Harrington was acquired by the Bayhawks with the 64th overall pick in the 2014 MLL Supplemental Draft.
Harrington was drafted 73rd overall by the Ohio Machine in the 2013 MLL Supplemental Draft. He appeared in 5 games with the Machine, and recorded 2 goals and 1 assist totaling 3 points.
Harrington saw time at the University of Maryland and Hobart before finding a home at Towson University. He was a two-time First Team All-CAA winner, and was named to the 2010 CAA All-Tournament Team.
Harrington was a three-sport star at Friends School in Baltimore, MD. He was named All-MIAA and second team All-Baltimore City in lacrosse, and was a two-time All-MIAA selection in football.
Harrinton was born in Nehdam, Massachusetts to Scot and Barb Harington on October 3, 1986. He graduated from Towson University in 2009 with a degree in Economics.