20,000 runners will hit the Seattle streets for the annual Rock 'n' Roll Marathon this Saturday. Many of them will be gearing up for the big event at CenturyLink Field Event Center over the next two days.

The Health and Fitness Expo features hundreds of vendors that can prepare veteran runners and provide new runners with resources and equipment.

The expo is free to attend and the public is welcome even if they are not running in Saturday's race.

Date: Thursday & Friday
Location: CenturyLink Field Event Center
Admission: Free

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