Luke Puskedra, who ran 2:10 at the Chicago Marathon in 2015 and finished 4th at the 2016 Olympic Trials, retired at the tender age of 29. Now he’s dabbling at 110 miles per week. We catch up with Luke to ask whether that retirement from professional running was indeed permanent. We also catch up with Cape Verde Olympian and Lowell Running founder and head coach Ruben Sanca, who will be lacing up at Chicago on Sunday.