Kailin Chio

Junior elite

Chio competed at the 2021 American Classic where she finished first in the all-around in the junior division.^[2] In late May she competed at the U.S. Classic where she placed second in the all-around behind Katelyn Jong.^[3] In June Chio competed at the 2021 U.S. National Championships. She ended the two day competition fifth in the all-around. She won gold on vault and bronze on floor exercise.^[4] As a result, Chio was added to the national team for the first time. Additionally she was selected to represent the United States at the Junior Pan American Championships alongside Jong, Madray Johnson, and Kaliya Lincoln.^[5]

At the 2021 Junior Pan American Championships Chio helped the USA finish first in the team final. Individually she won silver on the floor exercise behind compatriot Lincoln.^[6][7] In November of that year Chio was selected to represent the United States at the inaugural Junior Pan American Games alongside Katelyn Jong, Madray Johnson, and Tiana Sumanasekera.^[8] While there the United States placed first as a team and individually Chio won gold on floor exercise, silver in the all-around behind Jong, and bronze on uneven bars behind Johnson and Aurélie Tran of Canada.

Chio became age-eligible for senior competition in 2022. However, she did not compete during the season due to injury. In October she verbally committed to compete for the LSU Tigers gymnastics team starting in the 2024–25 season.^[9]

On January 9, 2023, Chio announced on her Instagram that she had retired from elite level gymnastics and would be competing Level 10.^[10] In November Chio signed her National Letter of Intent with the LSU Tigers.^[11]

NCAA

Chio made her collegiate debut on January 3, 2025 in a meet against the Iowa State Cyclones. She competed on all four events, earning an all-around score of 39.575 to help LSU win.^[12] As a result she was named SEC Freshman of the Week.^[13] On March 14, 2025 Chio earned her first collegiate perfect ten on vault in a meet at Auburn University.^[14] At the end of the regular season Chio was named 2025 SEC Freshman of the Year.^[15] At the 2025 NCAA Championships Chio scored a 9.975 on vault to win the national vault title outright.^[16]