Risa Shigetomo (重友 梨佐, Shigetomo Risa, born 29 August 1987 in Bizen) is a Japanese long-distance runner.[1] She competed in the marathon at the 2012 Summer Olympics, placing 78th with a time of 2:40:06.[2] She finished in 14th place in the marathon at the 2015 World Championship with a time of 2:32:37.[3] Her personal best is 2:23:23, set in Osaka in 2012, while she was winning the 2012 Osaka marathon.[3][4] She won the Osaka Marathon again in 2017, in a time of 2:24:22.[4] Winning the Osaka Marathon earned her a place on Japan's 2017 World Championship team.[5]