Jack attended Rice high school in Manhattan where he was a NYSSWA First Team All-State and New York Daily News All-City selection after averaging 16.5 points-per-game as a senior, being mentioned as a four star recruit by Rivals.com and both the Number.
He played college basketball for Rutgers. 33 overall prospect and Number. 7 power forward in the country.
After four years at Rutgers, Jack, a team captain for the Scarlet Knights, graduated with 1,044 career points.
During his senior campaign, he averaged 13 points and 6.4 rebounds in 31.1 minutes-per-game, earning All-Metropolitan honors for a second consecutive year. After going undrafted in the 2015 National Basketball Association draft, Jack signed with the Indiana Pacers on October 7, 2015.
However, he was waived by the Pacers on October 24 after appearing in one preseason game. Five days later, he was acquired by the Fort Wayne Mad Ants of the National Basketball Association Development League as an affiliate player of the Pacers.
On January 4, 2016, he was traded to the Reno Bighorns in exchange for the returning player rights to Christian Watford.
The son of Louisa Hall, Jack majored in journalism and Mass Media Studies.
