Mackrides was selected 26th overall by the Bayhawks in the 2012 MLL Collegiate Draft.
Matt played college lacrosse at Penn State University, where he was a four year starter; recording 101 goals and 43 assists totaling 144 points, and adding 134 ground balls in 54 games. He was also named ECAC Preseason Rookie of the Year, and 3 time First Team All-CAA.
Matt attended Malvern Prep where he was named 3 time All-State, 2 time All-American, and EPSLA Player of the Year. He also lead Malvern to a State Title, and helped the USA U-19 team to a World Championship.
Matt was born on February 24, 1990 to Michael and Donna Mackrides. He graduated from Penn State University in 2012 with a degree in Communication Arts and Sciences.