This event features a headline Half Marathon along with shorter races (8K, 5K), a walk option, and a children’s Lucky Lap, catering to runners, walkers, and families. On March 15, 2026, in Portland, OR, the races start and end in the city’s core, using roads and paths that pass waterfronts, bridges, and iconic city views. The terrain is paved and generally flat, with mild elevation where the course climbs over bridges, offering good opportunities for fast times. It’s also a festive affair, with strong St. Patrick’s Day vibes, enthusiastic crowd support, music, and a big post-race celebration. The event draws a large crowd and includes full amenities like timing, hydration/water stations, finisher medals, and a finish-line festival.
Races
The Shamrock Half Marathon is organized by Shamrock Run Fest / Toyota and takes place on Sunday, March 15, 2026, in Portland, Oregon, starting on Naito Parkway & Pine Street. The course is a scenic road loop weaving through downtown Portland, past waterfronts and bridges, culminating in a festive St. Patrick’s Day atmosphere.
Also hosted by Shamrock Run Fest / Toyota on March 15, 2026, the 8K race begins at the same start location (Naito Parkway & Pine Street), Portland, Oregon. This distance offers a shorter, fast-paced road run for those wanting a less intense but still festive race experience.
The 5K event, part of Shamrock Run Fest 2026 organized by Shamrock Run Fest / Toyota, is on Sunday, March 15, 2026, in Portland, Oregon, at Naito Parkway & Pine Street. It’s the most accessible distance in the event, perfect for beginners, fun runners, or those wanting to join in without committing to longer races.
Weather based on historical averages.
FAQs
What is the Shamrock Half Marathon?
How long is the Shamrock Half Marathon?
Where does the Shamrock Half Marathon take place?
What is the elevation gain of the Shamrock Half Marathon?
How can I prepare for the Shamrock Half Marathon?
How do I choose the right training plan for the Shamrock Half Marathon?
The Shamrock Half Marathon is organized by Shamrock Run Fest / Toyota and takes place on Sunday, March 15, 2026, in Portland, Oregon, starting on Naito Parkway & Pine Street. The course is a scenic road loop weaving through downtown Portland, past waterfronts and bridges, culminating in a festive St. Patrick’s Day atmosphere.
The Shamrock Half Marathon is 21km long.
The Shamrock Half Marathon takes place in Portland, OR, USA.
Runna classifies the Shamrock Half Marathon elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Shamrock Half Marathon?
The Shamrock Half Marathon is organized by Shamrock Run Fest / Toyota and takes place on Sunday, March 15, 2026, in Portland, Oregon, starting on Naito Parkway & Pine Street. The course is a scenic road loop weaving through downtown Portland, past waterfronts and bridges, culminating in a festive St. Patrick’s Day atmosphere.
How long is the Shamrock Half Marathon?
The Shamrock Half Marathon is 21km long.
Where does the Shamrock Half Marathon take place?
The Shamrock Half Marathon takes place in Portland, OR, USA.
What is the elevation gain of the Shamrock Half Marathon?
Runna classifies the Shamrock Half Marathon elevation profile as Flat.
How can I prepare for the Shamrock Half Marathon?
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Shamrock Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Shamrock 8K?
How long is the Shamrock 8K?
Where does the Shamrock 8K take place?
What is the elevation gain of the Shamrock 8K?
How can I prepare for the Shamrock 8K?
How do I choose the right training plan for the Shamrock 8K?
Also hosted by Shamrock Run Fest / Toyota on March 15, 2026, the 8K race begins at the same start location (Naito Parkway & Pine Street), Portland, Oregon. This distance offers a shorter, fast-paced road run for those wanting a less intense but still festive race experience.
The Shamrock 8K is 8km long.
The Shamrock 8K takes place in Portland, OR, USA.
Runna classifies the Shamrock 8K elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Shamrock 8K?
Also hosted by Shamrock Run Fest / Toyota on March 15, 2026, the 8K race begins at the same start location (Naito Parkway & Pine Street), Portland, Oregon. This distance offers a shorter, fast-paced road run for those wanting a less intense but still festive race experience.
How long is the Shamrock 8K?
The Shamrock 8K is 8km long.
Where does the Shamrock 8K take place?
The Shamrock 8K takes place in Portland, OR, USA.
What is the elevation gain of the Shamrock 8K?
Runna classifies the Shamrock 8K elevation profile as Flat.
How can I prepare for the Shamrock 8K?
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Shamrock 8K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Shamrock 5K?
How long is the Shamrock 5K?
Where does the Shamrock 5K take place?
What is the elevation gain of the Shamrock 5K?
How can I prepare for the Shamrock 5K?
How do I choose the right training plan for the Shamrock 5K?
The 5K event, part of Shamrock Run Fest 2026 organized by Shamrock Run Fest / Toyota, is on Sunday, March 15, 2026, in Portland, Oregon, at Naito Parkway & Pine Street. It’s the most accessible distance in the event, perfect for beginners, fun runners, or those wanting to join in without committing to longer races.
The Shamrock 5K is 5km long.
The Shamrock 5K takes place in Portland, OR, USA.
Runna classifies the Shamrock 5K elevation profile as Flat.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Shamrock 5K?
The 5K event, part of Shamrock Run Fest 2026 organized by Shamrock Run Fest / Toyota, is on Sunday, March 15, 2026, in Portland, Oregon, at Naito Parkway & Pine Street. It’s the most accessible distance in the event, perfect for beginners, fun runners, or those wanting to join in without committing to longer races.
How long is the Shamrock 5K?
The Shamrock 5K is 5km long.
Where does the Shamrock 5K take place?
The Shamrock 5K takes place in Portland, OR, USA.
What is the elevation gain of the Shamrock 5K?
Runna classifies the Shamrock 5K elevation profile as Flat.
How can I prepare for the Shamrock 5K?
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Shamrock 5K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
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Sport:
Running
Tags:
Kid friendly
