Sean Astin at the Chicago Marathon

Sean Astin ran the Chicago Marathon on Sunday October 16. his third marathon of the year, in 4:31:05 (complete results below). Before the race, he interviewed with Stef Holt of Chicago's NBC affiliate.

Sean takes a selfie with Stef Holt

He's pumped and ready to go!

Taking off into the sun!

"Did you see my #Run3rd hat and Vox Populi wrist bands?"

Sean smiles seeing the finish line ahead!

He checks his time as he crosses the finish.

Sean and a friend show off their finishers medals.