Olbrich was born Adelaide, South Australia.[1] He grew up playing basketball with his older brother Mitchell and his father Greg.[2] He attended Reynella East College in Adelaide, where he played basketball and volleyball.[3] He represented South Australia at national basketball championships in 2020 and 2021.[3]
Olbrich re-joined the Southern Tigers of the NBL1 Central for the 2022 season. He was named to the All-Star Five[6] and won the Frank Angove Award as the league's best under 23 player.[7] In 12 games, he averaged 19.8 points, 10.5 rebounds, 3.3 assists and 1.1 blocks per game.[4]
College career
Olbrich moved to the United States to play college basketball for the UC Riverside Highlanders of the Big West Conference in the 2022–23 season.[8] He averaged 11.4 points, 6.1 rebounds and 1.4 assists per game. He was subsequently named Big West Freshman of the Year and earned All-Big West Honorable Mention honours.[1][3] He became just the second Big West Freshman of the Year in UC Riverside history.[9]
Professional career
Olbrich returned to the NBL1 Central and joined the West Adelaide Bearcats for the 2023 season. He was once again named to the All-Star Five and won his second Frank Angove Award.[10] He helped the Bearcats reach the NBL1 Central grand final, where they defeated the Forestville Eagles 106–95 to win the championship behind Olbrich's 24 points, 10 rebounds and eight assists. He was subsequently named grand final MVP.[11] In 18 games, he averaged 21.1 points, 9.0 rebounds and 2.6 assists per game.[4]
On 4 April 2023, Olbrich signed a three-year deal with the Illawarra Hawks of the NBL.[12] He had a breakout showing in the pre-season NBL Blitz but struggled early in the regular season. Upon coach Justin Tatum taking over midway through the season, Olbrich went on to prove himself as a capable back-up for captain Sam Froling.[13] In 31 games in the 2023–24 NBL season, he averaged 3.8 points and 3.1 rebounds per game.[4] Following his first NBL season, he had hopes of declaring for the 2025 NBA draft.[14]
Olbrich entered the 2024–25 NBL season after a standout NBL Blitz pre-season tournament with the Hawks, demonstrating his potential in front of NBA scouts.[25] On 28 November 2024, he scored a career-high 21 points in just 13 minutes of court time in a 109–71 win over the New Zealand Breakers.[26][27]
Olbrich's father, Greg Olbrich, was a figure in South Australian basketball and had won the most valuable player in the South Australian State League in 1995.[2][29] Greg died in March 2024 at age 51 after suffering a cardiac arrest during a social basketball game.[30]