Prkačin grew up in the youth system of Cibona. At a very early age he started to stand out among his teammates. With the U-16 Cibona team, in 2017 he won U-16 Europe Youth Basketball League Tournament. He was the tournament's top scorer and was named the MVP.[1] He also played the 2017–18 Junior ABA League and 2018–19 Junior ABA League even though he was in average two to three years younger than his teammates.[2][3] In June 2019, he attended the Basketball Without Borders Europe camp in Riga, Latvia.[4]
Professional career
In August 2018, Cibona decided to loan Prkačin to KK Rudeš of the second-tier Croatian First League.[5] After playing very well in Rudeš he was called-up for the Cibona senior team in January 2019.[6][7] On 12 January 2019, Prkačin made his professional and Adriatic League debut for Cibona in a 89–68 loss to Cedevita, making 6 points and 6 rebounds.[8] Through 5 Adriatic League games in the 2018–19 season, Prkačin averaged 2.2 points, 2.0 rebounds, and 0.4 assists per game.[9] On 24 September 2020, Prkačin was promoted as the new team captain of Cibona, becoming the youngest captain in clubs history at 17 years and 10 months of age.[10] Following the 2020–21 season Prkačin declared for the 2021 NBA draft. On July 19, 2021, he withdrawn his name from consideration for the 2021 NBA draft.[11]
On July 21, 2022, Prkačin signed with Girona. He averaged 6.5 points a contest in the Liga ACB during the 2022-23 season. He subsequently inked a deal with fellow ACB outfit Gran Canaria. In the 2023-24 campaign, Prkačin saw the hardwood in 22 ACB contests, averaging 2.5 points per outing for the Gran Canaria team.[12]
On June 26, 2024, he agreed to terms with French side Nanterre 92.[13]
In the same summer of 2018, Prkačin played with the Croatia under-16 team that won the gold medal at the 2018 FIBA Europe Under-16 Championship held in Novi Sad.[16] Over seven tournament games, he averaged 18.6 points, 10.9 rebounds, 3.7 assists and 2.0 blocks per game and was honored with the tournament's MVP title along with a spot in the All-Star Five team.[17]