Andy Ruiz Jr.

As of May 2020, he is ranked as the world's fourth best active heavyweight by the Transnational Boxing Rankings Board and sixth by The Ring magazine and BoxRec.

On January 11, 2019, it was reported that Ruiz had signed a deal with powerful advisor Al Haymon, and would now be part of the Premier Boxing Champions (PBC) stable, with his fights being aired on Showtime and FOX. It was said that Ruiz had bought out the remainder of his Top Rank promotional contract. On March 7, Ruiz's PBC debut was announced to take place on the Danny García vs. Adrián Granados undercard on April 20 at the Dignity Health Sports Park in Carson, California against 36 year old German boxer Alexander Dimitrenko (41-4, 26 KOs) in a ten round bout. The fight was televised on FOX and FOX Deportes. For the fight, Ruiz weighed 262 pounds and Dimitrenko came it at 259 pounds. Ruiz was guaranteed a $200,000 purse, whilst Dimitrenko was guaranteed $75,000. Using his quick hands and combinations, Ruiz was able to overcome Dimitrenko via TKO in round five. The bout nearly came to an end in round four when Ruiz nearly knocked Dimitrenko down, however Dimitrenko managed to make it to the end of the round. Ruiz landed 68 punches overall, compared to Dimitrenko, who landed 21 punches. For his next fight, Ruiz wanted to fight Adam Kownacki.

Prior to the Dimitrenko fight, Ruiz put his name forward to replace Jarrell Miller and challenge Anthony Joshua (22-0, 21 KOs) for the unified WBA (Super), IBF, WBO, and IBO heavyweight titles on June 1, 2019, after Miller was denied a license by the New York Athletic Commission because he failed three different tests for PEDs. On April 22, Ruiz confirmed his team had a meeting scheduled with promoter Eddie Hearn, officially putting himself in the running. Ruiz became a frontrunner after it was reported Luis Ortiz's team had rejected two offers of career-high purses to fight Joshua. Terms were agreed within a week. On May 1, with one month to go before fight night, Joshua vs. Ruiz was confirmed and announced to take place at Madison Square Garden in New York City, broadcast exclusively on DAZN in the United States and on PPV Sky Sports Box Office in the United Kingdom.

In September 2019 it was announced that Ruiz would defend his titles against Joshua in a rematch. Ruiz lost via unanimous decision, with the three judges scoring the bout 118–110, 118–110, and 119–109.

On December 19, 2017 Angel "Memo" Heredia, a well known strength and conditioning trainer, confirmed that he would be working alongside Ruiz. Ruiz was next to make a ring return on February 3, 2018 on the undercard of Gilberto Ramirez vs. Habib Ahmed WBO super middleweight title fight at the American Bank Center in Corpus Christi, Texas. Ruiz did not appear on the card and instead his return was pushed back to take place at the StubHub Center in Carson, California on the undercard of Óscar Valdez vs. Scott Quigg on March 10. In his absence from the ring, he explained, "I just wanted to take a break. I already have 30 fights. I wanted to be with the family, I started investing my money. I started building houses. But every boxers needs that little break and now I've got to come back harder." American boxer Devin Vargas (20-4, 8 KOs) was confirmed as his opponent in a scheduled eight round bout. Ruiz knocked Vargas out in round one. He landed a big right hand to the head of Vargas, dropping him. Referee Thomas Taylor called off the fight. The official time of the stoppage was at 1:38 of round one. Ruiz showed good power and speed during the short fight. For the bout, Ruiz trained with Manny Robles. Ruiz received a $500,000 purse.

Ruiz was ordered to fight Joseph Parker in New Zealand for the WBO heavyweight title with the fight set to take place on December 10, 2016. This fight came about by Ruiz being one of the top two ranked contenders willing to fight for the vacant title. The title became vacant when former champion Tyson Fury vacated the title.

On December 20, 2014 Ruiz fought former WBO heavyweight champion, 38 year old Siarhei Liakhovich (26-6, 16 KOs) at the Celebrity Theater in Phoenix, Arizona. Ruiz was taken to the ten round distance for the first time in his career by Liakhovich, who trained hard for this fight and tried to win. The scorecards read 98–92, 96–94, and 99–91, all in favour of Ruiz who retained his titles. This was the last time Liakhovich fought. Ruiz revealed he fractured his right hand during the second round. In June 2015, Ruiz began training with well-known trainer Abel Sanchez, whose most notable boxer was Gennady Golovkin.

During his amateur career, Ruiz boxed to a 105–5 record under Cuban trainer Fernando Ferrer. His 105 wins include two Mexican National Junior Olympics gold medals and a title at the Ringside World Championships. Ruiz also represented Mexico in two 2008 Beijing Olympic Games qualification tournaments, losing to eventual Olympians Robert Alfonso of Cuba and Oscar Rivas of Colombia in the first and second qualifiers. Ruiz's parents were born in Mexico, making Ruiz eligible to represent Mexico.

On July 27, 2013 Ruiz traveled to Macau with Top Rank to fight at the Cotai Arena against undefeated 30 year old American Joe Hanks (21-0, 14 KOs) in a scheduled ten round fight. Ruiz dropped Hanks twice in round four with fast right hands, forcing the stoppage. Ruiz claimed the vacant WBO Inter-Continental heavyweight title with this win. On November 24, Ruiz fought again the Cotai Arena, this time on the Pacquiao-Rios undercard, successfully defending his WBO Inter-Continental heavyweight title and claiming the vacant WBC-NABF heavyweight title defeating Tor Hamer (21-2, 14 KOs). The fight was stopped after the third-round when Hamer indicated he did not wish to continue. Over the three rounds, Ruiz landed 74 of 213 punches landed (35%) and Hamer landed 49 of his 131 thrown (37%) before he quit on his stool. This was the second time Hamer had retired on his stool following his previous loss to Vyacheslav Glazkov in December 2012. His promoter Lou DiBella announced Hamer had been released from his contract.

Ruiz failed to become the first heavyweight of Mexican ancestry to win a world title when Parker won the bout by a majority decision. The judges scored the fight 114–114, 115–113, and 115–113. Ruiz started off well being the aggressor but slowed down during mid rounds, only to take control again during the championship rounds. Both men showed great respect for each other throughout the contest, and Ruiz spoke of his unhappiness. "I think I got the win or at least a draw, I think I set the pace with my jab." Ruiz also stated he would like to have a rematch in the future. CompuBox stats showed that Parker landed 119 of 560 punches thrown (21%) and Ruiz landed 107 of his 416 thrown (26%). On a delayed HBO broadcast, the fight peaked at 585,000 viewers, with an average of 521,000 viewers.

On June 1, Ruiz defeated Joshua by technical knockout in the seventh-round, capturing the unified WBA (Super), IBF, WBO, and IBO titles. At the time of stoppage, Ruiz was leading the fight 57–56 on two scorecards and Joshua was leading 57–56 on the other. It is considered to be one of the biggest upsets in the history of boxing.

On March 23, 2012, Ruiz fought his first eight-round fight, outpointing Homero Fonseca. All three judges scored the fight 80–72. In July, Ruiz fought Jonte Willis (8–3–1, 3 KOs) at the Home Depot Center, Carson, California. Willis entered with a record of 1–3–1 in his previous five fights, including a split decision loss three months prior to Denis Bakhtov (33–7). Ruiz floored Willis in round five from a short right hand before referee Wayne Hedgpeth stopped the bout in round eight, after a combination of unanswered punches. This was on the undercard of Donaire vs. Mathebula.

A 19-year-old Ruiz made his professional debut on March 28, 2009, at the Plaza de Toros in Tijuana, Baja California, Mexico, in a four-round bout against Miguel Ramirez. Ruiz won the fight via a first-round knockout (KO). Ruiz fought again after three months at the same venue, this time knocking Ross Brantley down three times in round one, winning the bout via technical knockout (TKO). Ruiz took an eight-month gap before he returned to the ring in February 2010, winning a four-round unanimous decision against Juan Luis Lopez Alcaraz. A month later, Ruiz made his American debut at the Gaylord Hotel in Texas, knocking out Luke Vaughn in round one. Ruiz had his next three fights of 2010 also in the U.S., defeating Miles Kelly via KO, Raymond Lopez via unanimous decision and Francisco Diaz via KO. On February 5, 2011, Ruiz knocked out Kelsey Arnold in the third-round and in the same month defeated Alvaro Morales via unanimous decision 59–55, 59–55, and 60–54. In April 2011, Ruiz defeated Angel Herrera via six-round unanimous decision. In July, Ruiz fought at the Texas Station Casino, Las Vegas, defeating Villi Bloomfield via fourth-round TKO. He returned to the Casino on December 7 and defeated Elijah McCall (11–1–1, 10 KOs), son of former world champion Oliver McCall, by a TKO one second before round three ended. Referee Kenny Bayless waves off the fight after McCall stopped defending himself. Ruiz's hand speed was showcased in this fight.

Ruiz resides in his hometown of Imperial, California; he graduated from Imperial High School in 2007 and is married with five children. Ruiz considers himself both American and Mexican and identifies with both nationalities: "America’s one of the greatest countries in the world. For me, I’m an American and I’m a Mexican. I live here. And it hurts me the way a lot of people talk about Mexicans when I know we’re all about hard work and dedication." He is fluent in both English and Spanish.

Ruiz had Freddie Roach in his corner and at the Wild Card Gym and sparred with former UFC heavyweight champion, Andrei Arlovski. Ruiz mostly fought journeymen opposition earlier in his career but did knock out two amateur stars in 2006 US amateur champion Jonte Willis and 2008 Golden Gloves champion Tor Hamer.

Andrés Ponce "Andy" Ruiz Jr. (born September 11, 1989) is an American professional boxer of Mexican descent. He is a former unified heavyweight champion, having defeated Anthony Joshua to win the WBA (Super), IBF, WBO, and IBO titles in 2019, only to lose them in a rematch with Joshua six months later. Ruiz became the first male boxer of Mexican heritage to become a world heavyweight champion.

After a 9-month gap, Ruiz returned to the ring on September 2015 at the Tachi Palace Hotel & Casino in Lemoore, California defeating Joell Godfrey via unanimous decision over eight rounds, all three judges scored it 80–72. Godfrey was a late replacement for Devin Vargas, who was unable to obtain a license from the California Athletic Commission. A month later, Ruiz fought veteran Raphael Zumbano Love (37-11-1, 30 KOs). Ruiz won on points after eight rounds.

His next fight was scheduled to take place on July 7, 2018 at the Save Mart Center in Fresno, California against veteran journeyman Kevin Johnson (32-9-1, 16 KOs). The main goal for this bout was for Ruiz to get in some much needed rounds, having only completed less than a round in over a year. Johnson, who had previously only been stopped twice in his nine losses, was known for his toughness, having taken the likes of Kubrat Pulev, Dereck Chisora, Tyson Fury and Vitali Klitschko, the twelve round distance. Ruiz dominated Johnson over ten rounds, winning via unanimous decision with scores of 99–91, 97–93, and 97–93. Johnson did not do much apart from throw a strong jab from time to time. It was Ruiz who was busy and remained in control for majority of the bout. Ruiz admitted it was good to go the distance and called out some of the better heavyweights, namely Jarrell Miller.

On May 14, 2016 Ruiz fought 45 year old, former world title challenger Ray Austin (29-6-4, 18 KOs) at the Sportsman's Lodge in California. Austin weighed 18 pounds more than Ruiz at the weigh-in. This was the first time in 14 professional fights that Ruiz was outweighed by his opponent. This was Ruiz's fourth successful defence of his WBC-NABF heavyweight title as Austin was down in round one, he injured his right hand and failed to come out of his corner for round five. After this bout, Ruiz increased his record to 27 wins in as many fights.

Ruiz next fought on September 10, 2016 returning to the Tachi Palace Hotel & Casino in California to headline "Solo Boxeo Tecate” (UniMas) against 40 year old Franklin Lawrence (21-2-2, 16 KOs) for the WBC-NABF heavyweight title. Lawrence has won his last nine fights inside the distance dating back to 2009, with his last loss being against veteran Oliver McCall. His only other loss came in his fifth professional fight against future WBC world champion Bermane Stiverne, which was stopped after Lawrence injured his arm in round one. Ruiz made a successful fifth defence of his WBC-NABF title after ten one-sided rounds. The judges scored the fight 100–90, 99–91, and 99–91. The win also set up a future WBO eliminator with bout with Hughie Fury.