The Biggest 5Ks in the U.S.

For new and veteran runners alike, the 5K is a popular race choice, with hundreds of thousands—maybe even millions—of runners signing up each year. They are fast, fun and more affordable than longer distances, while still packing enough mileage to present a challenge.

Here are the 10 biggest 5K races in the U.S., according to Running USA’s most recent report.

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Couch to 5K®
Couch to 5K®

Couch to 5K®

The best way to get new runners off the couch and across the finish line of their first 5K.

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