Pryma began competing internationally in 2006 but he participated only in junior competitions. He debuted at World Cup on January 14, 2010, in German Ruhpolding where he was 41st in sprint. Then he started in relay together with his brother Roman but Roman screwed it up and had a penalty loop. Team finished 12th in that race. His first World Cup points he earned next year. At 2011 World Championships he was 25th in individual race.