As a freshman for the Winthrop Eagles in 2017–18,[2] Zunic played 26 games with nine starts and averaged 6.8 points, 1.3 rebounds and 1.3 assists in 18.8 minutes per game.[11] He missed games with injuries to his ankles and appendix issues.[12]
As a sophomore in 2018–19, Zunic averaged career highs in points (8.6), rebounds (4.3), assists (1.9) and minutes (21.8).[11] He played 30 games and made 18 starts.[11] On 20 December 2018, he had a career-high 21 points and 10 rebounds against UMES.[2][13]
As a junior in 2019–20, Zunic was named to the Big South Conference All-Academic Team and helped the Eagles win the Big South Conference tournament.[2] He played 32 games with seven starts and averaged 5.5 points, 3.0 rebounds and 1.9 assists in 18.7 minutes per game.[11] He became the 24th player in program history to hit 100 career 3-pointers.[2]
As a senior in 2020–21, Zunic was again named to the Big South Conference All-Academic Team[14] and helped the Eagles win the Big South Conference tournament for the second year in a row.[15] He played 25 games with a career-high 24 starts and averaged 5.0 points, 2.6 rebounds and 1.4 assists in 19.6 minutes per game.[11]
In June 2021, Zunic joined the USC Rip City of the NBL1 North.[16][17] In 12 games, he averaged 12.91 points, 6.33 rebounds, 5.08 assists and 1.16 steals per game.[18]
On 6 September 2021, Zunic signed with the Perth Wildcats of the National Basketball League (NBL) as a development player for the 2021–22 season.[19] He made his NBL debut on 3 December 2021, scoring two points in 17½ minutes as a starter in the Wildcats' 85–73 season-opening win over the Adelaide 36ers.[20][21] He became the first development player in NBL history to earn a start in his debut.[22] In 16 games, he averaged 1.7 points and 1.3 rebounds per game.[23]
On 24 May 2022, Zunic was elevated to the Wildcats' main roster on a two-year deal.[26] He appeared in 14 games during the 2022–23 NBL season, averaging 1.6 points per game.[27]
Zunic joined the Northside Wizards for the 2023 NBL1 North season.[28] In 14 games, he averaged 15.7 points, 3.9 rebounds, 7.4 assists and 2.43 steals per game.[29][30]
Zunic missed the first three weeks of the 2023–24 NBL season due to a foot injury.[31][32] He appeared in 10 games for the Wildcats in 2023–24, scoring eight total points.[33] He earned his second straight Perth Wildcats Coaches Award.[34]
On 21 March 2024, Zunic signed with the Keilor Thunder for the 2024 NBL1 South season.[35]
In 2019, Zunic helped the Australian University National Team win bronze at the World University Games in Italy.[36] He recorded a team-high four assists in the bronze medal game against Israel.[38]
^Ward, Courtney (14 March 2018). "Kyle Zunic reflects on first season soaring with Winthrop Eagles". southcoastregister.com.au. Archived from the original on 9 December 2021. I had those injuries during the year, with my ankles and my appendix but I think it has made me stronger for the years to come.