[1] Griffith's first career NHL goal was scored on October 21, 2014 against San Jose Sharks's goaltender Antti Niemi.

[7] Griffith was inserted in the Panthers scoring line, however after a positive start, found a reduced role with 5 assists in 21 games.

With the Leafs the only team vying for his services, Griffith was directly assigned to AHL affiliate, the Toronto Marlies on January 20, 2017.

[9] Griffith made the Sabres opening night roster for the 2017–18 season, however was unable to take his opportunity, producing just 2 goals in 21 games in a depth role.

[10] After two seasons within the Jets organization playing primarily for AHL affiliate, the Manitoba Moose, Griffith left as a free agent and agreed to sign a two-year, two-way contract with the Edmonton Oilers on October 9, 2020.