Women threw down just as much as the men did back in the day:
"Although boxing matches were frequently advertised as 'trials of manhood', women as well as men could often be found fighting at the booths and bear-garden. In August 1723, The London Journal noted that 'scarce a week passes but we have a Boxing-Match at the Bear-Garden between women'. It would not have been unusual, while browsing the newspaper, to come upon a challenge and reply such as this:
I, Elizabeth Wilkinson of Clerkenwell, having had some words with Hannah Hyfield, and requiring satisfaction, do invite her to meet me upon the stage, and box me for three guineas, each woman holding half a crown in each hand, and the first woman that drops the money to lose the battle.
I, Hannah Hyfield, of Newgate-market, hearing of the resoluteness of Elizabeth Wilkinson, will not fail, God willing, to give her more blows than words - desiring home blows, and from her no favour; she may expect a good thumping!"
From Boxing - A Cultural History by Kasia Boddy