Miller began learning to skate as a four-year-old. She also trained in gymnastics before deciding to focus on skating. She was coached mainly by her paternal aunt, Kirsten Miller-Zisholz, in
Lansing, Michigan, until June 2015. Miller won the
2011 U.S. novice title. The next season, she won a bronze medal in her
Junior Grand Prix debut and the
U.S. junior national bronze medal. In 2012–13, Miller won a pair of silver medals at
JGP events in Austria and Croatia and qualified for the
2012–13 Junior Grand Prix Final in
Sochi, Russia. She won the silver medal after placing second in the short program and fourth in the long. She made her senior national debut at the
2013 U.S. Championships, finishing 10th. In September 2014, making her senior international debut, Miller took the silver medal at the
Lombardia Trophy, an
ISU Challenger Series (CS) event in
Sesto San Giovanni, Italy. In November, she won gold at the CS
Ice Challenge in
Graz, Austria. In June 2015, Miller relocated to
Artesia, California, to train under
Rafael Arutyunyan. Miller-Zisholz, who encouraged her to move to a more competitive training environment, continues to work with Miller as an adviser and technical consultant. In August 2016, Miller announced a coaching change to
Tammy Gambill. == Programs ==