Justin Tatum is an American basketball coach and former professional player best known as the father of Boston Celtics star Jayson Tatum. Although his son’s NBA success has brought attention to the family, Justin has built an accomplished basketball career of his own. After coaching high school teams in Missouri, he became head coach of Australia’s Illawarra Hawks and led the franchise to the 2025 National Basketball League championship. His influence on Jayson’s development, demanding coaching approach, and success overseas have made him a recognizable figure in professional basketball.
Justin Tatum is the father of NBA star Jayson Tatum and the head coach of the Illawarra Hawks in Australia’s National Basketball League. A former college and professional basketball player, he previously coached in Missouri before moving to Australia in 2023. He guided the Hawks to the 2025 NBL championship.
Family Profile
| Attribute | Details |
|---|---|
| Full Name | Justin Tatum |
| Known For | Basketball coaching and being Jayson Tatum’s father |
| Famous Son | Jayson Christopher Tatum |
| Other Children | Jaycob Tatum and Kayden Tatum |
| Hometown | St. Louis, Missouri, United States |
| Nationality | American |
| Profession | Basketball coach and former professional player |
| High School | Christian Brothers College High School |
| College | Saint Louis University |
| College Education | Bachelor’s degree in criminal justice |
| Former Coaching Teams | Soldan International Studies High School, Christian Brothers College High School |
| Current Team (2026) | Illawarra Hawks, Australian NBL |
| Major Achievement | 2025 NBL championship and Coach of the Year |
| College Playing Height | 6 feet 7 inches |
Who Is Justin Tatum?
Justin Tatum is an American basketball figure whose experience spans college competition, professional basketball in Europe, high school coaching, and Australia’s National Basketball League. Originally from St. Louis, Missouri, he developed his reputation through years of coaching young athletes before moving into international professional basketball.
He is also the father of Jayson Tatum, the Boston Celtics forward who became an NBA champion in 2024. Their shared connection to basketball has been a central part of their relationship, although Justin’s coaching career developed independently of his son’s achievements.
The NBA’s official biography of Jayson Tatum identifies Justin Tatum and Brandy Cole as Jayson’s parents. It also documents Justin’s college basketball background, establishing that his experience in the sport began long before Jayson entered the NBA.
By October 2026, Justin remained head coach of the Illawarra Hawks, continuing a professional career that had taken him from Missouri school gymnasiums to championship basketball in Australia.
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Early Life and Basketball Background
Growing Up in St. Louis
Justin developed his basketball skills in St. Louis, a city with a long tradition of producing competitive high school and college athletes. He attended Christian Brothers College High School, commonly called CBC, where he became an important member of the basketball program.
In 1997, he helped CBC win a Missouri state basketball championship. That achievement marked an early milestone in a career that would eventually bring him back to the same school as its head coach.
His basketball background also connected him with future NBA player Larry Hughes, who became a close family friend and Jayson’s godfather. These relationships helped place basketball at the center of Justin’s professional and family life.
College Basketball at Saint Louis University
After high school, Justin attended Saint Louis University, where he played for the Billikens. The university’s official basketball roster lists him as a 6-foot-7, 235-pound forward during the 2000–01 season.
His professional biography states that he earned a bachelor’s degree in criminal justice. He also contributed to the Billikens’ 2000 conference championship campaign, which included an NCAA Tournament appearance under head coach Lorenzo Romar.
Justin developed a reputation for defense during his college career. His published biography credits him with Conference USA defensive recognition and a place among Saint Louis University’s notable shot blockers.
These experiences gave him a foundation in organized basketball that later shaped his transition into coaching.
Did Justin Tatum Play in the NBA?
Justin Tatum played basketball professionally, but he did not establish a playing career in the NBA. His professional opportunities came primarily overseas, including time competing in the Netherlands.
After college, he continued his playing career in European basketball, experiencing a different competitive environment from the American college system.
Playing abroad also required extended periods away from home. During that time, Brandy Cole sometimes traveled with their young son, Jayson, to visit Justin in the Netherlands.
His professional playing experience became particularly valuable when he moved into coaching. He had firsthand knowledge of college and overseas basketball, including the demands placed on athletes pursuing professional opportunities.
Although searches sometimes connect Justin Tatum with NBA teams, his documented career is that of a former overseas professional player and basketball coach rather than a former NBA player.
Justin Tatum’s Coaching Career in Missouri
Justin’s coaching career began in the St. Louis area after his playing days ended. He worked as an assistant coach at Christian Brothers College High School before accepting a coaching position at Soldan International Studies High School.
At Soldan, he developed his skills in leading a school basketball program. His responsibilities involved developing athletes, preparing teams for competition, and supporting young players pursuing college opportunities.
In 2013, he returned to CBC as head basketball coach. Coaching at his former school allowed him to lead the program where he had once celebrated a state championship as a player.
According to his published professional biography, Justin won three Missouri state championships as a coach and received multiple Missouri Basketball Coaches Association Coach of the Year honors.
His work extended beyond school competition. He organized basketball camps and worked with younger athletes interested in improving their skills and understanding the game.
After approximately 16 years in Missouri high school coaching, Justin accepted an opportunity that would significantly change the direction of his professional career.
Justin Tatum and the Illawarra Hawks
Moving to Australian Professional Basketball
In 2023, Justin joined the Illawarra Hawks organization in Australia’s National Basketball League. He initially worked in scouting and basketball operations before becoming an assistant coach.
The Hawks were struggling when he took over as interim head coach in November 2023. His appointment came after the team opened the season with a disappointing record, creating an opportunity for him to demonstrate his leadership at the professional level.
Under Justin’s direction, Illawarra improved substantially. By February 2024, the team had recorded 12 wins and seven losses during his interim tenure.
On February 22, 2024, the Illawarra Hawks officially appointed him permanent head coach, announcing a three-year agreement.
The appointment established Justin as more than a former high school coach. He had successfully moved into one of Australia’s leading professional basketball competitions.
Winning the 2025 NBL Championship
Justin’s biggest professional coaching achievement arrived during the 2024–25 NBL season.
The Hawks emerged as championship contenders under his leadership. Their improvement earned him the Lindsay Gaze Trophy as the league’s Coach of the Year in February 2025.
On March 23, 2025, Illawarra defeated Melbourne United 114–104 in the deciding fifth game of the championship series. The result delivered the Hawks their second NBL title and their first since 2001.
The NBL’s championship coverage documented the remarkable turnaround from a struggling team to league champion.
For Justin, the achievement was particularly meaningful because it represented success at a professional level after spending much of his career developing high school athletes.
He later accepted a short-term coaching assignment with Pelita Jaya Jakarta in Indonesia during the Australian offseason in 2025, further expanding his international experience.
Justin Tatum’s Relationship With Jayson Tatum
Justin played a major role in introducing Jayson to basketball. He helped develop his son’s skills through training sessions and demanding practice routines while Jayson was growing up.
Their relationship, however, was not always straightforward. Jayson has discussed how his father’s intense coaching sometimes affected their connection outside basketball.
In interviews, the Celtics star explained that much of their time together revolved around training and competition rather than ordinary father-son activities.
Justin’s coaching style emphasized toughness, discipline, and demanding expectations. Jayson has acknowledged that those experiences helped motivate him, while also explaining that their relationship became strained at times.
As Jayson grew older, their relationship improved. In a November 2024 interview with NBA.com, he discussed how his experiences with his father influenced his own approach to raising his son, Deuce.
Their bond was again evident in March 2026, when Justin publicly expressed pride in Jayson’s return to basketball following a serious injury. Speaking to The Boston Globe, he described how their shared experiences had brought them closer.
Their story reflects a complicated but enduring relationship shaped by basketball, personal growth, and parenthood.
Justin Tatum’s Family and Personal Life
Justin shares his eldest son, Jayson, with Brandy Cole-Barnes. The two became parents while they were young college students, and Brandy took the primary role in raising Jayson.
Although they did not remain together as a couple, Justin continued participating in his son’s life. Their different responsibilities and experiences contributed to Jayson’s upbringing in St. Louis.
Justin also has two other publicly documented children, Jaycob and Kayden. Jaycob pursued football during his school years, while Kayden has received comparatively little public coverage.
Jayson later became a father himself when his son, Jayson Christopher Tatum Jr., commonly known as Deuce, was born in 2017. This made Justin a grandfather as well as the father of an NBA star.
Regarding searches about Justin Tatum’s wife, established reporting does not clearly identify a current spouse. Brandy Cole-Barnes is Jayson’s mother, but she should not be described as Justin’s current wife.
Where Is Justin Tatum Coaching in 2026?
As of October 2026, Justin remains the head coach of the Illawarra Hawks in Australia’s National Basketball League.
Following the 2025 championship, the Hawks experienced a more difficult 2025–26 season, finishing with a 13–20 record. The team subsequently focused on rebuilding its competitiveness for the 2026–27 campaign.
The NBL’s August 2026 coverage discussed Justin’s plans to restore the playing standards that helped Illawarra win its championship.
His continuing leadership demonstrates that he has established a professional identity beyond his connection to Jayson. He remains responsible for developing players, managing team performance, and competing in Australia’s top basketball league.
Conclusion
Justin Tatum is more than Jayson Tatum’s father. He is a former professional basketball player, accomplished Missouri high school coach, and NBL championship-winning head coach. His career has progressed from St. Louis basketball to international competition, while his relationship with Jayson has evolved through years of shared experiences. His 2025 championship with the Illawarra Hawks stands as the clearest achievement of his independent coaching career.
Frequently Asked Questions
1. Is Justin Tatum Jayson Tatum’s biological father?
Yes. Justin Tatum is Jayson Tatum’s father, and Brandy Cole-Barnes is his mother. The relationship is documented in Jayson’s official NBA biography and established reporting about his childhood.
2. Did Justin Tatum ever play in the NBA?
No. Justin played college basketball at Saint Louis University and later played professionally in the Netherlands. His professional basketball career did not include an established NBA playing tenure.
3. Who is Justin Tatum’s wife?
Justin shares his son Jayson with Brandy Cole-Barnes, but they are not a currently documented married couple. Reliable public reporting does not clearly establish the identity of Justin’s current wife or marital status.
4. How tall is Justin Tatum?
Saint Louis University’s official basketball roster listed Justin at 6 feet 7 inches tall and 235 pounds during his college playing career. These are documented athletic measurements rather than estimates from photographs.
5. What basketball team does Justin Tatum coach in 2026?
Justin Tatum coaches the Illawarra Hawks in Australia’s National Basketball League. He became permanent head coach in February 2024 and led the franchise to the 2025 NBL championship, earning Coach of the Year honors that season.
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