DOB: 5 October 1995
From: Devon Meadows/Dandenong Stingrays, Selection #2 2013 Rookie Draft
Games: 122* (to end 2021)
Melbourne used the second overall pick in the 2013 Rookie Draft on a lifelong Demons fan who had impressed with an outstanding TAC Cup playing in the Dandenong midfield. Before his TAC Cup career began, Harmes played eight games in the Devon Meadows senior team as a 16-year-old.
Debuted midway through 2015, playing eight of the last nine games of the season. In 2016 he consolidated his position in the side, playing 19 games and receiving a Rising Star nomination. Played a further 17 games the next year for 14 goals, used both in defence and attack.
Signed a two year contract extension in mid-2018, and had a career-best season. He played every game for the year, and became a vital cog in his side's midfield during the season including a number of high profile tagging jobs. He was prominent again in 2019, used more as a standard midfielder than a tagger, including 35 touches against Collingwood on Queen's Birthday.
Further extended his contract at the end of 2019, adding another four years after finishing fourth in the best and fairest. His 2020 was less successful, a move into defence failed to pay off and for the first time since becoming a full-time midfielder he found himself out of favour, and often out of the side.