In 2018, Hayes was featured on Sports Illustrated Kids as the 2018 SportsKid of the Year.[1][6]
In 2019, it was announced that Hayes would start attempting national meets in order to get Olympic Time Trial cut times.[7] In June, Hayes earned an Olympic Time Trials cut time at the 2019 Swim Pink A+ Invite in the 400m individual medley.[8]
In 2021, Hayes would swim in the 2020 United States Olympic trials in the 100m freestyle, the 200m individual medley, and the 400m individual medley. However, she would fail to qualify for the 2020 Summer Olympics in all three events.[9]
On April 26, it was announced that Hayes had suffered a stress fracture in her foot.[10] However, she would still compete in the 2022 USA Swimming International Team Trials.
At Trials, Hayes managed to qualify for both the 200m and the 400m individual medley. While Hayes came fourth in the 400m behind Katie Grimes, Emma Weyant, and Hali Flickinger, Hayes was able to get herself into second place in the 200m, thus qualifying her for the USA Worlds team.[11] and competed in the 2022 World Aquatics Championships in the women's 200m individual medley.[12] Hayes, in an interview, was reportedly in shock at making the team, saying "To make the team, it's definitely quite a surprise... As we were getting our pictures taken and I was standing with all these incredible athletes, I was like, 'Oh my gosh.' I had a conversation with Katie Ledecky and with Lilly King. What in the world?"[13]
Hayes was added to the roster of the 2022–2023 U.S. National Team by USA Swimming.[14]
At the 2023 World Aquatics Junior Swimming Championships in Netanya, Israel, Hayes set two new course records. The first was in the girls' 400m individual medley with a time of 4:36.84 and received a gold medal. Hayes is now ranked 6th all-time in the girls' 17-18 age group in the United States in the 400m individual medley.[5] Hayes also set another course record with her gold medal win in the 200m individual medley with a time of 2:10.24.[15] She later earned a second gold medal as part of the girls' 4x200m freestyle relay along with Addison Sauickie, Lynsey Bowen, and Madi Mintenko, with a time of 7:52.48.[5]
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