Upon graduating from high school, he signed a contract with the Cleveland Cavaliers club. In the first match of the first season, he scored 25 points against Sacramento Kings, setting an NBA record for the score scored by an unprofessional player.
In the 2003-2004 season, James made history by becoming the first member of the Cavalier franchise to win the NBA Rookie of the Year award. James participated in the first NBA All-Star game tournament in 2004, 2005. Contributed 13 points, 8 rebounds, and 6 assists in the victory for the Eastern Conference.
In 2005, he made NBA history once again as the youngest player to score more than 50 points in a match. In 2006, James and Cavaliers entered the play-off round and won the Eastern Conference (Eastern Federation) for the first time.
James was awarded the MVP All-Star Game Award for the second time in the 2007/08 season. This was after a performance of 27 points, 8 rebounds, and 9 assists. At that time, the Cavaliers club made it to the playoffs but were still defeated by the Boston Celtics.
In the 2008/09 season, James was voted the best player of the year. Besides, his team won his NBA All-Defensive Team. In the 2009/10 season, he scored 29.7 points on average, 7.3 rebounds, 8.6 assists, 1.6 steals, and 1 block.
Through a live broadcast called “The Decision”, Lebron James leaves the Cavs and announces that he will sign a contract with Miami Heat
In 2010-2011, James averaged 26.7 points, 7, 5 rebounds, and 7 assists for each match. Although the Miami Heat received a lot of criticism, they still made it to the playoffs. It seemed these criticisms have a strong impact on him. So, in the final, he only scored an average of 17.8 points per game.
From 2011 to 2012, Lebron James won the MVP title for the 3rd time, bringing Miami Heat to the championship. In the 2012-2013 season, James averaged 29.7 points and 7.8 assists per game, fueling a 27-match winning streak for Miami Heat.
On March 3 of the 2013/14 season, James set a new record with a 61 points in the match against Charlotte Bobcats. Lebron James has re-signed with Cleveland Cavaliers and is accompanied by Kyrie Irving and Kevin Love.