Cooper Flagg Biography 2026: Age, Height, Parents, Twin Brother, Salary, Stats & Net Worth

A detailed profile of the Dallas Mavericks forward, from his Maine upbringing and Duke season to his NBA Rookie of the Year campaign.

Cooper Flagg is an American professional basketball player for the Dallas Mavericks. Born on December 21, 2006, the 19-year-old forward became the No. 1 overall pick in the 2025 NBA Draft and won NBA Rookie of the Year after a standout 2025–26 season. His size, defensive instincts, playmaking and competitive style have made him one of the most closely watched young players in the league.

Cooper Flagg Biography: Quick Facts

These details summarize the most commonly searched questions about Cooper Flagg, including his age, height, team, family, education and professional status.

Team, height, age, draft position and regular-season averages are listed on the official NBA player profile. Contract figures are reported by Spotrac.

Early Life: Where Is Cooper Flagg From?

Cooper Flagg grew up in Newport, a small town in Maine. Basketball was a major part of family life, and he developed his game by playing with his brothers and competing in local settings. Growing up in Maine helped give him a grounded identity before his talent brought national attention.

His family background was particularly important because both parents had played college basketball. That meant Cooper had support from people who understood the demands of training, team competition and the balance between sport and everyday life.

Flagg’s rise was not based on height alone. Coaches and scouts were drawn to his motor, anticipation, defensive activity and willingness to contribute in several areas of the game. Those qualities helped him become one of the most highly regarded prospects in his class.

Cooper Flagg Parents, Twin Brother and Family

Who are Cooper Flagg’s parents?

Cooper’s parents are Kelly Flagg and Ralph Flagg. Basketball is a shared family interest: Kelly played college basketball at the University of Maine, while Ralph played at Eastern Maine Community College. Their experience helped them understand the time, discipline and competitive mindset required to develop as a player.

Kelly was part of a University of Maine women’s team that made program history by winning an NCAA tournament game in the 1998–99 season. Ralph also played the sport at the college level. Their shared background gave Cooper a close connection to basketball from an early age. For more family background, see PEOPLE’s report on Kelly and Ralph Flagg.

Does Cooper Flagg have a twin brother?

Yes. Cooper’s twin brother is Ace Flagg, who also plays basketball. The twins were born on December 21, 2006. Growing up together gave them a regular competitor and teammate at home, and their shared sport has remained a notable part of the Flagg family story.

Who is Cooper Flagg’s older brother?

Cooper also has an older brother, Hunter Flagg, who was born in 2004. The brothers grew up in Newport, Maine, in a family where basketball was a familiar part of daily life. Public coverage often highlights the close support system around Cooper as he moved from high school to Duke and then to the NBA.

High School and Education

Flagg began his high school career at Nokomis Regional High School in Maine before transferring to Montverde Academy in Florida, a school known for its nationally competitive basketball program. The move gave him access to a higher level of competition and a schedule that regularly featured elite prospects.

At Montverde, he strengthened his reputation as a two-way player. His ability to protect the rim, make plays in transition, handle the ball and score from different areas of the floor made him stand out among the country’s top recruits. He earned major high school honors and became a leading prospect in the 2024 recruiting class.

His path shows why player development is more than a highlight reel: consistent competition, coaching, physical development and decision-making all helped prepare him for college basketball.

Cooper Flagg at Duke University

Cooper Flagg played college basketball for the Duke Blue Devils during the 2024–25 season. He made an immediate impact as a freshman and became one of the most decorated players in college basketball that year.

In 37 games, Flagg averaged approximately 19.2 points, 7.5 rebounds and 4.2 assists per game, while also contributing steals and blocks. He showed that he could score, rebound, defend and create opportunities for teammates instead of relying on a single skill.

His freshman season earned him national player-of-the-year recognition, consensus first-team All-American honors and major ACC awards. Duke advanced to the 2025 NCAA Final Four, and Flagg’s performance further strengthened his status as the expected first pick in the NBA Draft.

For college roster information and Duke career context, visit the Duke Athletics player page.

NBA Draft: How Cooper Flagg Joined the Dallas Mavericks

The Dallas Mavericks selected Cooper Flagg with the No. 1 overall pick in the 2025 NBA Draft. Being chosen first overall placed him among the most anticipated young players entering the league, but it also brought the pressure that comes with being expected to help shape a franchise’s future.

Flagg entered the NBA as a versatile forward wearing jersey number 32. His size, ability to defend multiple positions, transition play and developing offensive game gave Dallas a player who could influence the game on both ends of the floor.

His first season showed that he could handle a major workload against professional competition. Rather than being used only as a spot-up scorer, he was asked to create, attack mismatches, rebound and make reads as a playmaker.

Cooper Flagg NBA Stats and Rookie of the Year

Flagg’s 2025–26 rookie season was a major milestone. According to the NBA’s player profile, he averaged 21.0 points, 6.7 rebounds and 4.5 assists per game during the regular season. He was also named NBA Rookie of the Year and earned a place on the NBA All-Rookie First Team.

These figures refer to the completed 2025–26 regular season, not the 2026–27 season. As of October 20, 2026, the new regular season is about to begin, so preseason performances should not be mixed with regular-season averages.

Latest update: October 2026

In a preseason game against the Atlanta Hawks on October 16, 2026, Flagg recorded 26 points, 12 rebounds and four assists, along with two steals and a block. It was a preseason performance, not a regular-season game. The NBA player page also reported on October 17 that Dallas had exercised the team option on his contract for the 2027–28 season.

Veteran teammate Kyrie Irving has praised Flagg’s competitiveness and two-way ability as he enters his second NBA season. The next stage of his development will be about building consistency, improving his outside shooting and continuing to grow as a decision-maker and leader.

Cooper Flagg Salary and NBA Contract

One of the most searched questions about Cooper Flagg concerns his salary. Contract reporting from Spotrac lists his rookie-scale deal with the Dallas Mavericks at approximately $62.73 million over four years. For the 2026–27 season, his listed base salary is $14,517,480.

These numbers describe his NBA contract, not the amount he takes home. Taxes, agent fees, other expenses and any separate endorsement income affect personal finances. Contract terms and team options can also change, so readers should check an up-to-date source when quoting a salary figure.

Cooper Flagg Net Worth in 2026

Cooper Flagg’s exact net worth has not been publicly verified. Celebrity wealth websites sometimes publish estimates, but without audited financial statements or direct confirmation, those numbers should not be treated as established facts.

The clearest publicly reported financial information is his NBA rookie contract. A contract worth about $62.7 million over four years is a gross contractual value spread across multiple seasons, not his current net worth. Net worth is calculated by subtracting liabilities from assets, and it cannot be determined from salary alone.

Possible sources of income for a high-profile NBA player include team salary, performance-related payments where applicable, sponsorships, endorsements and licensed merchandise. However, the exact value of Flagg’s personal endorsement agreements and assets is not publicly established in the sources cited here.

For accurate SEO content, it is better to explain this distinction than to publish a made-up net-worth number. Update this section only when a credible, attributable source provides new information.

Cooper Flagg Girlfriend, Dating Life and Personal Life

Searches for “Cooper Flagg girlfriend” and “Is Cooper Flagg married?” reflect public curiosity about the young basketball player’s life away from the court. As of October 20, 2026, there is no reliable public confirmation in the sources used for this article that he is married or that he has publicly confirmed a girlfriend.

Because Flagg is young and keeps much of his private life out of the spotlight, online speculation should not be treated as fact. This biography focuses on information that can be supported by credible reporting and official basketball sources.

Playing Style: What Makes Cooper Flagg Stand Out?

Flagg is valued for his combination of size, mobility, defensive awareness and offensive versatility. At around 6 feet 10 inches, he can contest shots near the rim while moving well enough to defend on the perimeter. His rebounding and transition effort also help Dallas create extra possessions and push the pace.

Offensively, he can attack the basket, finish in transition, make passes out of pressure and take on creation responsibilities. His rookie averages of 21.0 points, 6.7 rebounds and 4.5 assists show how many different ways he contributed in his first NBA season.

Like most young players, he still has areas to improve. Greater three-point consistency, experience against playoff-level defensive schemes and managing the physical demands of a long NBA season will be important as his career develops. His long-term ceiling is a projection, not a guarantee; the next seasons will provide more evidence.

Major Awards and Career Highlights

• 2022: Recognized as USA Basketball Male Athlete of the Year following his performance with the U.S. under-17 team.
• 2024: Earned major national high school recognition and was selected for the McDonald’s All-American Game.
• 2025: Became a consensus first-team All-American and received national player-of-the-year honors during his freshman season at Duke.
• 2025: Selected first overall by the Dallas Mavericks in the NBA Draft.
• 2026: Named NBA Rookie of the Year and selected to the NBA All-Rookie First Team.
• October 2026: Recorded a preseason double-double of 26 points and 12 rebounds against Atlanta.

What Could Be Next for Cooper Flagg?

Flagg’s second NBA season will be an important test. Opponents now have a full season of film on his strengths and tendencies, and Dallas will need him to keep developing without losing the defensive energy and versatility that made him so effective as a rookie.

Three areas to watch are his three-point shooting, how consistently he creates advantages in half-court offense, and how his role develops alongside Dallas’s veteran players. These are reasonable basketball questions, not predictions of guaranteed future awards or championships.

Frequently Asked Questions About Cooper Flagg

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Sources and Further Reading

Editorial note: This biography was prepared from the linked sources and reflects information available as of October 20, 2026. Statistics and contract figures can change. Net-worth figures are not stated as fact without reliable verification. The featured banner is an AI-generated illustration, not an official photograph.