Following in the footsteps of his older brother Joe, who was a world welterweight champion, Vince changed his name to Dundee and became a professional boxer.

[1] Dundee first lost to reigning world welterweight champion, the incomparable Jackie Fields on October 2, 1929, in a ten-round points decision before a crowd of 7,000 in Chicago.

In a somewhat close and furiously fought contest, Fields employed the cleaner punching and scored a knockdown with a right cross in the sixth to gain the decision of the judges.

[7][8] Two weeks later, Dundee drew with British welterweight champion Jack Hood in ten rounds in White City, England.

[9] Dundee defeated future NBA world middleweight champion Solly Krieger on October 16, 1931, in an eighth-round technical knockout at Madison Square Garden, though there was no great degree of crowd interest in the semi-final bout.

[10] Dundee drew with Ben Jeby to on March 17, 1933, in his first attempt at the New York State Athletic Commission's (NYSAC) world middleweight title in fifteen rounds before 11,000 at Madison Square Garden.

Hughes wrote that from the third round on, Dundee connected with left jabs with enough frequency to gain the decision, though Jeby likely took the fifth and seventh.

[13] On October 30, 1933, after six years in the professional ring, Dundee defeated Lou Brouillard over 15 rounds before 9,330 in Boston to capture the New York State Athletic Commission's (NYSAC) world middleweight title.

In the early rounds, Dundee danced for position and strategically landed left jabs to Brouillard's face that piled up points and kept his opponent at a distance.

Callahan scored in the first two thirds of the bout with hard rights and harder lefts to the head and body before tiring in the ninth.

[19] Before a crowd of 8,000, Dundee mounted his second successful defense of the world middleweight title against Al Diamond on May 3, 1934, in Paterson, New Jersey, winning in a fifteen-round points decision.

[20] Dundee lost his claim to the middleweight crown when he was outpointed by Teddy Yarosz in a fifteen-round decision on September 11, 1934, before a crowd of 28,000 at Forbes Field in Pittsburgh.

[1] The bout was close but somewhat dull due to too much wrestling and clinching, though Yarosz seemed to hold the lead in all but the late rounds when he looked visibly exhausted.

[21][22] Dundee defeated Babe Risko on January 25, 1935, in a close ten round split decision at Madison Square Garden.