Sims played for Mt. Saint Joseph High averaging 19 points and 13 rebounds as a senior. He led his team to three BCL and MIAA Championships and earned Player of the Year and All Metro honors.
College career
Sims played for four years at Georgetown where he played in 104 games, starting 17, averaging 3.8 points, 2.6 rebounds. He had his best year as a senior, averaging 11.6 points, 6.0 rebounds and 3.5 assists per game connecting on 46.3 percent of his field goals.
On March 3, 2013, Sims signed a 10-day contract with the New Orleans Hornets. He appeared in two games for the Hornets recording a total of four points and two rebounds. He was released by the Hornets on March 12, 2013 and returned to the BayHawks. On April 1, 2013, his contract was bought out by the BayHawks, and a day later, signed with the Petron Blaze Boosters of the Philippines.
He joined the Charlotte Bobcats for the 2013 NBA Summer League. On September 30, 2013, he signed with the Cleveland Cavaliers. On December 5, 2013, he was assigned to the Canton Charge of the NBA D-League. He was recalled by the Cavaliers on December 9. On December 11, he was reassigned to Canton. He was recalled the next day.
On February 20, 2014, Sims was traded to the Philadelphia 76ers along with Earl Clark and two future second-round picks in exchange for Spencer Hawes. On March 22, 2014, Sims recorded 18 points and a career high 15 rebounds in an 81-91 loss to the Chicago Bulls. On April 4, 2014, Sims recorded a career high 24 points in a 111-102 win over the Boston Celtics.
On September 16, 2015, Sims signed with the Phoenix Suns. However, he was later waived by the Suns on October 24 after appearing in all six of the team's preseason games. On November 12, he was acquired by the Grand Rapids Drive of the NBA Development League. On November 14, he made his debut for Grand Rapids in a 113–101 win over the Delaware 87ers, recording 15 points, seven rebounds, one assist and one block in 19 minutes off the bench.
On March 17, 2016, Sims signed a 10-day contract with the Brooklyn Nets. Two days later, he made his debut in a 115–113 loss to the Detroit Pistons, recording 10 points, eight rebounds, one steal and one block in 20 minutes off the bench. On March 27, he signed a second 10-day contract with the Nets, and on April 6, he signed with the team for the rest of the season.
On September 22, 2016, Sims signed with the Utah Jazz, but was waived on October 20 after appearing in three preseason games. On October 31, he was acquired by the Salt Lake City Stars of the NBA Development League. On December 12, Sims early terminated his contract with Salt Lake City. In 11 games, he averaged 18.2 points, 8.3 rebounds and 2.0 assists in 29.7 minutes.
On August 6, 2019, he has signed contract with Fortitudo Bologna of the Italian Lega Basket Serie A. Sims averaged 15.1 points and 8.9 rebounds per game. He opted out of his deal on July 7, 2020.
Incheon Electroland Elephants (2019–present)
On July 8, 2020, Sims signed with the Incheon Electroland Elephants.
Career statistics
NBA
Regular season
PBA
Personal life
Sims is the son of Brenda and Henry Sims Sr., and the step-son of Terry Awkward. He has four siblings, Myra Moore, Karigan Awkward, Brandon Awkward, and Datren Awkward.
