Although she started off slowly, with a number of disappointing results in the first few weeks as she worked back into race shape, the 2007 season would turn out to be Mancuso's breakout year on the World Cup circuit. She won her first World Cup race on December 19, 2006, a downhill in Val-d'Isère, France, and then took second in another downhill the next day. She went on to win three more races during the season; a super-G, a super combined, and another downhill. At the 2007 World Championships in Åre, Sweden, she won a silver medal in the super combined. After finishing on the podium in three consecutive races (2nd, 1st, 3rd) in Tarvisio, Italy, on March 2–4, 2007, she was tied for the overall World Cup lead. She eventually finished the season in third place overall, the best finish by an American woman since Tamara McKinney in 1984, until Lindsey Vonn won the overall title in 2008. Mancuso finished in second place in the 2007 season standings for both downhill and combined.