She rose to prominence with a gold medal on the track over 3000 metres at the 1981 Asian Athletics Championships and by winning the inaugural 20 km women's race at the Sapporo Half Marathon event. She continued to focus on road events and won at the 1982 Chiba Marathon and the 1983 Nike OTC Marathon. Her 2:30:30 at age 19 in that race was the World Junior Record. She was the runner-up at the 1984 Osaka Ladies Marathon, a result which led to her the starting line of the first Olympic women's marathon. Among her other results, she was third at the 1989 Hokkaido Marathon and took 19th place at the 1990 London Marathon.