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The journey of 26.2 miles begins with a single step this Sunday, Oct. 1, at the Portland Marathon. Whether you've been training for months or are just looking to avoid the traffic, here are some things to know.

Start time: 7 a.m. for the marathon, 7:15 a.m. for the half-marathon.
Start location: Tom McCall Waterfront Park, 1000 SW Naito Pkwy.
Changes have been made to this year's course to include more neighborhoods.

Periodic bridge and street closures will affect riders on the MAX and TriMet's buses. Find more important traffic and parking information. Cheering on a friend or family member? Track the athletes with this interactive tool (you'll need their bib number or last name).

Current weather forecasts predict 70° and sun. Fun fact: Historically, the chance of rain on race day is 25%.