Shamrock Run Fest Portland

Shamrock Run Fest Portland is Portland, Oregon's most popular race, held every March around St. Patrick's Day, and the 2027 edition falls on March 14. The half marathon (13.1 miles) is the centerpiece, alongside an 8K, a 5K, a roughly four-mile scenic Stride Walk and the Lucky Lap for kids. The half runs through downtown Portland and climbs into the hills for panoramic views of the city, the Willamette River and its bridges. Start times are not listed in the available data.

Those hills are the thing to train for: put sustained climbs into your long runs and practice running downhill relaxed, since the descents cost more than most runners expect. Enthusiastic crowds and a festive Irish atmosphere carry the day, and the post-race festival brings live music and local craft beer.