New Orleans Hornets (2005–2007) Bass was drafted in the 2005 NBA draft by the
New Orleans Hornets, being taken with the 33rd overall pick. On August 24, 2005, Bass signed a multi-year contract with the Hornets. In his first season in the league, the Hornets twice assigned Bass to their
NBA Development League affiliate,
Tulsa 66ers. He ended up only playing one game in the D-League, scoring 16 points, along with 5 rebounds and 2 blocks. In his time with the New Orleans Hornets, Bass averaged 2.2 points, 2.2 rebounds, 0.2 blocks, and 8.6 minutes per game. He played a total of 50 games, having started in 4 of them.
Dallas Mavericks (2007–2009) On July 26, 2007, Bass signed a two-year deal with the
Dallas Mavericks. On March 1, 2009, Bass made a turnaround jumper to give
Jason Kidd his 10,000th career
assist. In two seasons for Mavericks, he averaged 8.4 points and 4.5 rebounds in 160 games.
Orlando Magic (2009–2011) On July 10, 2009, Bass signed a four-year deal with the
Orlando Magic. In two seasons for the Magic, he averaged 9.1 points and 4.4 rebounds in 126 games.
Boston Celtics (2011–2015) On December 12, 2011, Bass was traded to the
Boston Celtics in exchange for
Glen Davis and
Von Wafer. In his first regular season game for the Celtics on December 25, 2011, he recorded 20 points and 11 rebounds in a 104–106 loss to the
New York Knicks. On May 21, 2012, Bass tallied a playoff career-high 27 points to help the Celtics gain a 3–2 series lead over the
Philadelphia 76ers. The Celtics won that series, but were eliminated in the next round by the
Miami Heat. In the 2011–12 season, Bass established his career-high points average to 12.5 and his rebounds to 6.2 that increased the Celtics' offense and defense. On July 14, 2012, Bass re-signed with the Celtics. In January 2015, Bass re-gained his starting spot and finished the season averaging 10.6 points and 4.9 rebounds per game.
Los Angeles Lakers (2015–2016) On July 9, 2015, Bass signed with the
Los Angeles Lakers. He made his debut for the Lakers in the team's season opener against the Minnesota Timberwolves on October 28, recording 2 points and 6 rebounds in a 112–111 loss. On January 20, 2016, he scored a season-high 18 points in a loss to the Sacramento Kings.
Los Angeles Clippers (2016–2017) On July 19, 2016, Bass signed with the
Los Angeles Clippers. For the season he appeared in 52 games, averaging 5.6 points in 11.1 minutes per game.
Liaoning Flying Leopards (2017–2020) In August 2017, Bass signed with the
Liaoning Flying Leopards. Due to restrictions on international travel, Bass along with teammate
Lance Stephenson were unable to return to China in June 2020 to finish the 2019–20 season with the team. ==National team career==