|Height||5 ft 7 in (1.70 m)|
|Born||November 12, 1864
|Died||July 9, 1890(aged 25)|
|Wins by KO||18|
Duffy won his first professional fight by knockout over Skin Doherty in 1884 at the age of 19. His last fight happened in 1889 against Australian champion Tom Meadows, who he defeated by disqualification. Just over a year later, he died of tuberculosis at the age of 25 while he was still recognized as champion, ending his career with a 33-3-21 win-loss-draw record with 18 knockout victories. He was inducted into the International Boxing Hall of Fame in 2008.
- Lineal championship
- List of lineal boxing world champions
- List of welterweight boxing champions
- List of select Jewish boxers
- "Paddy Duffy". International Boxing Hall of Fame. Retrieved October 14, 2016.
|Inaugural Champion||World Welterweight Champion
October 30, 1888 – July 1890
Died from tuberculosis
Title next held by"Mysterious" Billy Smith
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