5 most dominant UFC championship reigns in the women's divisions

#4. Joanna Jędrzejczyk – former UFC strawweight champion

Joanna Jędrzejczyk quickly emerged as a fan favorite upon joining the UFC. She embraces the role of the antagonist in the lead-up to her fights and clearly understands how to promote a matchup.

After compiling stellar runs in both kickboxing and Muay Thai, Jędrzejczyk transitioned to MMA in 2012 and kicked off her professional career with a scintillating 6-0 start in her native country, Poland.

Upon signing with the world's premier MMA promotion in 2014, Jędrzejczyk ripped through her fellow strawweights for the next three years, winning the strawweight title and defending it five times.

Watch highlights from Joanna Jędrzejczyk's championship reign below:

Going into UFC 217 in 2017, Jędrzejczyk's professional record stood at 14-0 and many expected her to remain the champion for a long time to come. Looking to defend her strawweight title for the sixth time, the Polish phenom took on TUF alum Rose Namajunas at the iconic Madison Square Garden arena in New York City.

'Thug' Rose famously shocked the world that night, knocking out Jędrzejczyk in the very first round of their championship bout.

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#3. Ronda Rousey – former UFC bantamweight champion

If not for Ronda Rousey, who knows where women's MMA would be today? The charismatic Olympian singlehandedly convinced Dana White to allow women into the UFC back in 2012 and the rest, as they say, is history.

After winning a bronze medal at the 2008 Olympic Games, the judoka transitioned to MMA and made a name for herself in Strikeforce. In her first six MMA bouts, Rousey came away with first-round submission victories to establish herself as the most promising female fighter in the world.

As she held Strikeforce's 135-pound title when the promotion was absorbed by the UFC, Rousey was handed the UFC's bantamweight belt despite never having competed in the famed octagon. 'Rowdy' finished her opponents in her next six title defenses, which saw her star power reach astronomical heights.

Watch a compilation of Ronda Rousey's best finishes below:

Ronda Rousey's success on the world's biggest stage saw her emerge as one of the biggest stars in the sport. She was featured on numerous notable magazine covers, appeared on big-time talk shows, featured in Hollywood movies and was even on the cover of the official UFC video game alongside fellow superstar Conor McGregor.

Shockingly, her championship reign came to a screeching halt when she was thoroughly outclassed by Holly Holm, who knocked her out in devastating fashion back in 2015.