Claressa Shields vs Christina Hammer: The biggest fight of women’s boxing

Claressa Shields celebrates after defeating Christina Hammer.

On Sunday, two-time Olympic gold medallist Claressa Shields defeated unbeaten German Christina Hammer to unify the IBF, WBA, WBC and WBO middleweight titles. The contest was not just the most significant women's fight in a generation but also the biggest test of the American's professional career.


Boxing has seen more accomplished female names - Laila Ali, daughter of Muhammad, retired undefeated in 2007. Christy Martin was made a star by Don King, who featured the American on Mike Tyson’s undercards. Lucia Rijker, arguably the greatest female fighter, excelled in both boxing and kickboxing. But 24-year-old Claressa Shields’s competitors will never be her predecessors but Ronda Rousey, who elevated women’s mixed martial arts from a oft-derided slideshow to mainstream attraction.

Shields, who had three world titles before Sunday morning, spoke of the chance to fight for a million dollars one day. (For comparison sake, Mexican star Canelo Alvarez signed a five-year contract worth $365mn last year.) The fight against undefeated German Christina Hammer (24-1, 11 KOs), a Showtime main-event and supported on various digital platforms, thus had more on the line than just championships.

Claressa Shields celebrates after defeating Christina Hammer.


Shields won the middleweight gold in women’s boxing first Olympic showing in London 2012, mulled turning professional, before doubled her haul in Rio 2016, to go with her two World Championship golds. She collected three world titles in the next three years. Hammer, a German emigree from Kazakhstan and a world champion for nearly a decade, came into the fight the taller, longer and more experienced boxer. The 28-year-old German, who has been competing professionally since even before Shields even went to her first Olympics, took the fight because of the exposure.


After a cagey first round in which she assessed her opponent’s jab, Shields turned the fight into a rout with her effective aggression and sharp hands. She slipped, dodged and punished Hammer with stinging jabs and looping right hands. In all, the American landed 112 of 387 punches (29%), compared to 49 of 366 for the German (13%). The contest came close to being stopped in the eighth, when Shields knocked Hammer's mouthpiece loose and rained a dozen unanswered shots to the head.


Shields now has natural match-ups in Cecilia Br khus and Savannah Marshall. The former, Norwegian welterweight queen, is the only other woman boxer to hold all four major title belts in any pision; the latter, an unbeaten British super middleweight, is the 1 in Shields’ 77-1 amateur record.

Eddie Hearn, who promotes Katie Taylor (the 2012 Olympic gold medallist and two-pision lightweight champion is another trailblazer), however argued that Shields vs. Hammer was not as big as it should have been due to the absence of a "major promoter". "I think it's just exposure. Just like with Katie Taylor, you start off in a losing battle where 50% of the people say 'I like women's boxing.' Another 25% go 'hmm, it's not for me.' And another 25% go ‘women, what are they doing even boxing’ - with the old school, sexist mentality," Hearn told

There's truth to Hearn's assessment, and Shields might still be quite a ways from a million-dollar payday, Sunday’s fight was a major step in the right direction.