Möldner decided upon a change of event in 2008, choosing to test her abilities in the 3000 m steeplechase. She won the German outdoor championships and achieved the Olympic qualifying time. She went on to represent Germany at the 2008 Summer Olympics and, although she did not pass the heats stage, her time of 9:29.86 was a German record. A month after, she won the bronze medal in the event at the 2008 DecaNation competition. The following year, her switch to the steeplechase began to produce results. She won her first continental gold medal at the 2009 European Team Championships with a time of 9:32.65. A win at the national championships meant she was selected for the German squad for the 2009 World Championships in Athletics. She reached the 3000 m steeplechase final, taking ninth place with 9:18.54 – improving her national record by a large margin.