LAS VEGAS – Mikaela Mayer became a unified 130-pound women’s world champion Friday night.

Maiva Hamadouche had every reason, however, to believe she had done enough to make their 10-round title unification fight extremely competitive. France’s Hamadouche made Mayer work virtually every second of every two-minute round in an action-packed dogfight that headlined a six-fight card at Virgin Hotels Las Vegas.

Judges Lisa Giampa (100-90), Max De Luca (99-91) and Tim Cheatham (98-92) saw an entirely different fight, though, and Mayer won a unanimous decision in what will go down as one of the most entertaining women’s title fights in boxing history.

Mayer, a 2016 U.S. Olympian from Colorado Springs, Colorado, remained undefeated (16-0, 5 KOs), defended her WBO junior lightweight title and won the IBF 130-pound championship from France’s Hamadouche (22-2, 18 KOs). Before Friday night, Hamadouche had won 13 straight fights since former lightweight champ Delfine Persoon defeated her by unanimous decision in November 2015.

“[I showed] I could bang it out on the inside,” Mayer told ESPN’s Mark Kriegel after the fight. “That wasn’t really the entire game plan. The game plan was to use my jab. But in the back of my head, I knew he was gonna keep it close, keep me on the inside. Even though we trained for that, just being able to do that for 10 straight rounds taught me a lot.”

According to CompuBox’s unofficial punch stats, Mayer landed six more punches overall (239-of-594 to 233-of-872). CompuBox counted just 10 more power punches for Mayer (221-of-470 to 211-of-728) and four more jabs for Hamadouche (22-of-144 to 18-of-124).

Without the benefit of knowing the scores and the outcome seemingly in doubt, Mayer and Hamadouche fought accordingly throughout those final two minutes. They took turns landing head and body shots right up until the final bell.

Mayer tried to keep her distance at times in the ninth round, but Hamadouche was relentless. She pressured Mayer throughout that round and drilled her with left hook that landed with just under 15 seconds to go in that round.

A left-right combination by Mayer stopped Hamadouche in her tracks with just over 30 seconds to go in the eighth round. Both boxers landed numerous head and body shots during that round, though.

Mayer and Hamadouche continued battering each other with short shots on the inside throughout an action-packed seventh round. Mayer rallied toward the end of the round, when she landed several unanswered power punches.

Hamadouche and Mayer exchanged hard shots as soon as the bell sounded to start the sixth round. Mayer nailed Hamadouche with a left hook and then a right hand with just under a minute on the clock in the sixth round.

Mayer landed two right hands and got out of Hamadouche’s punching range both times with just over a minute to go in the fifth round. Less than 20 seconds later, Mayer drilled Hamadouche with a right uppercut.

Hamadouche landed a variety of rights and lefts that backed up Mayer at the start of the fourth round. Mayer drilled Hamadouche with a left hook with 45 seconds to go in the fourth round, but she had difficulty keeping the ever-aggressive Hamadouche off her.

About 50 seconds into the third round, Mayer nailed Hamadouche with a right to the side of her head. They traded left hooks with about 45 seconds remaining in the third round.

Hamadouche remained very aggressive throughout the third round.

After a fast-paced first round, Mayer attacked Hamadouche at the beginning of the second round. Both boxers threw a lot of punches in that second round, when Hamadouche landed a right uppercut with 30 seconds to go.

Hamadouche attacked Mayer as soon as their fight started, which initiated an entertaining exchange within the first 20 seconds of the opening round. They traded again toward the end of the first round.

Keith Idec is a senior writer/columnist for BoxingScene.com. He can be reached on Twitter @Idecboxing.