Galloway attended Christian Life Academy in Baton Rouge, Louisiana, where he was a two-time District 7 1-A Player of the Year. As a junior in 2008–09, he averaged 21.3 points, five rebounds and three assists per game. As a senior in 2009–10, he averaged 26.2 points, five assists and five steals per game as he helped CLA win the Class 1A title and earned Class 1A All-State first team honors.
College career
In his freshman season at Saint Joseph's, Galloway earned Atlantic 10 All-Rookie team and Philadelphia Big 5Rookie of the Year honors. He was also named the Hawks' Co-MVP as he shared the John P. Hilferty Award with Carl Jones. In 33 games, he averaged 12.8 points, 5.5 rebounds, 2.9 assists and 1.7 steals in 34.3 minutes per game. In his sophomore season, he was named to the All-Atlantic 10 second team and All-Big 5 first team. In addition, he received the John P. Hilferty Award as SJU's MVP for the second straight year. In 34 games, he averaged 15.5 points, 4.5 rebounds, 2.2 assists and 1.0 steals in 35.7 minutes per game. In his junior season, he was named to the inaugural All-State NABC Good Works Team for his community involvement while also being named to the All-Big 5 second team. In 32 games, he averaged 13.8 points, 3.6 rebounds, 2.3 assists and 1.4 steals in 35.7 minutes per game. In his senior season, he was named to the All-Atlantic 10 first team, All-Big 5 first team, NABC All-District 4 first team, and the Atlantic 10 All-Championship team for the conference champion Hawks. He was also co-recipient of the John P. Hilferty Award as SJU's MVP, earning Most Valuable honors for the third time. In 34 games, he averaged 17.7 points, 4.3 rebounds, 1.6 assists and 1.1 steals in 36.2 minutes per game. Galloway finished his college career as the second all-time leading scorer in Hawk history with 1,991 points, as well as the all-time leader in career three-pointers with 343.
After going undrafted in the 2014 NBA draft, Galloway spent Summer League and preseason with the New York Knicks. He joined New York's NBA Development League affiliate team, the Westchester Knicks, in November. After two months with Westchester, he was called-up by New York on January 7, 2015, who signed him to a 10-day contract. He made his NBA debut that night, recording seven points, two rebounds, three assists and one steal in a 101–91 loss to the Washington Wizards. He made his second appearance for the Knicks the following night, scoring 19 points in a 120–96 loss to the Houston Rockets. He signed a second 10-day contract with the Knicks on January 17, and then a partially guaranteed, two-year deal on January 27. On April 13, he scored a career-high 26 points and hit all six of his 3-pointer attempts in a 112–108 win over the Atlanta Hawks. At the season's end, he was named to the NBA All-Rookie second team, becoming the first undrafted player in Knicks history to make an NBA All-Rookie team. By mid-November of the 2015–16 season, Galloway led the team and ranked fourth in the NBA in fourth-quarter minutes played, having earned trust and faith from coach Derek Fisher. He was also among the NBA's leaders in 3-point field goal percentage over the first three weeks of the season. On January 26, 2016, he scored a season-high 21 points in a 128–122 overtime loss to the Oklahoma City Thunder. He appeared in all 82 games for the Knicks in 2015–16.
On July 21, 2016, Galloway signed with the New Orleans Pelicans. On November 19, he scored 23 points and tied a career high with six 3-pointers in a 121–116 overtime win over the Sacramento Kings. On December 5, he hit six 3-pointers and scored a season-high 26 points in a 110–108 double-overtime loss to the Memphis Grizzlies.
On July 6, 2017, Galloway signed a three-year, $21 million contract with the Detroit Pistons. The 2017–18 season saw Galloway record the lowest field-goal and 3-point percentages of his career, as well as the lowest average minutes of career. He appeared in just 58 games, with him not playing in 12-of-14 games from March 7 to April 4. On December 12, he scored a season-high 18 points in a 103–84 loss to the Denver Nuggets. On December 9, 2018, Galloway scored a season-high 24 points in a 116–108 loss to the New Orleans Pelicans.
Career statistics
NBA
Regular season
College
Personal life
Galloway is the son of Larry and Jeralyn Galloway. His uncle, Geoff Arnold, was his assistant coach at Saint Joseph's before being named assistant coach of Rider University.
