Career
After being unbeaten in 5 bouts (4 wins and a draw), Shingaki challenged Dodie Boy Penalosa for the vacant IBF light flyweight title on December 10, 1983. Unfortunate for him, he was knocked out in 12 rounds and met his first setback. On his second defense, Shingaki fought Australia"s Jeff Fenech on 26 April 1985 at the Horden Pavilion in Sydney.
They met again on August 23 in the same year at the State Sports Centre, again in Sydney where once more, Shingaki was beaten, this time in 3 rounds.
Fenech connected with a hard right 30 seconds into the first which had blood coming from Shingaki"s nose. In the 2nd Fenech again connected and opened up a bad cut above his opponents right eye.
In true Japanese tradition Shingaki never gave up but the fight was stopped after 3 rounds after he was ruled unfit to continue. Shingaki, despite his injury was keen to continue, even shaping up showing he was willing to go on, but the doctor and referee wouldn"t budge and the fight was over.