After graduation, Markwood started his coaching career at his alma mater, assisting the Black Bears under Ted Woodward for six seasons before joining the staff at Vermont where he was part of the Catamounts' 2012 NCAA tournament appearance.[5] He'd then move on to Northeastern from 2014 to 2021, where he was part of two NCAA appearances in 2015 and 2019 as well as a CAA regular season and tournament title in 2015.[3] In 2021, Markwood would join Earl Grant's staff at Boston College for a single season before being named the head coach at Maine on March 21, 2022, replacing Richard Barron.[5][6][7]
National champion
Postseason invitational champion
Conference regular season champion
Conference regular season and conference tournament champion
Division regular season champion
Division regular season and conference tournament champion
Conference tournament champion