Austin has appeared in 207 career games (98 starts) for the Lakers, with career averages of 12.4 points, 3.6 rebounds and 3.7 assists in 28.5 minutes. He has scored in double figures in 133 career games, including 32 games with 20+ and three games with 30+. He has tallied 14 double-doubles, including two triple-doubles. With the Lakers, he has appeared in 21 games playoff games (all starts), averaging 16.9 points, 4.3 rebounds, and 4.3 assists in 35.9 minutes. He has scored in double figures in 19 playoff games, including nine games with 20+ points.

Austin appeared in 122 games (67 starts) for Wichita State and Oklahoma, averaging 10.8 points, 3.8 rebounds, and 2.6 assists in 24.5 minutes. He scored in double figures in 64 games, including 20 games with 10+ points, two games with 30+ points, one 40-point game, and two double-doubles. He made multiple three-pointers in 46 games, including a career-high seven threes once. He was a 2020-21 All-Big 12 First Team selection, led the Big 12 in free throws made, and became the first player to ever lead Oklahoma in points, rebounds, and assists. He signed a Two-Way contract with the Los Angeles Lakers on August 31, 2021, and later signed a standard NBA contract with the Lakers on September 27, 2021.

Austin is the son of Nicole Wilkett and Brian Reaves, both of whom played collegiate basketball at Arkansas State. His mother was an All-Conference forward and averaged 20 points per game in her final season and his father played point guard and is tied for third on ASU’s career assists chart. His brother, Spencer, played at Central Missouri. As a senior at Cedar Ridge High School, Austin averaged 32.5 points, 8.8 rebounds and 5.1 assists.