Browse all Oregon Half Marathons in 2025 by month and by city below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up.
We dedicate hours every month searching for races to include in the Oregon Half Marathons calendar. If you happen to see any half marathon not included, contact us at [email protected] to submit your race.
The Portland Half Marathon is the most popular half marathon with 3,782 finishers. The second most popular is the Eugene Half Marathon with 3,121 finishers in 2023, followed by the Shamrock Run Portland with 1,732 finishers.
The Oregon half marathons we recommend as the best for beginners most frequently are:
September is the most popular month to run an Oregon half marathon.
Bend is the most popular city to run a half marathon in Oregon.
Half Marathon Guide is the largest calendar and educational resource in the world for half marathon runners and enthusiasts with over 10,000,000 annual visitors.
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