Cheers to 40 Years!

40th Anniversary Race Photos! 

FinisherPix will be at the Shamrock Run to capture all your race memories.  Your personal race photos will be available at, 24-48 hours after the event.

Take advantage of pre-order pricing – just $9.95 for all your event photos ($14.99 for half marathon)!  Pre-order now and SAVE!

Shamrock Half is Filling Fast…

Don’t miss your chance to run in the Shamrock Half Marathon!

Spots are filling fast, and we’re already over 75% full.  Register now!

New in 2018 –Liam the Leprechaun! 

In honor of the Shamrock Run’s 40th Anniversary, we are pleased to announce the arrival of Liam the Leprechaun!

Be on the lookout to take your selfie with Liam during Shamrock weekend, or you might just spot him around town, too!

Check out our 2018 Shamrock merchandise!

You look good in green!  Train the Irish way with these great apparel items for Shamrock ‘18.

Shop now!

Registration for 2018
Registration is Now Open!

The adidas Shamrock Run features a wide range of distances for every level of runner including a 5k, 8k, 15k and Half Marathon, plus a 1k Kids Leprechaun Lap and a 4-mile Shamrock Stride!

Register Now
Shamrock Course Map

All of Shamrock's iconic courses start in Waterfront Park near SW Oak and Naito Parkway and run through the center of downtown Portland and feature slightly downhill final sections. The 15k and half-marathon routes include the challenging, and scenic, Terwilliger hills. The new Shamrock Stride 4-mile walk boasts city views and a river walk including the Tilikum Crossing and Steel Bridges.

See All Course Maps

Event Partners

We’re proud to partner with these great brands to bring you an incredible event experience. Whether you’re drenched in sweat, dressed in costume or immersed in music, you've worked hard to get there and deserve to have the best time possible.