She is the second of four children of Olympic gold medal gymnast Mary Lou Retton and former Texas Longhorns quarterback Shannon Kelley.

[4] She attended the USA Gymnastics training camp for the selection of the 2015 Pan American Games but did not make the team.

At the Super Six team finals of the 2017 NCAA Gymnastics Championship, she contributed a score of 9.9 on the floor exercise to help the Tigers earn another second-place finish.

Kelley did not compete in the 2018 season due to an Achilles tendon injury she suffered during a preseason training session.

In addition to floor exercise, Kelley competed regularly on vault and three times on balance beam during the 2019 season.