ORRC Best Dam Run 10K / Half Marathon
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The Best Dam Run course is lovely! Mostly on private closed road, it features views of the Clackamas River, cool forests, interesting geology and (if you’re lucky) bald eagles and osprey. The 10K is a speedy, net downhill point-to-point course, same as prior years. The newer half marathon course is a Z-fold course — it starts out with the 10K, then at 3.45 miles, heads back towards the start, then turns around yet again to finish at the same finish line as the 10K, Broadway Street in downtown Estacada.
Related Events
Did you know that this race is part of a series of runs? If you like this race you may want to run one of the following Oregon Road Runners Club events.
Trail
Road
Run Pick of the Month - Portland Marathon
Run Rose City's signature premier running event with a marathon, half marathon, and 10K, happening October 5, 2025.
Enjoy a course with gorgeous views of Portland's waterfront, several bridge crossings, and a full tour of some of the city's most iconic landmarks!
Runners will score free race photos and highlight videos, event and sponsor swag - including race medals and event shirt, plus food and drinks at the Finish Line Festival, including a complimentary, Oregon-brewed beer (runners 21+ only).
Save 20% on your registration using code "RG20"
Click the button below to get all the details!
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