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Tired of Running in Circles?

Knowwheretorun.com is the premier marathon calendar, which started by listing over 200 marathon races in 2008 - 2009. We are growing and updating on a daily basis.

The Online Marathon Calendar includes the basic events, time, date, location of marathons, half-marathons, 5K and 10K races, along with any other accompanying race distances. 

Runners can search for marathons by location, month, or race distance. You can click the race distance in the boxes above, or the months below. For US races, click the state on the map below to view races in that state.  Continue reading.

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We are always adding new races. Please continue to check back as we complete our race calendar. 

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About Us

Our mission is simple: promote, encourage and support running, runners, and those who provide opportunities for runners.

We do this by providing information about races free to race directors, running clubs, and runners. Here runners and race organizers can share information and interact. Continue reading.

“We love the idea that we can have a complete overview of races at our fingertips in less than 15 minutes! It’s Invaluable!”

—Sara & Lee San Francisco, CA

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