Dr. Marcia MacDonald is a Deputy Director of Science and Medicine at the World Anti-Doping Agency (WADA). In this interview, we discuss how Marcia began her career in anti-doping, the history of WADA’s anti-doping research program, and their current research priorities. She also shares information about new and ongoing anti-doping research projects, funding opportunities for researchers, implementation of newly developed anti-doping techniques and technology, and more.