Masako Chiba

Masako Chiba (千葉 真子) is a Japanese long-distance runner, who won the bronze medal in 10,000 metres at the 1997 World Championships in Athens and in the marathon race at the 2003 World Championships in Paris.

Chiba was a torchbearer during the 1998 Nagano Olympics Opening Ceremony.

Personal bests

 * 5000 metres - 15:20.58 min (1997)
 * 10,000 metres - 31:20.46 min (1996)
 * Half marathon - 1:09:27 hrs (1999)
 * Marathon - 2:21:45 hrs (2003)