U.S. Olympic pairs skaters Felicia Zhang and Nathan Bartholomay have ended their partnership.

The announcement Wednesday means both American teams that competed in Sochi have split. Two-time U.S. champions Marissa Castelli and Simon Shnapir said in May they were moving on.

Zhang and Bartholomay finished second behind Castelli and Shnapir at nationals in January, then placed 12th at the Olympics. The 25-year-old Bartholomay, from Pennsylvania, is interested in finding a new partner. The 20-year-old Zhang, from New Jersey, will attend the University of South Florida full time.

The two had competed together for three years. The United States has struggled in pairs recently as teams have failed to stay together.

Castelli and Shnapir were ninth in Sochi as the U.S. narrowly improved on its worst-ever Olympic showing in pairs four years earlier.

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