A professional competitor between 2000 and 2016, Yoshimoto held the RISE super lightweight title and was the 2007 Pancrase Neo Blood Featherweight Tournament winner.
[2] After capturing the inaugural title, Yoshimoto faced Naoki in a non-title bout at RISE 63 on April 7, 2010.
[5] Yoshimoto faced Yuto Watanabe in his third consecutive non-title bout at RISE 71 on October 3, 2010.
[9] After making his first title defense, Yoshimoto faced Shohei Asahara at K-1 WORLD MAX 2011 –63 kg Japan Tournament FINAL on June 25, 2011.
Yoshimoto extended his winning streak to two fights with a third-round knockout of Daniel Zahra at RISE 105 on May 31, 2015.
[15] This winning streak was snapped by Hiroki Shishido at SHOOT BOXING 30th ANNIVERSARY "CAESAR TIME!"