A vast network of roads in D.C. and Arlington, Virginia will play host on Sunday to tens of thousands of runners, rather than cars, during the running of the 50th Marine Corps Marathon.

And that means headaches for drivers this weekend, especially if they aren’t prepared.

Anyone hitting the road Sunday in the vicinity of Rock Creek Parkway, Georgetown, Downtown D.C., Rosslyn, Crystal City, Pentagon City or anywhere in between should beware, getting around will be difficult and potentially impossible.

Residents are recommended to utilize public transportation or rideshare to get around the city.

A map of the route of the race, along with a full list of road closures, as posted on the Marine Corps Marathon website , is below:

3 a.m. to 11 a.m.

Lynn Street from 19th Street N to Langst

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