WBA, WBC, WBO, and IBF World heavyweight champion Claressa Shields won Olympic Gold Medals in 2012 and 2016.
Per Boxrec, her amateur record was 63-1 with 11 stoppages, and she fought out of Flint, Michigan. She defeated in the pro ranks the person who beat her in the UK’s WBO Middleweight champion, Savannah Marshall, 12-0, in October of 2022, when she was also 12-0, adding that title to her IBF and WBC titles. She said the Heavyweight titles to her Middleweight title.
WBA and WBC Super Middleweight champion Laila “She Be Stingin” Ali, 24-0 with 21 stoppages, is the daughter of Heavyweight champion Muhammad Ali. She retired upon becoming pregnant.
One I consider the hardest hitter is WIBA Light Middleweight and Light Heavyweight champion Ann Wolfe, 24-1 with 16 stoppages from Waco, Texas. She lost her seventh fight to Valerie Mahfood, 10-3, by stoppage in 2000, then defeated her by decision in 2003 for the NABA Super Middleweight title.
Two fights later, she knocked out the Light Heavyweight champion, Vonda Ward, 18-0, in the first round.
WIBF and WIBO Light Welterweight champion Lucia “The Dutch Destroyer” Rijker, 17-0 with 14 stoppages from Amsterdam, Netherlands.
At 13, she won the Amsterdam and Netherlands fencing titles. As a pro kick boxer, she was 36-0 with 25 stoppages. Upon retiring, he would turn to acting in movies such as Million Dollar Baby, Rollerball, and Star Trek. She was inducted into the IBHOF in 2018.
I consider her one of the best, if not the best, female boxers of all time.