[2] She later competed at the 2017 National Championships, where she placed first on balance beam (ahead of Maile O'Keefe and Adeline Kenlin), third in the all-around, fourth on floor exercise, and fifth on uneven bars.

[5] At the National Championships Eaker finished seventh in the all-around, second on balance beam behind Simone Biles, fifth on floor exercise, and ninth on uneven bars.

[8] The following day, Eaker was named to the team to compete at the Pan American Championships in Lima, Peru alongside Grace McCallum, Trinity Thomas, Jade Carey, and Shilese Jones.

During the competition, she placed first on the balance beam, sixth in the all-around, eighth on vault, ninth on uneven bars, and fifth on floor exercise.

[12] The following day, she was named to the team to compete at the 2018 World Championships alongside Simone Biles, Morgan Hurd, Grace McCallum, Riley McCusker, and alternate Ragan Smith.

In February, Eaker was named to the team to compete at the 2019 International Gymnix in Montreal alongside Alyona Shchennikova, Sloane Blakely, and Aleah Finnegan.

[20] At the Pan American Games Eaker competed on all four events, contributing scores on vault, balance beam, and floor exercise towards the team's gold-medal-winning performance.

[21][22] During the all-around final, Eaker placed fourth behind Ellie Black of Canada, McCusker, and Flávia Saraiva of Brazil due to falls on both the balance beam and floor exercise.

[25] At the 2019 U.S. National Championships, Eaker competed all four events on the first day of competition but fell off the balance beam and ended the night in eleventh place.

[26] On the second night, she performed cleanly and ended up finishing in tenth place but won silver on the balance beam behind Simone Biles.

The following day, she was named to the team to compete at the 2019 World Championships in Stuttgart alongside Biles, Lee, MyKayla Skinner, Jade Carey, and Grace McCallum.

[32][33] In the team final, Eaker competed a hit routine on balance beam and did not attempt the switch ring leap, helping the USA win the gold medal ahead of Russia and Italy.

[34] She tied with Chen Yile of China for the third highest beam score in the final behind teammate Biles and first-year Chinese competitor Li Shijia.

[37] In March, Eaker was selected to compete at the City of Jesolo Trophy alongside teammate Leanne Wong, as well as seniors Shilese Jones and Sophia Butler.

[48][49] Eaker cited that the abuse often happened in individual coach-athlete meetings, in which she would be isolated in a closed-door office with an overpowering coach, while he used "condescending, sarcastic and manipulative" tactics.