Portland 10K
Race Day Weather
Cool start — fast day potential
A cool 48°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temperatures rising to 57°F through the course will gradually increase perceived effort in the second half. Moderate humidity at 78% is worth noting for effort level, especially in later miles.
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Race Info
The Portland 10K covers 6.2 miles of downtown and Northwest Portland, starting and finishing at Waterfront Park on Salmon Street. It follows the marathon route west to Lownsdale Square, north on SW 4th Avenue through downtown, around Old Town and back onto Broadway, then out to NW 23rd Avenue and east again through the Pearl District. At Broadway the 10K leaves the marathon course, winds through Old Town and runs a short out-and-back on Naito Parkway before turning south to the finish.
