Career
On 28 July 2014, she reached her highest Women's Tennis Association singles ranking of 202. On 6 October 2014, she reached her highest Women's Tennis Association doubles ranking of 485. Imanishi made her Women's Tennis Association main draw debut at the 2014 Japan Women"s Open, where she received a lucky loser entry into the main draw.
In the qualifying rounds she defeated Yurika Sema and Kanae Hisami, before eventually falling to Hiroko Kuwata.
Due to Kurumi Nara"s withdrawal from the main draw, one lucky loser spot became vacant, in addition to the four qualifier spots. Since Imanishi was the highest ranked player to lose in the qualifying round, she received the lucky loser entry.
There she lost to Jarmila Gajdošová in the first round. Singles Finals: 3 (3–0).
