Óscar Rafael Valdez Fierro Jr. (born 22 December 1990) is a Mexican professional boxer. He is a former world champion in two weight classes, having held the World Boxing Organization (WBO) featherweight title from 2016 to 2019, and the World Boxing Council (WBC) super featherweight title from 2021 to 2022. As an amateur boxer, Valdez qualified for the 2008 Olympics at the age of 17 and became the first Mexican Youth World Champion. Four years later, he qualified for the 2012 Summer Olympics.

Valdez is known for his aggressive fighting style, punching power and combination punching. He holds a 72% knockout-to-win percentage.

Amateur career At age 17, Valdez upset 2007 PanAm champion Carlos Cuadras in the semifinal of the 2007 National Championships and won the bantamweight championship in his next bout.

At the Olympic qualifier, he edged out Brazilian James Pereira in the semifinal and got one of two votes even though he lost in the final to Cuba's Yankiel León, getting a silver medal and a pass to the Beijing Olympics with only 3 international bouts under his belt. In Beijing however, he ran right into the eventual gold medal winner Enkhbatyn Badar-Uugan of Mongolia and lost his first bout 4–15.

In 2008, he moved up to Featherweight and won the first 2008 Youth World Amateur Boxing Championships. The tournament was held in Guadalajara in his home country, and he showed off the experience he had gained by beating his opponents from Barbados, Uzbekistan, Kazakhstan, Ukraine and Russia. In the semi-finals, he knocked out the opponent from Ukraine in the first round. In the finals, he dominated the opposition, such as Russian Maxim Dadashev, whom he beat 12–0 in the final.

In Milan, at the 2009 World Amateur Boxing Championships (seniors), he won the bronze medal and became the first Mexican to achieve a medal at a World Champhionships in the history of the sport in Mexico.

After his run through of the Featherweight division, once again Valdez moved back down to Bantamweight. There, he won his Olympic qualifier. Valdez won his first fight in the 2012 Olympic Games, defeating India's Shiva Thapa by a margin of 14–9. In his second fight of the games, he won against Tajikistan's Anvar Yunusov by a margin of 13–7 then lost 13–19 to Ireland's John Joe Nevin.

Professional career

Super featherweight

Early career On 28 August 2012, Valdez signed a long-term contract with manager Frank Espinoza. Later that year, he signed a five-year promotional contract with Top Rank. Valdez made his professional debut at the age of 21 on 3 November. He defeated Angel Prado via 2nd round stoppage in a scheduled six-round fight. The fight took place at the Centro de Usos Multiples in Hermosillo, Sonora, Mexico. In December, Valdez knocked out Corben Page in round 2 at the Texas Station Casino in Las Vegas, Nevada. Both fights took place at featherweight.

In 2013, Valdez fought a total of six times at super featherweight, winning all the bouts inside the distance. By the end of the year, he racked up a record of 8 wins, all by stoppage and no defeats.

On 1 March 2014 Valdez fought Samuel Sanchez on the undercard of Lomachenko-Salido at the Alamodome in San Antonio, Texas. The fight was halted in round 3, as Valdez won via technical knockout. Valdez next fought in April on the Pacquiao-Bradley II undercard. He fought Adrian Perez (10–4–1, 1 KO) for the vacant NABF Junior super featherweight title in his first 8-round bout. The fight ended in round 4 when Valdez landed with a left hand to the liver, followed by a right hand, which sent Perez down on all fours. Perez made no attempt to get to his feet as the referee waved an end the bout. The three judges had Valdez ahead (30–27) at the time of stoppage. Valdez successfully defended the title in May at the Forum in Inglewood, California retiring Noel Echevarria (11–2, 6 KOs) after round 6.

Valdez returned to featherweight for the first time in nine fights on 26 July and went on to claim the vacant NABF Junior featherweight title in an 8-round unanimous decision victory against experienced journeyman Juan Ruiz (23–14, 7 KOs) at the Celebrity Theater in Phoenix, Arizona. All three judges equally scored the fight 80–71 in Valdez's favour. Ruiz was deducted 1 point for excessive holding during the fight. The fight significantly ended the successive knockout streak dating back to Valdez's fight in November 2012.

Valdez made a defence of the NABF Junior super featherweight title in the Alamadome in November against Mexican boxer Alberto Garza 26–8–1, 21 KOs). Valdez retained the title via a technical knockout in round 7. The fight marked Valdez's HBO debut. Valdez fought a further five times towards the end of 2014 through to December 2015. Notable boxers he defeated included former super bantamweight title challenger Chris Avalos, Jose Ramirez and former interim World featherweight title challenger Ruben Tamayo.

Featherweight

Valdez vs. Gradovich It was announced that Valdez would be fighting on the undercard of Pacquiao-Bradley III on 9 April 2016 for the vacant WBO NABO featherweight title against another prospect and former IBF featherweight champion Evgeny Gradovich (21–1–1, 9 KOs) at MGM Grand Garden Arena in Paradise, Nevada. Valdez defeated Gradovich via 4th round stoppage to claim the vacant title and move up in the WBO rankings. Valdez dominated from the opening bell with head and body combinations also appearing to have broken Gradovich's jaw. In round 4, Valdez caught Gradovich with a left hook which put him on the canvas. Referee Russell Mora started the count. Gradovich managed to get up, but Mora made the call to end the fight.

Valdez vs. Rueda On 23 July 2016, the undercard of Crawford-Postol at the MGM Grand Garden Arena, Valdez fought the undefeated Argentine boxer Matias Rueda (26–0, 23 KOs). Two days prior to the fight, it was announced the fight would be for the WBO featherweight title after Vasyl Lomachenko decided to stay at super featherweight and vacate the featherweight title. Valdez claimed his first world title by winning the vacant WBO championship with a second-round stoppage win over Rueda, dropping him twice with body shots. After the second knockdown, referee Russell Mora waved the count for the TKO.

Valdez vs. Osawa, Marriaga Valdez made his first title defense against 31 year old Japanese boxer Hiroshige Osawa (30–3–4, 19 KOs) on the undercard of Pacquiao-Vargas PPV bout on 5 November 2016. Osawa was ranked #1 by the WBO. The fight took place at the Thomas & Mack Center in Paradise, Nevada. Valdez told FightNews.com of his excitement for his first title defence, "I am excited for this fight. I am looking at this fight like if I am the challenger and I want to keep that mentality to do my best and win the fight. I am ready for my first title defense but I am still training like I am trying to win that title." In a one-sided fight, Valdez halted Osawa in round 7 when he hurt him with a hook followed by a barrage of shots that prompted referee Vic Drakulich to stop the fight. Valdez hit accurate jabs and hard shots to the body and head from the opening bell and managed to knock down Osawa in round 4. At the time of stoppage, Valdez was ahead 60–53 on all three judges' scorecards. According to Compubox, Valdez landed 191 punches, to only 35 by Osawa, which included 129 power punches to his Osawa's 18.

On 17 February 2017 Top Rank announced that Valdez would be making a mandatory defence of his WBO featherweight title against former WBA 'Super' World featherweight title challenger Miguel Marriaga (25–1, 21 KOs) in the main event at the StubHub Center in Carson, California, on 22 April 2017. Marriaga knocked out Guy Robb in August 2016 to become the number one challenger. Bob Arum confirmed the undercard card would also include Gilberto Ramírez and Jessie Magdaleno defending their respective WBO titles and Olympic silver medalist Shakur Stevenson making his professional debut. In front of 5,419 fans, Valdez retained his WBO title in a slugfest, but was taken the 12 round distance for the first time in his professional career. It was also the first time in six fights going back to June 2015 that Valdez had a decision victory. The final judges scorecards were 119–108, 118–109 and 116–111. Many at ringside believed the wider scores did not do Marriaga any justice as it was a back and forth action fight. Marriaga was knocked down in round 10 after some strong middle rounds.

Valdez vs. Servania In July 2017, Top Rank set a return date of 22 September 2017 for Valdez to make a third defence of his WBO title. His manager Frank Espinoza confirmed that he was back in training. A venue in Tucson, Arizona was discussed. On 9 August, it was revealed that Valdez would fight unbeaten Filipino boxer Genesis Servania (29-0,12 KOs) in a voluntary defence at the Tucson Convention Center, with Gilberto Ramírez once again co-featuring. Valdez stated that he would like to unify the division and fight the winner of Leo Santa Cruz and Abner Mares, which was likely to take place in the fall of 2017.

In front of a crowd of 4,103, Valdez managed to recover from a knockdown and score a knockdown of his own, en route to retaining his WBO title via unanimous decision after 12 rounds. The three judges scored the fight 117-109, 116-110, 115-111 in favour of Valdez. Servania dropped Valdez in round 4 with a right hand to the head. Valdez recovered, but looked visibly hurt as he tried to shake it off. Servania was dropped following a big left hook the very next round. After round 6, the fight became one-sided. Servania struggled to let his hands go. After one punch, Valdez would grab Servania in a clinch. Valdez began to work the jab and throw power shots until the closing bell. In the post-fight interview, Valdez shrugged off the knockdown, "I never thought I was gonna be on the canvas like that. But this is boxing. To be completely honest, I wasn't really hurt. I was really surprised. I was like, 'OK, I'm on the floor. But now, I'm gonna get up and I'm gonna do my work." Valdez managed to land 192 of 697 punches (28%), he earned $400,000 for the fight, while Servania, who earned a $55,000 purse connected 120 of his 450 thrown (27%). Servania seemed upset with the wide scorecards, felt it was close and was open to fighting Valdez again. The whole averaged 706,000 viewers on ESPN.

Valdez vs. Quigg Top Rank stated they were planning to have Valdez back in action in February 2018, and hoped to have him fight three times during 2018. On 28 November 2017, according to RingTV, Valdez was to make his next defence on 10 March 2018 at the StubHub Center in Carson, California, headlining a Top Rank card on ESPN. On 3 January 2018, ESPN first reported that a deal was close to being reached for Valdez to defend his WBO featherweight title against British boxer Scott Quigg (34-1-2, 25 KOs). On 13 January, the fight was finalized. Valdez came in at 125.8 pounds at the weigh in for his fourth defence. Quigg however came in 3 pounds over at 128.8 pounds. He was not allowed to re-weigh. According to the California State Athletic Commission, if a fighter is 2 pounds or more over the contractual limit, he would not be allowed to lose the extra weight as he would have been 'dried out', any more weight loss could potentially be dangerous to their health. The CSAC fined Quigg 20% of his official purse of $100,000, with Valdez receiving half of the money from the fine. Quigg's purse was believed to be far more at around $500,000 plus British TV rights. Valdez was due his highest purse at $420,000, not including the additional $10,000 from Quigg's purse.