She won the silver medal in half marathon at the 1999 Summer Universiade. At the 2001 Summer Universiade she finished eighth in the 5000 metres and won the bronze medal in the 10,000 metres. She finished twentieth in the 10,000 metres at the 2008 Olympic Games, but was less successful in the women's 5000 metres, failing to make the final. Her next global competition came at the 2009 World Championships in Athletics, where she finished 31st in the World Championship marathon race. She also ran at the 2009 IAAF World Half Marathon Championships, but failed to make an impact in either the individual race or with the Japanese team.