RacesReviewed / Race Intelligence

2026 Shamrock Run Fest presented by Toyota

5K2026-03-15

The Shamrock Half Marathon Run Fest presented by Toyota is a celebration of fitness, community, and Irish culture, and it has been a Portland tradition since 1979.

RegisterOpen signupactive.com WebsiteOfficial race siteshamrockrunportland.com LocationPortland, ORRace start area

Choose your distance

Half marathon 5K 8K

Jump to

Runner Perspective

What runners say

Recent runner quotes and ratings from this race.

Runner score4.3 / 5

Reviews3 reviews

"Nearly 50 years of history and it shows. The Shamrock Run has everything you want from a community-backed race. The half marathon course has about 540ft of elevation which..."

Portland's best St. Patrick's Day tradition — fast, fun, fiercehalf marathon · advanced · Apr 2026

"This was my second year running Shamrock Run and it was a blast. The St. Patrick's Day atmosphere is real — lots of green, lots of shamrocks, some folks in full costumes. The..."

Hilly but fun — great St. Paddy's Day vibeshalf marathon · intermediate · Apr 2026

Current review averageLive runner ratings

4.3 / 5 · OverallAverage rating from saved runner reviews for the full race experience.

Course format

City 5k layout

Course geometry is still filling in, but the race format, location, and planning signals already make the day easier to read.

Elevation profile

Course profile still taking shape

5K runners can still use the weather, logistics, and race format to plan even while exact elevation detail catches up.

Pressure point

Race-morning execution

This looks more like a race where calm logistics and disciplined pacing matter more than one famous course feature.

Weather bias

Usually weather-dragged

Typical starts are around 43F, so even manageable mornings can still get more expensive later.

Free training plan

Build a free 5K plan for this race.

Keep race research first. When you want it, open a quick planner that uses the selected distance, the selected race date, and the course itself.

Course Profile

2026 Shamrock Run Fest presented by Toyota 5K course overview

Summary course view

This course section is built from a lighter course overview so you can understand how the race is likely to run.

Synced course focus

Mid-course

Mile 1.0 · 0 ft · Course intelligence will improve as GPX and logistics data land.

Course trace

This course view focuses on the best route information currently available.

Pressure model

Pressure points highlight where pacing or effort may change during the race.

What comes next

Use the course, weather, logistics, and reviews together to build your race-day plan.

Difficulty Meter

How hard is a 5K?

Planning read

77/100

Course detail: Moderate
Weather detail: Historical + forecast
Race-day detail: Moderate
Weather view: Live forecast

Weather read

Strong headwind penalty

Route-aligned wind gives you a quick feel for how the day may race before you dig into the full weather section.

Jump to weather analysis

Weather Analysis

2026 Shamrock Run Fest presented by Toyota 5K weather outlook

Forecast + history

Weather blends the live forecast with the race's historical weather patterns to help you plan.

Route-aligned wind

-4.6 mph

Interpretation

Strong headwind penalty

NOAA race-window forecast is live. Wind is scored relative to the course bearing where possible.

Course bearing 0.0 degAverage wind 5.0 mphDominant direction NNW

Estimated weather effect

+2.52%

Heuristic read

Major weather drag

Help score

-45

Historical profile

Historically weather-dragged

Based on 7 years of race-weekend weather in the archive.

Avg start temp 43.3FAvg wind 9.4 mphAligned wind -0.58 mph

Tailwind years

57%

Headwind years

43%

Helpful weather

14%

Forecasts use current race-area weather, and history looks at past race-weekend conditions to show what runners have typically faced.

Weather history

2025 race-weekend conditions

Race date

Mar 16, 2025

Avg temperature

46.6F

Avg wind

3.9 mph

Aligned wind

+1.04 mph

Mostly neutral year

+0.00% estimated finish-time effect · 18 hourly observations

Race zone

69F

Sunny

5.0 mph · NNW

City center

69F

Sunny

5.0 mph · NNW

Finish area

69F

Sunny

5.0 mph · NNW

Course Breakdown

Where the 5K shifts

Course rhythm

Active segment

Settle

This segment is a layout-safe placeholder until richer course data arrives.

Avg grade n/aFocused mile 1.0Pacing watchpoint

Race-Day Logistics

2026 Shamrock Run Fest presented by Toyota 5K race-day logistics

Planning basics

Race weekend

8 recorded years

The basic race structure is in place for planning.

Distance options

3 distances

This page can show the event correctly even when some race-day detail is still light.

Race-day planning

More details coming

Packet pickup, parking, support flow, and reunion details may still be limited.

Course Map

Route shape, city context, and key course moments in one view.

Map + course context

Map overview

This map gives you a race-area view and course orientation even when the full route is not available.

Highlighted point

Mid-course

Course intelligence will improve as GPX and logistics data land.

Mile 1.00 ftStart

What to watch

Use this map to get your bearings before race day and understand the general shape of the course area.

Course coverage

Detailed route geometry and extra overlays may still be limited for this race.

Why it matters

Portland, OR should still be easy to plan around, even when some course details are lighter than others.

Planning

Use the 5K at 2026 Shamrock Run Fest presented by Toyota as a planning target rather than a qualification race.

Open entry

Entry posture

Open entry

There is no qualification signal in the current event record.

Race framing

5K planning

The page emphasizes course, logistics, and weather rather than qualification standards.

2026 Shamrock Run Fest presented by Toyota official site Registration

Race History

Race history overview

Some history available

Past editions tracked

8

Recorded race years

Available

Current

Benchmarks

Growing archive

More historical context will be added here as the archive grows

In progress

Review Radar

Runner signal for 2026 Shamrock Run Fest presented by Toyota 5K

Runner reviews live

Course

67/100

Logistics

43/100

Crowd support

100/100

Aid stations

80/100

Finish area

87/100

Recommend

87/100

Your draft saves locally as you answer.

Common questions

FAQ

Question 1What is the course like at 2026 Shamrock Run Fest presented by Toyota?

Question 2Is 2026 Shamrock Run Fest presented by Toyota walker-friendly?

Question 3Where do I pick up my packet?

Question 4Is there parking at 2026 Shamrock Run Fest presented by Toyota?

Related race pages

More course-ready races to compare.

Sisters · OR · 5K

2026 Shamrock Run Fest presented by Toyota

Build a free 5K plan for this race.

Mid-course

Strong headwind penalty

-4.6 mph

Strong headwind penalty

+2.52%

Major weather drag

-45

Historically weather-dragged

57%

43%

14%

2025 race-weekend conditions

Mar 16, 2025

46.6F

3.9 mph

+1.04 mph

69F

69F

69F

Settle

8 recorded years

3 distances

More details coming

Mid-course

Open entry

5K planning

8

Available

Growing archive

67/100

43/100

100/100

80/100

87/100

87/100

The Hoodoo Challenge: Run To The Top

Corvallis Fall Festival Run

Eugene Marathon

Portland Marathon