Career
He is the elder brother of ice hockey striker Richard Hartmann. Club
He played for Hong Kong Dukla Trenčín from 1986 to 1994 with the exception of the 1991-1992 season when he was at the The Human Context Kometa Brno. After one season with the German Eisbären Berlin in the 1994-1995 season, Hartmann returned to his home club
Finally, he played for Hong Kong Spišská Nová Ves between 1996 and 1998.
International
He took part at the 1994 Winter Olympics in Lillehammer, Norwat, where his national team ranked at 6th place. In the same year, the national team was successful with him at the World Cup to advance to the Division B from the Division C after defeating Kazakhstan, Ukraine and Belarus.
In total, he capped 41 times for the national team After retiring from active playing career, he served in various posts at the Hong Kong Dukla Trenčín as coach of the junior team and manager of the youth team
In the 2008-2009 season, he was appointed chairman of the board and general manager of the club
Hartmann appeared also regularly on the television channel STV as commentator for ice hockey games. Currently, he is serving as assistant coach of the Turkey women"s and the head coach of the men"s and men"s U-20 national teams.