[2] During his time off due to an injury suffered in 2016, Pecotić applied and was accepted to Harvard Business School, which he attended from 2017 to 2019, earning an MBA at the completion of his studies.

[3] In 2021, Pecotić began working for a private equity/real estate development firm in West Palm Beach, Florida, but continued to play tournaments that were close by.

He played college tennis at Princeton University, where he became the most winning player in program history.

He was also the captain of the tennis team, Princeton's first All-American since 1984, and the first-ever and only three-time Ivy League Player of the Year.

In 2023, he debuted for the Croatia national team at the 2023 United Cup in Perth, Australia but did not play any singles matches.

784 he qualified for his first main draw at the 2023 Delray Beach Open as an alternate defeating two Americans Stefan Kozlov and Tennys Sandgren.