Cheers to 40 Years!

Plan Your Shamrock Weekend!


Need to know the schedule and courses on Sunday?  Click here!

Want to register?  You can register through Saturday, 3/17 (online registration closes at noon, and in-person registration at the Shamrock Fitness Fair closes at 3pm).  Click here to register now!

Need to change a distance?  Click here!

Need directions to the Fitness Fair or the race site?  Click here!

Want your finisher photos?  Click here!


Meet Liam the Leprechaun!

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

Liam will be at the Shamrock Fitness Fair on Friday and Saturday, March 16-17, and at the starting line for the Leprechaun Lap at the Shamrock Run on Sunday, March 18!

The Shamrock Fitness Fair is coming up! 

It’s so much fun, you won’t want to miss it.  PLUS – you need to pick up your bib and participant shirt!

Shamrock Fitness Fair
Friday March 16, 11am-7pm
Saturday March 17, 9am-3pm

Happy Hour, Friday, 4:30 – 6:00 pm, hosted by Widmer and Bob’s Red Mill (beer and nacho popcorn!)

Oregon Convention Center
Exhibit Hall B

Featuring over 60 exhibitors, Friday happy hour hosted by Widmer and Bob’s Red Mill (4:30-6 pm), exclusive Shamrock Run merchandise, and Leprechaun Lane activities for kids!

ALL individual participants MUST pick up their race bib and shirt at the Shamrock Fitness Fair (there will be no race day packet pick up)!


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.