Shamrock Half Marathon Run Fest presented by Toyota

05/29/2026

Leave it all on the course.

05/27/2026

Thousands of reasons why this city runs. ☘️

05/25/2026

Rose City Track Club didn't come to play, fastest 8K female team in the city. 🌹🏁

05/22/2026

Join in the crowd, register now to get the biggest savings of the year, click the link in our bio here

05/20/2026

This running community is what makes Shamrock so much fun! 💚

05/18/2026

What kept you going on race day when it got hard on course?

05/15/2026

2026 was truly the collaboration of the year with Doernbecher Children’s Hospital. From the Doernbecher Leprechaun Lap bringing hundreds of kids out to run, to an awesome patient-designed medal, and the incredible hospital team showing up in full force in the Teams Village, this partnership made a huge impact on our community.A huge thank you to all the runners who donated throughout the year and filled the expo toy bins with generosity. Between participant donations and 50% of proceeds from the Doernbecher Leprechaun Lap, together we raised $10,352.00 for the Child Life Therapy Program. Every dollar and toy donated will help bring comfort, support, and joy to children and families receiving care. If you haven't heard of the Child Life Therapy Program offered at Doernbecher, we encourage everyone to check out the work they are doing.Thank you for being part of something so meaningful. We’re excited to continue growing this partnership in 2027 and donations are already open in the registration flow!

05/15/2026

Cherry blossoms and race day energy, this half marathon course takes you through Portland's most iconic spots

05/13/2026

Liam the Leprechaun bringing the luck of the Irish to every runner who needed it most. ☘️

05/11/2026

05/08/2026

Portland showed up and put in the work.