Oregon · Half Marathon · 15K · 8K
Shamrock Run Portland
Shamrock Run Portland is a half marathon, 15K, 8K and 5K event held in Portland, Oregon. Its next confirmed date is Sunday, March 14, 2027. About 25,000 runners take part across all distances.
- Race day
- March 14, 2027
- Location
- Portland, OR
- Field size
- ~25,000 runners
Race details
- Date
- Sunday, March 14, 2027
- Location
- Portland, Oregon
- Distances
- Half Marathon, 15K, 8K, 5K
- Field size
- About 25,000 runners
- Course
- Rolling urban
- Registration
- shamrockrun.com
- Official website
- shamrockrunportland.com
Registration, course & weather
- Registration status
- Open
- Start time
- 7:20 AM PDT
- Course profile
- Loop course; Road surface
- Typical race-day weather
- about 38°F at the start, 82% humidity, 4 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 2, 2026)
About the Shamrock Run Portland
A massive St. Patrick's Day celebration through downtown Portland and the waterfront, offering five distances and drawing tens of thousands of runners and walkers each March. It is the single largest multi-distance running event in Oregon.
Rankings and notes
- Rankings and awards
- Portland's oldest and largest running event; one of the largest St. Patrick's Day races on the West Coast; historically a top-3 race in the Western US by participation
- Notes
- One of Oregon's largest running events.
More half marathons in Oregon
Coming up next, by confirmed date.
More races in Portland
More upcoming races in Oregon
Keep exploring
- All races in Oregon
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- 10Ks in Oregon 29 upcoming races
- Half Marathons in Oregon 26 upcoming races
- Marathons in Oregon 8 upcoming races
- Running in Portland 13 upcoming races
- 5Ks in the United States 6,000 upcoming races
- Half Marathons in the United States 1,668 upcoming races
- Spring Half Marathons
- March Half Marathons
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- Half Marathons in California 190 upcoming races
- Half Marathons in Washington 49 upcoming races
- Half Marathons in Nevada 35 upcoming races
- Half Marathons in Idaho 25 upcoming races
Guides from the RaceRove blog
- 8 min read How to Choose the Best Half Marathon for a PR, Racecation or 50-State Challenge The best half marathon depends on what you want from it. How to choose a course for a personal record, a race worth travelling for, or an efficient stop on a 50-state challenge.
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
- 9 min read How to Run a Race in All 50 States How to plan a 50-state running challenge: set your own rules, group states into trips, build a calendar around the seasons, budget for it and keep track of every finish.
- Blog All guides Planning advice for finding, choosing and travelling to races.
Shamrock Run Portland: common questions
- When is the Shamrock Run Portland?
- The next confirmed date is Sunday, March 14, 2027.
- Where is the Shamrock Run Portland held?
- In Portland, Oregon.
- What distances does the Shamrock Run Portland offer?
- Half Marathon, 15K, 8K and 5K.
- How many people run the Shamrock Run Portland?
- About 25,000 runners across all of its distances. That figure is an estimate of the field size, not an entry cap.
- How do I register for the Shamrock Run Portland?
- Registration is handled by the organiser at shamrockrun.com. Entry fees, caps and deadlines are set there.
- Is registration open for the Shamrock Run Portland?
- Yes — registration is open. Listed fee for the longest distance, $95 (from shamrockrun.com, checked October 2, 2026).
- What time does the Shamrock Run Portland start?
- 7:20 AM PDT.
- What is the course like at the Shamrock Run Portland?
- Loop course; Road surface.
- What is race-day weather usually like at the Shamrock Run Portland?
- about 38°F at the start, 82% humidity, 4 mph wind (based on the 2026 race day, measured near the city center rather than the exact start line; Open-Meteo, checked October 2, 2026).
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.