How Late Growth Spurts Turned Overlooked Freshmen into NBA Stars
In basketball, height can feel like destiny, but some of the game’s greatest players weren’t born giants. They were average-sized teens, often overlooked, underestimated, or even cut from teams. Then, seemingly overnight, they shot up inches in high school, transforming not just their bodies but their futures.
A late growth spurt can turn a scrappy guard into a dominant forward, a nimble point guard into a nightmare matchup, or a lanky teenager into a Hall of Famer. But size alone isn’t enough. Behind every jaw-dropping jump in height is grit, skill, and relentless preparation, the secret ingredients that allow these players to dominate once their bodies catch up to their ambitions.
In this article, we explore the NBA legends who grew 10 inches or more in high school, and the honorable mentions who added 7–9 inches, showing how these growth spurts, paired with talent and work ethic, changed the course of their careers forever.
Teenagers Who Grew 10 Inches or More: From Overlooked to Unstoppable
Some high school growth spurts are so dramatic they redefine a player’s entire future. These athletes didn’t just grow taller; they learned, trained, and adapted, turning newfound height into NBA dominance.
Michael Jordan
Freshman Height: 5’8”
Adult Height: 6’6”
Growth: 10 inches
Michael Jordan wasn’t born “His Airness.” As a freshman, he was a scrappy 5’8” guard who faced early setbacks, including being cut from his varsity team. To scouts and peers, he was average-sized, overlooked, and underestimated.
By his senior year, Jordan had grown to 6’6”, already his adult height. But height alone wasn’t the secret to his dominance. Jordan spent countless hours perfecting fundamentals: shooting mechanics, footwork, conditioning, and stamina. He combined a physical leap with relentless preparation, developing coordination and agility that could have been lost with such a rapid spurt.
Jordan’s growth is also striking when viewed against his family background, explored in tall NBA players who defied their short parents.
Anthony Davis
Freshman Height: 6’0”
Adult Height: 6’10”
Growth: 10 inches
Anthony Davis wasn’t the tallest freshman in high school, but at 6’0”, he had already begun developing guard-level skills, including ball-handling, footwork, and shooting. This early mastery would prove crucial when his body suddenly caught up to his abilities.
By senior year, Davis shot up 10 inches to 6’10”. Unlike many late bloomers who lose coordination with rapid growth, Davis maintained agility, coordination, and versatility, allowing him to dominate as a forward and center. His growth, combined with prior skill training, made him a matchup nightmare in high school, college, and ultimately the NBA, where he became known for shot-blocking, scoring, and incredible athleticism.
Growing taller was only part of his development. His subsequent strength work in New Orleans features among the most remarkable NBA body transformations, tracing how he added size to his slender rookie frame.
Dennis Rodman
Freshman Height: 5’9”
Adult Height: 6’7”
Growth: 10 inches
Dennis Rodman entered high school as a wiry 5’9” guard, often overlooked for his size and unconventional style. He wasn’t the type to dominate scoring, and his lanky frame left him vulnerable against bigger, stronger players. But Rodman’s fearless energy and relentless drive distinguished him early; he was willing to dive for every loose ball and outwork opponents on defense.
During his high school years, Rodman shot up 10 inches, eventually reaching 6’7”. This growth unlocked physical advantages he had lacked, giving him the wingspan and presence to dominate rebounds and defend multiple positions. However, what truly set him apart was his unmatched work ethic and agility, which allowed him to leverage his new size without losing coordination.
Malachi Flynn
Freshman Height: 5’2”
Adult Height: 6’1”
Growth: 11 inches
Malachi Flynn entered high school as one of the smallest players on the court at 5’2”, relying heavily on ball-handling, speed, and basketball IQ to compete. His size meant he often faced taller defenders and had to think faster, move smarter, and develop skills earlier than most peers.
By senior year, Flynn had grown to 6’1”, his adult height. This 11-inch growth didn’t just make him taller; it amplified his court vision, ability to finish over defenders, and defensive versatility. Flynn’s late spurt, paired with his pre-existing skills, allowed him to transition seamlessly to college basketball and prepare for an NBA career as a highly effective guard.
Žydrūnas Ilgauskas
Freshman Height: 6’4″
Adult Height: 7’3″
Growth: 11 inches
Žydrūnas Ilgauskas didn’t simply grow tall. His teenage growth spurt completely changed what kind of athlete he could become. At 15, Ilgauskas was around 6’4″ and had already experimented with different sports and positions, even playing point guard. Then he quit basketball for about a year, having lost interest in the sport and wanting to spend time on other things.
During that year, everything changed. Ilgauskas later recalled, “I skyrocketed in the summer, like I grew up like 6 or 7 inches.” When he returned to school the following year, his coach saw him and immediately wanted him back on the basketball team. The boy who had walked away from basketball had returned dramatically taller. He wasn’t finished growing either. Ilgauskas continued to add height until he eventually reached 7’3″, turning an already tall teenager into one of the NBA’s tallest centers.
Jeremy Lin
Freshman Height: 5’3”
Adult Height: 6’3”
Growth: 12 inches
Jeremy Lin’s journey began as a 5’3” freshman navigating cultural and physical challenges. In a competitive basketball environment, he was often underestimated; many saw him as too small and lacking athleticism for high-level play. Yet Lin’s relentless practice, focus on fundamentals, and resilience set him apart from his peers.
Over high school, Lin experienced a 12-inch growth spurt, reaching 6’3” by senior year, giving him the physical presence to compete with taller athletes. More importantly, he paired his newfound height with elite court vision, ball-handling, and shooting, allowing him to thrive in AAU, college, and ultimately the NBA, where he famously sparked “Linsanity.”
Dwight Howard
Freshman Height: 5’10”
Adult Height: 6’10”
Growth: 12 inches
Dwight Howard entered high school as a 5’10” guard-like forward with athletic promise but limited size. He relied on explosiveness and timing, but the lack of height constrained his ability to dominate in the post or control the paint.
Between freshman and senior year, Howard shot up 12 inches to 6’10”, instantly giving him a presence few could match. However, what turned this growth into a professional advantage was his commitment to athletic development, shot-blocking, and rebounding skills. He didn’t just grow taller; he became a player capable of controlling games defensively and intimidating opponents.
CJ McCollum
Freshman Height: 5’2”
Adult Height: 6’3”
Growth: 13 inches
CJ McCollum entered high school as one of the nation’s shortest freshmen at 5’2”. His size made him invisible to recruiters, and he often competed against players much taller. But instead of giving up, McCollum doubled down on skill development, focusing on shooting mechanics, spacing, and basketball IQ.
Between freshman and senior years, McCollum shot up 13 inches, reaching 6’3”, his adult height. This sudden growth didn’t just improve his physical ability; it transformed his offensive game, allowing him to score over taller defenders, see the floor differently, and become a polished scorer ready for college and the NBA.
Manu Ginóbili
Freshman Height: ~5’5”
Adult Height: 6’6”
Growth: ~13 inches
Manu Ginóbili’s growth story is legendary, even if exact numbers are debated. Reportedly, he grew around 13 inches in his late teens, a massive transformation for any athlete.
What made Ginóbili extraordinary was that he retained guard-like skills after his growth. Even as his frame expanded, he could dribble, pass, shoot, and move with agility uncommon for his height. This rare combination of size and skill allowed him to play multiple positions, innovate on the court, and become one of the most versatile and creative players in NBA history.
David Robinson
Freshman Height: 5’9”
Adult Height: 7’1”
Growth: 16 inches
David Robinson’s growth story is nothing short of legendary. At 5’9” as a freshman, he was tall for his age but far from the dominant center he would become. His body was still developing, and while he had the fundamentals, he lacked the size to command the paint or intimidate opponents physically.
Then, in a dramatic late adolescent spurt, Robinson shot up 16 inches to 7’1”, his eventual adult height. Such a massive growth could have compromised coordination, but Robinson paired it with rigorous conditioning, strength training, and skill refinement, mastering footwork, timing, and fundamentals to complement his new frame.
The result? “The Admiral” became a dominant force in college and the NBA, winning MVP honors, leading his team to championships, and proving that extreme growth, when harnessed with discipline and skill, can catapult a player to superstardom.
Honorable Mentions: 7–9 Inch Growth Spurts That Shaped Careers
Not every growth spurt is a double-digit leap, but even moderate height increases can completely change a player’s trajectory. These athletes grew 7 to 9 inches in high school, enough to complement their skills and unlock new opportunities on the court.
For these players, the growth wasn’t just physical; it was a springboard for skill development, confidence, and NBA readiness. Some were already talented guards who became versatile wings; others were forwards or centers whose late growth gave them the size to dominate at higher levels.
Below, we explore these honorable mentions, from the tallest growth spurt to the more modest increases, showing how even a few inches, paired with dedication, can shape a future NBA star.
Damian Lillard
- Freshman Height: 5’5”
- Adult Height: 6’2”
- Growth: 9 inches
Late growth gave Lillard the frame to complement his elite shooting and playmaking. Even as a small freshman, his work ethic and court vision hinted at future NBA stardom.
Kelly Olynyk
- Freshman Height: 6’3”
- Adult Height: 7’0”
- Growth: 9 inches
Olynyk combined early skill development with a massive late spurt, turning him into a versatile big man capable of shooting, passing, and stretching the floor.
Tim Duncan
- Freshman Height: 6’3”
- Adult Height: 6’11”
- Growth: 8 inches
Duncan’s late growth gave him the size to dominate the post, but his fundamentals and basketball IQ made him an all-time great.
Kevin Durant
- Freshman Height: 6’3”
- Adult Height: 6’11”
- Growth: 8 inches
Durant paired his height gain with elite shooting and agility, creating a matchup nightmare for defenders at every level.
Paul George
- Freshman Height: 6’0”
- Adult Height: 6’8”
- Growth: 8 inches
George used his growth to expand his wingspan and versatility, becoming one of the NBA’s most complete two-way wings.
Gordon Hayward
- Freshman Height: 5’11”
- Adult Height: 6’7”
- Growth: 8 inches
Hayward’s growth spurt complemented his early guard-level skills, allowing him to seamlessly play multiple positions.
Stephen Curry
- Freshman Height: 5’6”
- Adult Height: 6’2”
- Growth: 8 inches
Curry’s height gain helped him compete physically, but his shooting, IQ, and agility remained the keys to his success.
Dwyane Wade
- Freshman Height: 5’8”
- Adult Height: 6’4”
- Growth: 8 inches
Wade’s growth spurt paired with explosive athleticism, helping him dominate as a slashing guard in high school, college, and the NBA.
Larry Bird
- Freshman Height: 6’1”
- Adult Height: 6’9”
- Growth: 8 inches
Bird combined late growth with elite skill and shooting, giving him the physical tools to match his legendary work ethic.
Russell Westbrook
- Freshman Height: 5’8”
- Adult Height: 6’3”
- Growth: 7 inches
Westbrook’s growth added size to his explosive athleticism, helping him become a dynamic, triple-double machine in the NBA.
Kyrie Irving
- Freshman Height: 5’7”
- Adult Height: 6’2”
- Growth: 7 inches
Irving’s late growth gave him the frame to match his elite ball-handling and scoring skills, turning him into one of the league’s most creative point guards.
Conclusion: Growth Isn’t Just Physical
Height can change a player’s prospects, but these stories show it’s never just about inches. For the legends on the 10-inch+ list, a massive growth spurt paired with relentless skill development and mental toughness created future NBA stars. For the honorable mentions, a few extra inches in high school combined with early skill mastery and work ethic were enough to transform potential into professional success.
The lesson is clear: growth, whether it’s 10 inches or 7, is a springboard, not a guarantee. It’s how players leverage their physical changes, refine their craft, and embrace the grind that turns late bloomers into game-changers. From Michael Jordan to Damian Lillard, Russell Westbrook to Kelly Olynyk, these athletes prove that a few inches can make a difference, but mindset, skill, and hard work define greatness.
For a broader look at what players achieved at their eventual heights, explore the best NBA players at every height.