Bolbjerg had nine appearances in six FIS Freestyle World Ski Championships between 1993 and 2003. She competed at the FIS Freestyle World Ski Championships 1993 in Altenmarkt-Zauchensee, where she placed 30th in moguls. At the FIS Freestyle World Ski Championships 1995 in La Clusaz she placed 23rd, and at the FIS Freestyle World Ski Championships 1997 in Iizuna kogen, Nagano, she placed 20th in moguls. At the FIS Freestyle World Ski Championships 1999 in Meiringen-Hasliberg she placed ninth in moguls and 17th in dual moguls. She competed at the FIS Freestyle World Ski Championships 2001 in Whistler, finishing 35th in moguls, and 17th in dual moguls. Her last world championships were the FIS Freestyle World Ski Championships 2003 in Deer Valley, where she placed 19th in the moguls final, and 17th in dual moguls.