Yeo Seo-jeong

Yeo won the all-around at the South Korean National Championships in addition to winning vault and floor. She also won the silver medal on uneven bars.[3] Then, she made her senior international debut at the Guimaraes Challenge Cup and won the gold medal on vault.[4] She was then selected to competed at the 2018 Asian Games alongside Ham Mi-ju, Kim Ju-ry, Lee Eun-ju, and Yun Na-rae. The team finished in fourth place.[5] Individually, Yeo won the gold medal on vault, and she placed ninth in the all-around, eighth on beam, and seventh on floor.[5] She then competed at the World Championships where she placed fifth on vault.[6] Her final meet of the season was the Voronin Cup where she won vault gold, all-around silver, and floor exercise bronze, and she placed eighth on bars and beam.[7]

Yeo won the gold medal on vault at the Melbourne World Cup. This was the first time that a Korean female gymnast won a gold medal in the FIG World Cup series.[8] At the 2019 Korea Cup, Yeo became the first woman to land the handspring double twist vault. She said of the new vault, "I was afraid, but once I started focusing on the competition, my fear disappeared. I am so happy that I was able to execute that. I wanted to land the new vault regardless of my final rankings today, and everything went my way."[9] The vault was then named after her and added to the Code of Points.[10] At the World Championships in Stuttgart, Yeo qualified to the vault final in fifth place with a score of 14.766.[11] However, she finished last in the final after a fall and going out of bounds when attempting the handspring double twist vault.[12] Because she qualified for the vault event final, Yeo qualified as an individual for the 2020 Olympic Games.[13] After the World Championships, she competed at the Swiss Cup alongside Lee Jun-ho, and they finished seventh in the team competition.[14]

At the 2020 Olympic Games, Yeo competed in the vault final and performed her eponymous vault, which had the highest difficulty value in the final.[15] She finished with an average score of 14.733 and won the bronze medal behind American MyKayla Skinner and Brazilian Rebeca Andrade.[16] This made her the first South Korean female gymnast to win an Olympic medal.[17]