Career
He is currently playing with the Chicago Blackhawks of the National Hockey League. Hartman was selected by the Blackhawks in the first round (30th overall) of the 2013 National Hockey League Entry Draft. He made his National Hockey League debut on February 13, 2015 against the New Jersey Devils after being recalled from the Rockford Icehogs of the American Hockey League.
Hartman was rated as a top prospect, fulfilling the expectation to be a first round selection at the 2013 National Hockey League Entry Draft.
Hartman joined the Plymouth Whalers of the Ontario Hockey League for the 2012-2013 OHL season and was invited to take part in the CHL Top Prospects Game. He was then selected to play with the Gold Medal winning American squad at the IIHF World U20 Championship.
On November 18, 2013, the Chicago Blackhawks signed Hartman to a four-year entry-level contract. Hartman made his National Hockey League debut on February 13, 2015, against the New Jersey Devils.
Hartman competed for the United States in the 2012 U18 WJC. He recorded six points, two goals and four assists, in six games.
Hartman played for the United States. in the 2013 World Junior Championships. He accumulated three points, 2 goals and an assist, in seven games. Hartman posted four points with the United States. team in the 2014 WJC, two goals and two men assists, in five games.
