On September 2, 1968, an 18-year-old Masao Ohba (16-1-1, 9 KOs) and Susumu Hanagata met in the ring.
Ohba came in to the fight on a 7-fight win streak with a 50% KO rate, and was fighting after a gap of 28 days.
Masao Ohba lost to Susumu Hanagata via unanimous decision in the 10-round fight, and adds a loss to his record at 16-2-1.
On June 16, 1967, a 17-year-old Masao Ohba (6-0, 4 KOs) and Masakazu Tani met in the ring.
Ohba came in to the fight on a 6-fight win streak with a 66% KO rate, and was fighting after a gap of 1 month and 17 days.
Masao Ohba lost to Masakazu Tani via unanimous decision in the 4-round fight, and adds a loss to his record at 6-1.