As you may or may not know, South Michigan Ave and Roosevelt road are mile 25 and 26 of the end of the Chicago Marathon. So while the conditioned competitive runners will have no issues (or visible signs of pain), if you wait long enough you will see what running that far means to your "average" runner.
Anyway, it's definitely an interesting event and for most of us, it's footsteps away from our front door.
With that also means some inconveniences. For instance Michigan Ave between 35th and Roosevelt will be closed from 7am to 3pm. Roosevelt road will also be closed from 6am to 4:30pm between Michigan and Columbus dr. For the full list of street closures click here.
Also, if you're close to these streets chances are you will hear blaring music, screaming fans and the dreaded consistent ringing of noise makers: