1952-11-15 Yoshio Shirai w pts 15 Dado Marino, Korakuen Stadium, Tokyo, Japan - WORLD
1952-11-15 Yoshio Shirai w pts 15 Dado Marino, Korakuen Stadium, Tokyo, Japan - WORLD. Referee: Isamu Itu. Scorecards: 146-128, 149-132, 149-132. Battered non-stop throughout, Marino (112) was on the verge of being knocked out on several occasions, but somehow managed to rally and come through. Shirai (111), who won the unanimous decision, used his reach expertly to dominate the champion in front of 25,000 fans.
Following the contest, Marino, a grandfather, announced his retirement from the ring.