During her senior year at Presentation, she won the 200 individual medley at the California State Championship, She was also part of the Palo Alto Stanford Aquatics team.

[1] Isleta was part of Arizona State's Sun Devils swimming team,[6] where she was able to train under Bob Bowman.

[1] She competed for De La Salle swimming team at the University Athletic Association of the Philippines (UAAP) for just one year – in Season 85.

[9] She would qualify for the 2022 World Aquatics Championships in Hungary via FINA points but due to the qualification procedures and withdrawals of other Filipino athletes she was not able to participate due to tournament regulations giving preference to athletes qualifying through standard entry times.

[10] At the 2022 ASEAN University Games, Isleta won four out of five of the Philippine delegation's swimming gold medals.