefit the Child Life Program at OHSU Doernbecher Children’s Hospital, which supports pediatric patients and their families during hospital stays.

Since its founding, the Shamrock Run Fest has donated more than $850,000 to the hospital.

Another initiative, SheRock, launched in 2024 to encourage girls’ participation in running. Proceeds support three Oregon nonprofits: She Flies, Girls on the Run and Wildwood Running, all focused on empowering girls and young athletes through sports.

Greener race weekend

Organizers said they are also expanding sustainability efforts for this year’s event. Race weekend will feature eco-friendly materials, improved recycling programs and other initiatives designed to reduce the event’s environmental footprint while continuing to celebrate Portland.

IF YOU GO

What: 2026 Shamrock Run Fest

When: Sunday, March 15

Where: Southwest Naito Parkway and Pine Street

For more information, and to register, visit shamrockrun.com.