Miller accepted an athletic scholarship to attend the University of Florida, where he played for coach Billy Donovan's Gators teams from 1998 until 2000. He quickly became known for his ability to hit the three-pointer. As a sophomore, Miller led the Gators to the 2000 NCAA Championship game, losing to Michigan State Spartans. After the 2000 NCAA Tournament, he declared himself eligible for the NBA draft.
Professional career
Orlando Magic (2000–2003)
The following summer, Miller was taken with the fifth overall pick in the 2000 NBA draft by the Orlando Magic. Miller won the 2001 NBA Rookie of the Year Award while being the only first-year player to appear in all 82 regular season games during the 2000–01 NBA season.
Memphis Grizzlies (2003–2008)
He was traded to Memphis midway through 2002–03 NBA season. He was the recipient of the NBA Sixth Man of the Year Award for the 2005–06 season. He averaged 13.7 points 5.4 rebounds 2.7 assists while shooting 47% from the field and 41% from three-point range, while playing 30.6 minutes per game. On January 3, 2007, Miller made nine three-pointers in a win over the Golden State Warriors, breaking Sam Mack's Grizzlies franchise record of eight in a game set in February 1999. The two previous games Miller hit seven threes. This made him the first NBA player to hit at least seven three-pointers in three consecutive games since the Dallas Mavericks' George McCloud achieved it in 1996. Miller holds the Memphis Grizzlies franchise record for most points scored in a single game, with 45 on February 21, 2007, against the Golden State Warriors. After the 2006–07 NBA season, Miller was announced as a member of the USA Basketball team.
On July 15, 2010, Miller signed a five-year $25 million contract with the Miami Heat. He injured his thumb while guarding LeBron James in practice during the pre-season, sidelining him for several weeks. Miller officially returned to the Miami Heat lineup on December 20, 2010, in a home game against the Dallas Mavericks. Miller got his first start on January 22, 2011, due to a Dwyane Wade illness, and contributed with a season-high 32 points in a win over the Toronto Raptors. Miller averaged just 2.6 points a game in 12 minutes a game during the playoffs, with a high of 12 in game 4 against the Chicago Bulls. Miller made his first career NBA Finals appearance in the 2011 NBA Finals, which the Heat lost to the Mavericks 4–2. During the 2011–12 season, Miller made six of six three point field goals in a victory over the San Antonio Spurs to finish with 18 points in his return to the Heat, after missing several games because of an injury. In the playoffs, Miller averaged 5.2 points per game, and scored in double figures at least once in each of the Heat's playoff series as Miami advanced to the NBA Finals to face the Oklahoma City Thunder. In game 5, Miller made seven three-pointers, setting the NBA Finals record for most three-pointers by a reserve. He had not made any three-pointers in the previous four games of the series. He finished with 23 points, 5 rebounds and a steal in game 5. Miami would go on to win the game and the NBA championship. During the 2012–13 season, Miller was inserted into the starting lineup 17 times and averaged 4.8 points per game for the season. The Heat would again advance to the NBA Finals, this time against the San Antonio Spurs. Miller was inserted into the last 4 games of the Finals to help space the floor, and scored 8 points in game 6 as the Heat barely squeaked out a victory. One highlight of the game was a three-pointer he made while wearing one shoe. The Heat won the series in game 7 on June 20, 2013, giving Miller his second championship. On July 16, 2013, Miller was waived by the Miami Heat via the amnesty clause.
Second stint with Memphis Grizzlies (2013–2014)
On July 30, 2013, Miller signed with the Memphis Grizzlies. He saw his minutes and his importance increase with the slightly revamped Grizzlies team led by the new coach Dave Joerger. Miller played steadily for much of the season, finishing off as the only Grizzly to play all 82 regular season games and all 7 playoff games.
Cleveland Cavaliers (2014–2015)
On August 5, 2014, Miller signed with the Cleveland Cavaliers. In Cleveland, he joined former Miami Heat teammates LeBron James and James Jones. After averaging just 1.5 points in 12 minutes per game over the first 24 games of the season, Miller made his first start for the Cavaliers on December 19, 2014 against the Brooklyn Nets as he scored 21 points on 7-of-8 three-pointers in the 95-91 win. The Cavaliers made it to the 2015 NBA Finals, but they lost to the Golden State Warriors in six games. On June 30, 2015, Miller exercised his player option with the Cavaliers for the 2016 season. On July 27, 2015, Miller was traded, along with Brendan Haywood and two future second-round draft picks, to the Portland Trail Blazers in exchange for cash considerations. On September 28, 2015, he was waived by the Trail Blazers via a contract buyout.
Denver Nuggets (2015–2017)
On September 30, 2015, Miller signed with the Denver Nuggets. Miller was instrumental in the early development of teammate Nikola Jokić. The two players share a special friendship to go along with their mentor/mentee relationship and even share the same birthday. He re-signed with the Nuggets on July 21, 2016, and was waived on July 11, 2017.
Coaching career
On April 12, 2018, Miller was hired as an assistant coach under Penny Hardaway at the University of Memphis. He spent two seasons with the Tigers and established himself as one of the top recruiters in the nation. On June 3, 2020, Miller resigned to spend time with his family.
Personal life
Miller and his wife, Jen, have three children: Two sons, Mason and Mavrick, and a daughter Jaelyn. His daughter was born during the Heat's appearance in the with a serious health issue stemming from pregnancy complications; he spent the first several days of his daughter's life shuttling between practices, games, and the hospital. He once owned a Java macaque named Sonny. He often tells the story in which his monkey escaped from his room: "You would always put him in his room, and then we'd lock the door, and then we'd put the dogs out, and then we'd lock the front door. Well, he found out how to unlock doors, unlocked his door, went downstairs, let the dogs in the house and opened the front door. About an hour later we got a call from our neighbors, saying, 'Your monkey is riding your dogs around the neighborhood.'... I said, 'C'mon y'all, y'all got to get in the house."
In 2012, Miller founded the Let It Fly Energy line of energy drinks and energy shots. In a 2012 Forbes article, he said he started the company because he wanted a healthy alternative energy drink for athletes.
