Boston Marathon 'not feasible this year' because of coronavirus concern Mayor Walsh announces WCVB BostonBoston Marathon canceled for first time because of coronavirus pandemic ESPNMarathon canceled: Mayor says September date 'not feasible' WCVB Channel 5 BostonWalsh: 2020 Boston Marathon Canceled WBUR2020 Boston Marathon canceled. This is the first time in history it will not be held.