Masako Chiba

Masako Chiba is a Japan long-distance runner, born on July 18, 1976 in Uji, Japan. Standing 1.56 m, She competes primarily in the 5000m, 10000m and Semi.

Her personal bests include 15:20.13 in the 5000m, 31:20.46 in the 10000m, 1:06:43 in the Semi, 2:21:45 in the Marathon and 49:03 in the 15Kilometr. She has earned 3 bronze medals in major international competitions. She is currently active on the international athletics circuit, representing Japan.