NOTE: NBC 5 will offer complete live coverage of the 2017 race beginning at 7 a.m. CT online and on TV on Oct. 7. The race can be streamed live from around world on the NBC Chicago app, which will also offer a live stream of the finish line from 11 a.m. to 3 p.m.
More than 40,000 runners will traverse 26.2 miles of Windy City streets for the 2018 Bank of America Chicago Marathon -- but things will be a bit different this year.
The route has changed slightly for 2018.
The start and finish line areas are still located in Grant Park on Columbus Drive. The 26.2-mile course runs through 29 Chicago neighborhoods. The route extends north to Sheridan Rd., west to Damen Ave. and south to 35th St.
Here's what it looks like: