Marcora has a career high ATP singles ranking of 150 achieved on 17 February 2020.

At 2020 Maharashtra Open, he qualified for main draw where he earned his first ATP tour level win.

In the second round, he upset top seed Benoit Paire to enter his first quarterfinal at an ATP tour event.

[3] Although Marcora announced his retirement from professional tennis in February 2022, he changed his mind and returned four months later at the qualifying competition for the 2022 Wimbledon Championships.

[4][5] Marcora eventually retired again in March 2023, making his final professional appearance at the 2023 BNP Paribas Open.