Boxing in the 1920s formed. It was the predecessor of what is known now as the WBA. Tex Rickard was the leading promoter of the day, and he has been compared to P.T. Barnum and Don King. Boxing in the 1920s Boxing in the 1920s was an exceptionally popular international sport. Many fights during this era, some 20 years away or so from the television era, were social events with many thousands in attendance, both men and women. World Heavyweight champion Jack Dempsey dominated the sport through much of the decade. He won the title in 1919, keeping it until 1926. He lost the
Heavyweight boxing championship records and statistics of 23, 2019. These lists do not include "The Ring" and lineal championship fights after 1921, although they only include title streaks during which the champion captured "The Ring" or lineal title. Keys: As of 23, 2019. As of 23, 2019. Keys: "As of 24 September 2018". This list includes only major titles, and it does not include lineal championships after 1921. Below is a list of longest reigning heavyweight champions in boxing measured by the individual's longest reign. The list includes both "The Ring" and lineal championships. Career total time as champion (for multiple time champions) does not apply.