Whack was most notably named the league's Rookie of the Year for the 2014–15 season, while playing for the Island Storm.[2] Following his good rookie season he signed to play for a second season for the Storm.[2] In the summer of 2016, Whack signed for BC Winterthur of the LNBA.[3] He led the league in scoring during the 2016–2017 season with an average of 21.4 points per game.[4][5] He returned to the Storm in April and finished the season with them.[4]
In September 2017, Whack signed for Grindavík of the Úrvalsdeild karla.[5][6] Whack was released by Grindavík on December 12, after averaging a team leading 22.8 points in 10 games.[7] He later signed with the Cape Breton Highlanders and averaged 8.0 points per game in the 2017–18 season.[8]
Whack was born on January 22, 1991, to Theresa Lewis and Larry Whack and has a brother. His godfather is actor Martin Lawrence. Whack appeared in the film Rebound, in which Lawrence starred.[6] Outside of basketball, he likes music and drawing.[1] He majored in accounting while attending Mount St. Mary's University.[10]