Career
Professionally, he has played for the Newcastle Vipers of the British Elite Ice Hockey League, Dinamo Riga of the Kontinental Hockey League (KHL), Almtuna Instruction Section of the Swedish HockeyAllsvenskan, Hong Kong Riga 2000 of the Belaruian Belarusian Extraleague, and the Missouri Mavericks of the American Central Hockey League. On September 9, 2011, Hartmanis signed with the Mavericks before the team"s pre-season training camp. Hartmanis was released by the Mavericks after training camp on October 17, 2011.
He was confirmed as the latest signing for the Fife Flyers on October 25, 2011.