Conner Mantz talks about the role his mindset played in his American record setting race at the Chicago Marathon🔥 #ChicagoMarathon coverage is presented by @tracksmithrunning Website: http://flosports.link/3p20lTj Subscribe: http://flosports.link/3p4YLQp Get the FloSports iOS app: http://bit.ly/FloTrackiOSApp_9 Follow FloTrack Facebook: https://www.facebook.com/FloTrack Twitter: https://twitter.com/flotrack Instagram: https://www.instagram.com/FloTrack