Idaho · 10K · 5K

Seaport River Run

Seaport River Run is a 10K and 5K event held in Lewiston, Idaho. Its next confirmed date is Saturday, April 24, 2027. About 300 runners take part across all distances.

Race day
April 24, 2027
Location
Lewiston, ID
Field size
~300 runners

Race details

Date
Saturday, April 24, 2027
Location
Lewiston, Idaho
Distances
10K, 5K
Field size
About 300 runners
Course
Flat course along the Snake River levee and greenbelt trails
Registration
cityoflewiston.org

Registration, course & weather

Start time
10:00 AM PDT
Course profile — 10K
Point-to-point course; Road surface
Course profile — 5K
Point-to-point course; Road surface

About the Seaport River Run

A long-running spring 10K and 5K along the Snake River levee and greenbelt trails in the Lewiston-Clarkston Valley.

Rankings and notes

Rankings and awards
One of Idaho's longest-running road races, in its 48th+ year

More 10Ks in Idaho

Coming up next, by confirmed date.

More upcoming races in Idaho

Keep exploring

Guides from the RaceRove blog

Seaport River Run: common questions

When is the Seaport River Run?
The next confirmed date is Saturday, April 24, 2027.
Where is the Seaport River Run held?
In Lewiston, Idaho.
What distances does the Seaport River Run offer?
10K and 5K.
How many people run the Seaport River Run?
About 300 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 Seaport River Run?
Registration is handled by the organiser at cityoflewiston.org. Entry fees, caps and deadlines are set there.
What time does the Seaport River Run start?
10:00 AM PDT.