Following college, Gallo began running professionally with sponsorship from
Reebok. Her first professional competition was in the 1500-meter run at the
USATF Outdoor Championships in June 2005, where she took fifth place with a time of 4:08.60. As the summer progressed, she improved her time in this event to 4:05.75. The following summer, she finished runner-up to
Treniere Clement at outdoor nationals with a time of 4:10.72. She then moved from Michigan to
Arlington, Virginia, where she was coached by
American University running coach
Matt Centrowitz. In May 2014, she received a Ph.D. in business administration from the University of Maryland and shortly thereafter began her professorship at the
University of Michigan. ==Achievements==