Career
Mason-Griffin usually plays as point guard. He played college basketball for the Oklahoma Sooners. Ratiopharm Ulm (2011–2015)
He signed with the German team ratiopharm Ulm for the 2011–2012 season.
Due to injuries, he missed the complete 2012-2013 season.
Mason-Griffin wouldn"t play in the 2013-2014 season as well. Foreign the 2014-2015 season, he returned to ratiopharm Ulm, and played 10 BBL games that season.
Donar (2016)
On December 15, 2015, Mason-Griffin signed with Donar Groningen in the Netherlands. On January 11, 2016, Donar and Mason-Griffin parted ways.
He played one game for Donar, in which he had 8 points and 6 assists.