Kupres has won three doubles titles on the ITF Women's World Tennis Tour.

[14] She was one of the top prospects of her age in Canada and signed a letter of intent to play at Texas A&M University in 2021.

[15] She played all of the junior Grand Slam tournaments in 2022, reaching the third round in singles and doubles at the US Open.

[14] Kupres made her debut on the ITF Women's World Tennis Tour in doubles at the W25 event in Gatineau, Quebec, in July 2019.

[16] Partnering Ariana Arseneault, Kupres won the 2024 Championnats Banque Nationale de Granby, defeating Liang En-shuo and Park So-hyun in the final.

[17] The pair were also runners-up at the 2024 Dow Tennis Classic, losing to second seeds Emily Appleton and Maia Lumsden in the final.