1941-05-09 Billy Soose w pts 15 Ken Overlin, Madison Square Garden, Manhattan, NYC, New York, USA - NY
1941-05-09 Billy Soose w pts 15 Ken Overlin, Madison Square Garden, Manhattan, NYC, New York, USA - NY. Referee: Arthur Donovan. Scorecards: 8-7, 8-7, 9-5. Right from the opening bell Soose (157¾) went after the cagey champion, but for eight rounds he was made to look like a novice when being hit by countering left jabs and held up. Once he had Overlin (159½) worked out, Soose did manage to connect with right hands but there was little sting in them. Although Soose hurt Overlin several times in the latter sessions, having him ready for the finisher, when he failed to follow up the chance was gone. According to Nat Fleischer, of The Ring magazine, Soose should have won due to him scoring more cleanly, while the judges gave it to Soose on account of his aggression.
After winning the title, Soose never defended it, mainly due to increasing weight problems, and following an eight-round technical draw against Ceferino Garcia at Gilmore Field, Los Angeles, California on 15 September, in which he weighed 169½lbs, he relinquished the title on 31 October. Soose would have just two more contests prior to retiring.
With the NYSAC now firmly behind Georgie Abrams, a three-time winner over Soose and the last man to defeat him, the authority said that they would support the winner of a Tony Zale v Abrams contest as the world champion.