Cooper Flagg’s life will be forever changed after Wednesday night. The Duke product is poised to take the league by storm as the most highly anticipated prospect in the 2025 NBA Draft. At 6’8″ with elite athleticism, court vision and defensive instincts, the 18-year-old forward has already drawn comparisons to some of the league’s all-time greats. After dominating his freshman season and impressing in pre-draft workouts, Flagg is a lock to be the No. 1 overall pick to the Dallas Mavericks.
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Who are his siblings? Does he have a twin?
The multifaceted big man has the potential to be a generational talent, but he’s far from being the only hooper in his family. Cooper has two brothers, a fraternal twin, Ace, and an older brother, Hunter. The twins spent the 2023-24 season playing together at Monteverde Academy before Ace transferred to Greensboro Day School for his senior campaign.
Ace may not be the surefire prospect Cooper is, but he’s forging his own path in the sport. While Cooper reclassified and is set to be the youngest top pick since LeBron James in 2003, Ace completed a full four-year high school career. A three-star recruit, scouts ranked him 74th among power forwards. He’s set to begin his college journey at the University of Maine for the 2025-26 season.
Hunter, meanwhile, was a senior in high school during the twins’ freshman year at Nokomis Regional High School, where the trio won the Maine Class B championship game. Hunter also attends the University of Maine as a junior, where he’s studying sports management.
Cooper Flagg’s parents
The Flagg boys didn’t magically become star athletes. Both of their parents have backgrounds in sports as well. Their mother, Newport, Maine native Kelly Flagg, was a standout hooper at Nokomis High. She demonstrated her all-around game and competitive drive there.
She went on to play at the University of Maine. The 5’10” forward won three conference titles and served as team captain in 1999. Kelly was part of a historic team that upset Stanford in the NCAA tournament. After college, she coached the Nokomis girls varsity team. So her passing on her love of basketball to her sons is no fluke.
Ralph Flagg, like his wife, attended Nokomis Regional High. He played college basketball at Maine Technical College (now Eastern Maine Community College). He met Kellywhile he was playing in a men’s league at the community center. The couple connected through their shared passion for the sport.
The Flaggs clearly have basketball in their blood. And now, the family’s years of hard work and dedication are paying off. Cooper will have the chance to represent the Flaggs on the game’s biggest stage.
