[5] Their mother was born in the Philippines and was a resident of Caloocan City before moving to the United States at age 19 as a college student.

[10] She made her elite debut at the American Classic in July where she finished sixth in the all-around but won bronze on the balance beam.

[12] In August, she competed at her first National Championships where she placed 14th in the all-around, fourth on vault, 18th on uneven bars and balance beam, and 15th on floor exercise.

In February, she was named to the team to compete at the International Gymnix in Montreal alongside Alyona Shchennikova, Sloane Blakely, and GAGE teammate Kara Eaker.

She also placed second on vault behind Jade Carey, twelfth on uneven bars, tenth on balance beam, and seventh on floor exercise.

After the competition, she was named to the team to compete at the Pan American Games alongside Eaker, Morgan Hurd, Riley McCusker, and Leanne Wong.

[18] At the 2019 Pan American Games Finnegan competed on vault and floor, with both her scores contributing towards the USA's gold medal winning performance.

Individually, Finnegan qualified to the vault final in fourth, behind Ellie Black of Canada, Yesenia Ferrera of Cuba, and Martina Dominici of Argentina.

She also placed fourth on vault, thirteenth on uneven bars, fifteenth on balance beam, and sixth on floor exercise.

[24] Finnegan competed at the U.S. World Championship trials on only the balance beam, receiving a score of 13.200, finishing twelfth on the event.

[28] In May 2021, Finnegan competed at the 2021 GK U.S. Classic, finishing fifth in the all-around behind Simone Biles, Jordan Chiles, Kayla DiCello, and Grace McCallum.

[30] Finnegan announced her retirement from elite gymnastics on June 11, intending to continue competing at the NCAA level with the LSU Tigers.

[46] On February 17, Finnegan scored a perfect 10 for the third week in a row, this time on the balance beam, helping LSU upset the No.

[51] During the NCAA Championship semifinals, she won an individual national title on floor exercise with a score of 9.9625 and helped LSU advance to the final.

In the last rotation, she anchored the Tigers on the balance beam with a 9.950, clinching LSU's first national championship title in program history.