Along with Chun Lee-kyung and Jin Sun-yu, Choi is widely regarded as one of the best female Korean short track speed skaters of all time.

Choi won third overall behind teammates Noh Do-hee and Ahn Se-jung after winning 1000m gold and 1500m silver at the 2014 World Junior Championships.

During the 2014–15 season at the senior level, Choi won her first World Cup gold medal ahead of Arianna Fontana and Shim Suk-hee in Montréal.

She was crowned the first-ever Four Continents overall champion after finishing first overall ahead of teammate Seo Whi-min and Courtney Sarault by a staggering margin of 89 and 92 points, respectively.

[6] During the 2021–22 season, she suffered knee and ankle injuries in separate collisions during the October World Cup opener in Beijing.

[17] On 7 March 2022, Choi donated 50 million won to the Hope Bridge Disaster Relief Association to help the victims of the massive wildfire that started in Uljin, Gyeongbuk, and has spread to Samcheok, Gangwon.