On the ice from the age of ten, Blumberg trained nearly three hours every morning and a few more hours following school in Tarzana, California.[6] She switched from singles to ice dancing when she was around 19 years old and had one early partnership.[4]
Partnership with Seibert
Blumberg met Michael Seibert at the 1977 U.S. Championships in Hartford, Connecticut.[4] They soon tried out successfully but delayed the partnership for a year and a half until they had both relocated to Colorado Springs, Colorado.[7] In 2014, recalling the start of their partnership, Blumberg stated, "I knew this would be the boy I would skate with. You know when you move similar to someone, when your knees work with someone."[6]
Blumberg/Seibert finished fourth at the 1984 Winter Olympics in Sarajevo, Yugoslavia.[8] They had ranked third in the compulsory and original dances before being overtaken by Marina Klimova / Sergei Ponomarenko of the Soviet Union. The Italian judge, Cia Bordogna, scored them lower in the free dance than other judges, saying later that she considered their music unsuitable for ice dancing.[9]
Blumberg/Seibert agreed in early September 1984 to compete one more season as amateurs.[9] They were initially coached by Bobby Thompson in London and then by Claire O'Neill Dillie in Pittsburgh and New York City.[9] The two won their fifth national title, in Kansas City, Missouri, and then bronze at the 1985 World Championships in Tokyo, Japan.
Blumberg/Seibert won the 1988 World Professional title. They parted ways in 1992.[5] Although Blumberg wanted to continue performing together, Seibert decided to end their partnership in order to focus on choreography and directing.[10]
Later career
In 1992, Blumberg teamed up with Jim Yorke and skated professionally with him for 3½ years.[5] She was inducted into the U.S. Figure Skating Hall of Fame in 1996. In January 2014, she was inducted into the Southern California Jewish Sports Hall of Fame.[6]