Castelli and
Simon Shnapir teamed up in April 2006 and began training together in earnest in June. They trained in
Boston, coached by Bobby Martin, Carrie Wall (technical),
Mark Mitchell (in-betweens, polishing), and
Peter Johansson (throws). Castelli broke Shnapir's nose once while they were practicing the
twist. Castelli/Shnapir qualified for the
2008 Junior Grand Prix Final and placed sixth. The pair won the bronze medal at the
2009 World Junior Championships.
2009–2010 season In the 2009–2010 season, Castelli was off the ice for a month after she collided with an Italian while she was skating backwards and landed on his blade, resulting in 15 stitches to her inner thigh. The pair placed tenth on the senior level at the
2010 U.S. Championships and were sent to the
2010 Four Continents Championships where they also finished tenth.
2012–2013 season In 2012, Castelli/Shnapir split up for a month but decided to recommit to their partnership. They won gold at the 2012
Ice Challenge and then won bronze, their first
Grand Prix medal, at the
2012 NHK Trophy. They won their first national title at the
2013 U.S. Championships. They were assigned to the
2013 Four Continents and won the bronze medal.
2013–2014 season Castelli/Shnapir won their second national title at the
2014 U.S. Championships and were named in the U.S. team to the
2014 Winter Olympics, held in February in
Sochi, Russia. They won a bronze medal in the team event and placed 9th in the pairs event. In March, Castelli/Shnapir finished 11th at the
2014 World Championships in
Saitama, Japan. They announced the end of their partnership on May 7, 2014. == Partnership with Tran ==