All-in professional wrestling

All-in wrestling was the first wave of professional wrestling in the United Kingdom to be based on the Catch As Catch Can style of wrestling. It was conducted under the All-In Rules of 1930 in which (unlike Olympic freestyle wrestling) no holds were prohibited.

The name All In later became synonymous with more anarchic professional wrestling shows, leading to censure by local authorities by the late 1930s. Consequently, the All In label was disowned by most British wrestling promoters following the adoption of the 1947 Mountevans rules

Professional wrestling in the Greco Roman style had enjoyed considerable popularity in Britain during the Edwardian era, but had dwindled and died out by the outbreak of World War I. While various styles of amateur wrestling continued as legitimate sports, grappling as a promotional business did not return to Britain until the beginning of the 1930s when the success of the more worked aspects of professional wrestling in America, like gimmickry and showmanship, were introduced to British wrestling.

It was with this revival that the more submission-based Catch As Catch Can wrestling style, which had already replaced Greco Roman wrestling as the dominant style of professional wrestling in the United States back in the 1890s, became the new dominant style in Britain. With Lancashire catch-as-catch-can already a major amateur sport particularly in Northern England, there existed a ready-made source of potential recruits to professional wrestling.

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