Chris Mosier

Chris Mosier (born 1980) is an American advocate for transgender rights and competitive triathlete, duathlete, and racewalker. He started his athletic career before transitioning, started his transition in 2010, and in 2015 earned a spot on the Team USA sprint duathlon men's team for the 2016 World Championship in the men's 35-39 age group division, making him the first known out trans athlete to join a U.S. national team different from his sex at birth.