[1] Yoshida was born in Yokohama, where she taught herself how to throw the knuckleball at the age of 14 after watching Major League Baseball pitcher Tim Wakefield on television.
[14] On August 21, 2010, she was the feature story on FOX Sports' This Week In Baseball, where she was shown meeting her idol, Boston Red Sox pitcher Tim Wakefield.
Yoshida ended the 2010 season with an 0–4 record, but earned praise for her work ethic from team-mates and her manager, Garry Templeton,[4] who noted that any 18-year-old would struggle in the Golden Baseball League.
She signed a contract with the Chico Outlaws of the professional North American Baseball League in July and pitched a no-decision as her team beat the Edmonton Capitals.
In 2012, she returned to Japan to play for the Hyogo Blue Sandars [ja] of the Kansai Independent Baseball League.
[18] In June 2012, Yoshida returned to pitch for Na Koa Ikaika Maui of the North American Baseball League.
[19] Yoshida won her next two starts to begin the year with a 3–0 record, but then experienced problems controlling her pitches and lost five games in a row.
[23] In part due to injuries, in 2017 Yoshida accepted a coaching position with the women's baseball team of the Agekke Corporation.