SEAPORT STRIDERS RUNNING CLUB
27th ANNUAL
LEWIS-CLARK HALF MARATHON, 5K, & KIDS RUN
Saturday, October 18, 2025, 9:00 AM
Granite Lake Park
Course closes at 12:15pm.
8:30am early start is recommended for half marathon participants who may not finish by 12:15pm
Early start MUST be coordinated with Race Director before starting
Registration: Check-in and same-day registration from 7:30-8:30 a.m. at Granite Lake Park. The park is located at 848 Port Way, just north of the Clarkston Holiday Inn next to the Snake River. For more information, contact our race director at
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Cost: $15.00 run only or $33.00 with shirt if you pre-register by October 6th. Fees after October 6th are $20.00 run only or $38.00 with shirt. You must register by October 6th to guarantee a shirt. Seaport Striders Club Members receive a $2 Discount! Mail entry form and check payable to: Seaport Striders, P.O. Box 20, Lewiston, ID 83501. No refunds.
Course: Both the Half-Marathon and 5K routes are out-and-back courses along the Snake River on the Greenbelt Trail System. This paved trail is mostly flat with multiple water & bathroom stops available.
Awards: Top-3 male and female & age-group ribbons. Medals for half marathon finishers.
Kids’ Run
We are pleased to hold a free 1 mile Kids’ Run! Kids will start at 8:30am so guardians can warm up a child in the Kids’ Run and then participate in the 5k or Half Marathon. For the Kids’ Run, we will announce times as children finish, but not report times publicly. Kids' run participants will be issued bibs and receive a participation award.
Mail-In & Same-Day registration form available at
https://seaportstriders.com/events/lewis-clark-half-marathon-5k-2025/
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