Maggette, a 6 ft 6 in (1.98 m), 225 lb (102 kg; 16.1 st) small forward, played college basketball for Duke University where as a freshman in 1998–99, he averaged 10.6 points and 3.9 rebounds per game and was named to the ACC All-Rookie Team.

In July 2000, Maggette signed a sworn statement that as a high schooler, he accepted $2,000 from his Amateur Athletic Union summer league coach Myron Piggie, a move that put his eligibility at Duke in question.

[4] On June 28, 2000, Maggette was traded, along with Keyon Dooling, Derek Strong, and cash considerations, to the Los Angeles Clippers in exchange for a 2006 first-round pick.

During his career with the Clippers, Maggette, whose teammates nicknamed him "Maximus,[5]" established himself as a solid forward and developed into a perennial 15+ per game scorer.

Maggette participated in the Slam Dunk Contest at the 2001 NBA All-Star Weekend and experienced a good year in 2004–05, touting career-highs in points, rebounds, assists and free throw percentage.

Maggette had a career-high night against the Los Angeles Lakers on April 12, 2007, scoring 39 points to secure a 118–110 victory after recovering from a 17-point deficit.

[17][18] After missing the first eight games of the 2012–13 season while nursing a calf injury suffered in preseason, Maggette made his Pistons debut on November 14, recording 9 points and 3 assists off the bench in a 94–76 win over the Philadelphia 76ers.

[19] Following the 2012–13 season, he became a free agent and subsequently signed a training camp deal with the San Antonio Spurs on September 30, 2013.

Led by Naismith Memorial Basketball Hall of Famer Nancy Lieberman as coach and league MVP Maggette's 27 points, team Power won the championship game 51–43.

In June 2006, he also established "Corey Cares Foundation" to serve, mentor and inspire the less fortunate in the community of basketball and sports.