Kristians Zelts began his hockey journey with the youth teams of Lavīna/Ogre and Valmiera before moving to Norway at the age of 16. There, he represented Kristiansand, Tønsberg Vikings, and Nes IK. He later continued his career in the United States with the El Paso Rhinos and Cheyenne Stampede, in Estonia with Tartu Välk 494, and back in Latvia with Jūrmala, Prizma, HS Riga, Lido, Olimp, Pīrāti/Ogre Juniors, and Zemgale/LBTU.
Zelts has represented Latvia at the U18 and U20 national team levels. His career achievements include two silver medals and one bronze medal in the Optibet Hockey League, as well as an Estonian championship title.
Since the 2025/26 season, Kristians Zelts has been a player for Kyiv Capitals.
