Borzenkova began skating at the age of five and switched from singles to pairs at 16, teaming up with Andrei Chuvilaev. Early in their partnership, they were coached by Ludmila Koblova in Moscow. They finished seventh at the 2002 European Championships and 15th at the 2002 World Championships. They formed an unusual pair due to their height, she being 168 cm tall and he 200 cm. In April 2003, they moved to Saint Petersburg and began working with Oksana Kazakova and Tamara Moskvina. The pair retired from competition in 2006.