Sunday morning, runners will be making their way across downtown St. Louis.
The annual Rock 'n' Roll St. Louis Half Marathon kicked off Saturday with the 5K marathon.
Several road closures will be put in place as runners begin the 10K and Half Marathon at 10th and Market at 7 a.m.
For a full list of closures, see below.
For more information on the marathon, visit the Rock 'n' Roll Marathon's website.