Prior to swimming at Indiana University, Miller swam for the Sandpipers of Nevada. Miller rose to prominence in the world swimming scene at the 2014 Short Course World Championships in Doha, Qatar, where he took home a pair of medals, a silver in the men's 4×100 meter medley relay and a bronze in the 4×50 m medley relay. At the 2014 U.S. nationals, Cody Miller won the 100 breast and claimed his first national title. This win gained him popularity and earned him a sponsorship from the swimwear company TYR. He has been sponsored by TYR since then. At the 2015 World Aquatics Championships in Kazan, Russia, Miller claimed his first gold medal as part of the U.S. team in the 4×100 meter medley relay. Swimming the breaststroke leg, Miller recorded a split of 59.23 seconds in the prelims to put the Americans at the top of the final field with a time of 3:31.06. Miller also competed in the 100 m breaststroke, but failed to advance to the final, finishing in ninth at 59.86 seconds. Miller placed second at the 2016 United States Olympic Trials, behind Kevin Cordes. At the 2016 Summer Olympics, Miller won a bronze medal in the men's 100 metre breaststroke, setting the American record for the men's 100 metre breaststroke with a time of 58.87 seconds. Miller also won a gold medal in the men's 4 × 100 metre medley relay, in which he performed the breaststroke leg of the final.
Personal life
Cody Miller was born January 9, 1992 in Billings, Montana. He attended Palo Verde High School in Las Vegas, Nevada. Miller then swam at Indiana University under head coachRay Looze. When Miller qualified for the U.S. Olympic team in 2016, he was the first swimmer from Indiana University to make the U.S. Olympic team in 40 years. Miller has pectus excavatum, a deformity of the thoracic wall which causes the chest to cave in due to the sternum and rib cage growing abnormally. In Miller's particular case, his deformity is severe enough to cause limitations to his lung capacity. As a result of having the deformity, he started swimming at age eight "to monitor heart and breathing". Miller opted not to have surgery to correct the deformity, and swimming helped broaden his chest and develop his rib cage. Miller has a younger sister, Catie, who swims for Duke University and is also a breaststroke/IM swimmer. Cody Miller became engaged to Ali DeWitt on November 22, 2015 at the Golden Goggle Awards. Miller married his fiancée Ali DeWitt on September 9, 2017. Miller is a self professed film-buff. He is also recognized through his YouTube page which he set up in 2016, and has gained in popularity since. He creates content based on his personal life and swimming career. The channel highlights everything positive in the sport of swimming and makes hard work and training look fun. The channel has grown to over 100,000 subscribers. On June 21, 2020, Miller revealed in a video on his YouTube channel that he and his wife Ali are expecting their first child. The child is due on November 20, 2020.
