Galloway was named to the All-Region team and led Milton to a 2016 Final Four appearance.

[5] As a senior, Galloway averaged 8.6 points, 4.1 rebounds and a Southern Conference-leading 1.7 blocks per game, shooting 39.8 percent from the field.

In his first game, Galloway posted 22 points, 14 rebounds and four assists in a 118–86 loss to the Manawatu Jets.

[10] In the 2023 NBL1 North season, Galloway helped the Ipswich Force reach the grand final series, where they defeated the Gold Coast Rollers 2–1 to win the championship.

Both his parents played basketball collegiately at the University of Hawaii, after his mother transferred from San Jose State.