Amanda Serrano

Professional boxing career Early career On June 11, 2011, Serrano defeated Jennifer Scott to capture the vacant WBC–NABF featherweight title. The bout was scheduled for 8 rounds, but the match was cut quick as Serrano knocked out Scott in 1:04 of round one.

Super featherweight

Serrano was in line to face Fatuma Zarika for the vacant WBC super featherweight title, however, Zarika returned to her native Kenya due to an emergency, and was unable to return due to visa problems. On September 10, 2011, Serrano defeated WIBF Inter-Continental lightweight champion Kimberly Connor via second-round technical-knockout (TKO), for the vacant IBF super featherweight title.

Serrano vs. Wallberg Her next fight took place on April 27, 2012, at the Cloetta Center, in Linköping, Sweden against undefeated WBC champion Frida Wallberg. The World Boxing Council—against mandatory rules—allowed the bout to be contested with 10 ounce gloves instead of the mandatory eight ounce for that division.

Serrano came up short losing a controversial unanimous decision to Wallberg. All three judges' scorecards were in favour of Wallberg with Gudjon Vilhelm scoring it 93–98, Venciclav Nikolov scoring it 93–97, and Franco Ciminale scoring it 94–96.

Quest for multi-division supremacy Her sixth-round knockout (KO) win over Maria Maderna for the WBO lightweight title was held at the Argentine Boxing Federation Stadium. Maderna was going for her fourth title defense, but Serrano dominated the fight with her speed and power.

She next faced the former WBC super featherweight champion Olivia Gerula at the BB King Blues Club & Grill in New York City, New York. Serrano stated in a pre-fight interview that she wanted the winner of Matthysse vs. Mrdjenovich, as she expressed her desire to unify all four featherweight title. Serrano defeated Olivia Gerula via technical-knockout (TKO) in the first round to capture the vacant WBO featherweight title. Serrano then successfully defended her featherweight title by TKO against Calixta Silgado in Brooklyn.

On October 18, 2016, Serrano defeated Alexandra Lazar in the fifth round to capture the vacant WBO junior featherweight title. Already a three division champion, she moved back down to the junior featherweight limit to tie Miguel Cotto's record and become only the second Puerto Rican boxer, male or female, to win world titles in four weight classes.

Serrano vs. Santana I In 2017, fighting on the Shawn Porter vs. Andre Berto undercard, Serrano dominated Dahianna Santana en route to an eighth-round KO victory to win the vacant WBO bantamweight belt, which made her the first female fighter in boxing history to win world titles in five weight divisions.

Serrano vs. Reynoso On September 8, 2018, the Brooklyn-based hitter moved up an unprecedented five weight classes to defeat Yamilia Esther Reynoso via tenth round unanimous decision (UD), and captured the WBO light welterweight.

Serrano vs. Voraberger On January 18, 2019, Serrano defeated Eva Voraberger in the first round to capture the vacant WBO super flyweight title. In doing so she became only the second male or female to capture a major title in seven weight classes after Manny Pacquiao.

Featherweight Serrano vs. Hardy I On September 13, 2019, Serrano defeated undefeated Heather Hardy (22–0), to capture the interim WBC and WBO featherweight title. The Brooklyn native dominated the 10 round bout with a score of 98–91, 98–91 98–92.

On February 4, 2021, Serrano was promoted to full WBC featherweight champion. The move came following a breakdown in talks regarding a targeted showdown with Edmonton's Jelena Mrdjenovich.

Serrano vs. Bermudez On March 25, 2021, Serrano KO'd Daniela Bermudez with a body punch in round nine at Plaza del Quinto Centenario, San Juan, Puerto Rico. Serrano retained her WBC and WBO featherweight titles. Heading into the bout, Serrano and Bermudez were ranked inside The Ring 's P4P top 10.

Lightweight Serrano vs. Taylor

The first women's boxing match to headline Madison Square Garden, described as the 'biggest women's fight of all time', was held on April 30, 2022, between Katie Taylor and Serrano, with Taylor's undisputed lightweight titles on the line. Taylor defeated Serrano by split decision in what was named Fight of the Year by Sports Illustrated.

On February 5, 2023, it was announced that the rematch between Taylor and Serrano would take place on May 20 in Dublin, Ireland, for the undisputed lightweight championship of the world. However, on February 28, Serrano withdrew due to an injury she had sustained during training camp and Taylor fought undisputed light-welterweight champion Chantelle Cameron instead.

Return to featherweight Serrano vs. Mahfoud Upon returning to the featherweight division, Serrano was set to fight undefeated IBF champion Sarah Mahfoud in a title unification bout. Serrano resumed normal service on Saturday, responding to her second professional defeat earlier this year by picking up another world title with a unanimous-decision win. In a mostly one-sided affair, Serrano earned convincing scores of 99–92, 97–93, 97–93 to unify the world featherweight titles at the AO Arena.

Serrano vs. Cruz Serrano faced WBA champion Erika Cruz on February 4 at Hulu Theatre in Manhattan, in an undisputed showdown for all four major world titles in the featherweight division. On fight night, Serrano defeated Cruz via unanimous decision with the scores of 98–92, 98–92, 97–93. With the win she also became the first undisputed champion, male or female, of the four-belt era from Puerto Rico.

Serrano vs. Hardy II In the first defense of her undisputed featherweight titles, Serrano rematched Heather Hardy in the co-main event of the Jake Paul vs. Nate Diaz card on August 5, 2023. She won the fight by unanimous decision.

Serrano vs. Ramos On October 27, 2023, Serrano defeated Danila Ramos via unanimous decision and retained her WBO, WBA and IBF world featherweight titles. It was the first women's world title fight held over twelve, three-minute rounds since 2007. The bout did not include the WBC belt as Mauricio Sulaiman, the WBC president, did not sanction the fight. He has cited studies and safety issues and the week prior to the fight told the BBC he was "praying that there will be no mishap or injury due to this deeply misguided and mistaken initiative."

On December 5, 2023, Serrano vacated the WBC title due to their refusal to sanction future female boxing matches at her desired twelve, three-minute rounds.

Cancelled Nina Meinke fight On December 21, 2023, it was announced that Serrano would be defending her WBA, WBO and IBF featherweight titles in twelve-round bout against Nina Meinke at El Coliseo de Puerto Rico in San Juan, Puerto Rico. However, the fight was cancelled at the last minute, after Serrano was declared "medically unfit" by the Puerto Rican Boxing Commission due to an eye injury.

Super Lightweight Serrano vs. Morgan Serrano faced Stevie Morgan at the Amalie Arena in Tampa, FL on the Jake Paul vs. Mike Perry event on July 20, 2024. Serrano defeated Stevie Morgan by technical knockout in the second round.

Serrano vs. Taylor II Serrano was originally scheduled to challenge Katie Taylor for her undisputed super lightweight title in a rescheduled rematch on July 20, 2024 at AT&T Stadium in Arlington, Texas on the Jake Paul vs. Mike Tyson card; the Serrano-Taylor fight was the co-main event on the card. However, after Mike Tyson suffered an ulcer flare-up, the event was postponed and took place at the same arena on November 15, 2024. Taylor was awarded the unanimous decision victory. According to Netflix, 50 million households throughout the world watched the Serrano-Taylor fight. Viewers said that Netflix repeatedly crashed during the fight.

Serrano vs. Taylor III Serrano lost against Katie Taylor by majority decision on July 11, 2025 for the undisputed super lightweight title in a trilogy fight at Madison Square Garden in New York, headlining the first all-women's boxing card at the Garden, live on Netflix. In March 2025, prior to this fight, which was promoted by Jake Paul's promotion Most Valuable Promotions, she signed a lifetime contract with MVP. Besides competing for the promotion, Serrano will later serve as a chairwoman for the company and look after the promotion's women's boxing initiatives. She lost the fight against Taylor via majority decision - meaning that 3 of her 4 career losses had been inflicted by Taylor

Serrano vs. Tellez Serrano was scheduled to defend her unified WBO and WBA featherweight titles in a rematch against Erika Cruz at Coliseo Roberto Clemente in San Juan, Puerto Rico, on January 3, 2026. On December 18, 2025, it was announced that the Cruz rematch was canceled due to "an atypical finding in Erika Cruz's Voluntary Anti-Doping Association (VADA) testing conducted prior to the event." Cruz was replaced by Reina Tellez. Serrano defeated Tellez, who failed to make the required weight limit, via unanimous decision in a fight contested over 10 three-minute rounds.

Serrano vs. Harrison Serrano made her next defense against Cheyenne Hanson at County Coliseum in El Paso, Texas, U.S, on 30 May 2026, winning by technical knockout in the second round to register the 32nd stoppage victory of her career which equalled the record for most knockouts in women's boxing history set by Christy Martin in 2005.

Serrano vs. Manzur Serrano faced Lucrecia Anabella Manzur at Pechanga Resort Casino in Temecula, California, on August 21, 2026, in the first world championship fight to be streamed live on TikTok. Contested over 12, two minute rounds, she won the bout via majority decision with two of the ringside judges both scoring it 116–112 in her favour, while the third had it a 114–114 draw. It was Serrano's 50th professional victory.

Mixed martial arts career Training Since early 2015, Serrano quietly worked towards debuting in mixed martial arts (MMA), beginning by incorporating kicks to her training. The idea emerged after she participated in the filming of Fight Valley along her sister, meeting Miesha Tate, Holly Holm, and Cristiane Justino and learned of the lifestyle that they could afford. This triggered the interest of people involved in MMA and she was approached and told about the economic potential of the move. By the summer of 2016, Serrano admitted that she had seriously considered retiring to take up MMA due to frustration with the state of the business, but that being able to appear in ShoBox changed that. Instead, she began working towards becoming the first person to hold both boxing and MMA titles at once, setting her debut for late 2017. Towards this goal, she continued training in kickboxing under former world champion Luis Ruiz and incorporated Brazilian jiujitsu working with brown belt Gabriel Marte at the Dojo NYC.

Public challenge to Ronda Rousey On July 31, 2015, Ronda Rousey's trainer, Edmond Tarverdyan, expressed the belief that his fighter "can win the boxing world title" while discussing a potential fight with Justino. After noting that "Ronda spars with boxing world champions that punch way harder than Cyborg", Tarverdyan claimed that she "has never lost a round in the gym. With boxing world champions".

She went on to criticize Rousey's stand-up fighting technique and challenging her to a boxing match, stating that "[from a] boxing point of view, she looked like a rookie amateur fighter, throwing very wide punches with no coordination. I heard that Cyborg is not willing to come down to the lightweight division to fight Ronda, but I can go up to 135, and we can settle a boxing match so I can prove her trainer wrong. I once went up to the lightweight division, and traveled to Argentina for a world title fight. At the end, the results was that I became the first ever Puerto Rican female boxer to captured a world title in two weight classes". Her debut was scheduled for April 13, 2018, when she drew with Corina Herrera after winning the first two rounds but losing the third when forced to the floor. Afterwards, Serrano focused on grappling. This training was put to the test on August 18, 2018, when she won gold in her first career jiu jitsu tournament, a Grappling Industries event held at New York where she gathered four submissions. After winning a sixth world championship in boxing, it was announced that MMA would be Serrano's focus in the foreseeable future due to better salaries.

On October 13, 2018, Serrano won her second fight by submitting Eréndina Ordóñez with a standing rear naked choke in the first round. In February 2019, she participated in her second jiu jitsu competition, defeating Erin Finkeldey in her only bout. Serrano was scheduled to headline her third MMA event (tentatively another fight with Dahiana Santana, making her debut), this one in Puerto Rico, on January 25, 2020. However, the card was postponed due to a series of earthquakes and ultimately cancelled. Serrano considered the "last minute" cancellation frustrating after missing the holidays due to her training. Afterwards, Combate Americas entered into a hiatus caused by the COVID-19 pandemic, remaining inactive until 2021. During this timeframe, Serrano's contract came to an end and she continued boxing. On June 11, 2021, Serrano defeated Mexican Valentina García by submission (standing guillotine) in a minute.

Professional Fighters League On August 2, 2023, it was announced that Serrano had signed with the Professional Fighters League (PFL).

Professional wrestling career At the same time that she made her involvement in MMA public, an interest in potentially joining WWE, noted in 2019, Serrano revealed that she had been training under Jonathan Figueroa (known by his ring name Amazing Red) to become a professional wrestler and that she would be performing for a promotion soon.

Professional boxing record

Mixed martial arts record Win

Valentina García Submission (guillotine choke) iKON Fighting Federation 7

Los Mochis, Sinaloa, Mexico Win

Erendira Ordóñez Submission (rear-naked choke) Combate 26: Mexico vs. USA

Tucson, Arizona, United States Draw

Corina Herrera Draw (unanimous) Combate 20: Combate Estrellas 1

Los Angeles, California, United States Submission grappling record

Result Record Opponent Method Event Division Type Date Round Time Location