Sergey Alexandrovich Kovalev (Kovalyov) (; born 2 April 1983) is a Russian former professional boxer who competed from 2009 to 2025. He held multiple light-heavyweight world championships, including the WBA (Undisputed) and IBF titles from 2014 to 2016, and the WBO title three times between 2013 and 2019. Nicknamed the "Krusher", Kovalev is particularly known for his exceptional punching power,Donovan, Jake (28 January 2016). "Sergey Kovalev Motivated To Finish Business, Destroy Pascal". BoxingScene. Retrieved 27 June 2016. although he describes himself as "just a regular boxer".
In November 2019, Kovalev was ranked as the world's second-best light-heavyweight by The Ring magazine, third by BoxRec, and fourth by the Transnational Boxing Rankings Board. In 2014, The Ring named him its Fighter of the Year.Rosenthal, Michael (11 February 2015). "Sergey Kovalev named The Ring Fighter of the Year" . The Ring. Retrieved 27 June 2016.
Early life Kovalev was initially interested in ice hockey, but stopped playing after his equipment was stolen from a dressing room. Because his parents could not afford to purchase replacement equipment, he tried other sports. Several months after he stopped playing hockey, he began to practice both boxing and amateur wrestling.
Amateur career Kovalev started boxing in 1994 at the age of 11 and made his amateur debut in the 1997 Russian Boxing Junior Championship, where he won a gold medal in the middleweight juniors division. One year later, he competed with the seniors and reached the finals, and won the final fight the year after. He competed in the European Championships for the Russian team.
In 2004, Kovalev participated in the Russian Senior Championship for the first time, reached the finals, and won the gold medal in the team event. In 2005, he reached the peak of his amateur career and won two championships: the first as a champion of Russia and the second as a champion among servicemen. He won the silver medal in the championship for servicemen in 2006. In 2007, he finished third in both the Russian Championship and World Military Games in India.
In 2008, Kovalev participated in his final amateur competition and reached the finals, after which he decided to turn professional. Kovalev admitted that he felt forced to leave the national team because of the intense competition between him and others boxers such as Artur Beterbiev (to whom he lost 24–25). Kovalev finished his amateur career with a record of 195–18.
Highlights 2000 Russian Junior Championships silver medalist at light-welterweight 2001 Russian Junior Championships silver medalist at middleweight 2004 Russian Championships silver medalist at middleweight, losing to Matt Korobov 2005 Russian Championships gold medalist at middleweight 2005 World Military Championships gold medalist at light-heavyweight, in Pretoria, South Africa 2006 World Military Championships silver medalist at light-heavyweight, in Warendorf, Germany 2007 World Military Championships gold medalist at light-heavyweight, in Hyderabad, India 2007 Russian Championships bronze medalist at light-heavyweight, losing to Artur Beterbiev 2008 Russian Championships silver medalist at light-heavyweight.
Professional career
Early career Kovalev started his career with a first-round KO of Daniel Chavez at Greensboro Coliseum in Greensboro, North Carolina.
In July 2011, Kovalev won his first North American Boxing Association belt in a 10-round fight with Douglas Otieno from Kenya. His next bout against Grover Young was controversial: during the second round, Kovalev threw a left hook that the referee declared an illegal blow to the back of the head. Due to Young's inability to continue, the fight was declared a technical draw.
In his 2011 fight against Roman Simakov of Russia, Kovalev knocked down his opponent in the sixth round. The fight was stopped and Kovalev was awarded a TKO victory. Simakov was taken to the hospital, where he lapsed into a coma and died three days later.
In 2012, John David Jackson became Kovalev's trainer. Kovalev met Darnell Boone in the ring for the second time and knocked him out in the second round; the win led him to be signed on to Main Events boxing.
On 19 January 2013, Kovalev faced the former World Boxing Association (WBA) light-heavyweight champion Gabriel Campillo. Kovalev took advantage of Campillo's faltering defense and knocked him down with a left hook, one of three knockdowns in the round.
WBO light-heavyweight champion Kovalev vs. Cleverly On 17 August 2013, Kovalev fought Nathan Cleverly for the World Boxing Organization (WBO) light-heavyweight title. Kovalev, who knocked most of his opponents out within three rounds, threw heavy shots in the first round, and hurt Cleverly badly in the third round, dropping him twice. Kovalev knocked Cleverly down a third time in the fourth round until the referee intervened; it was the first time Cleverly had been knocked down as a professional.
Title defenses On 30 November 2013, Kovalev had his first defense of the WBO light-heavyweight title against #15 Ismayl Sillakh (21–1, 17 KO's). In round two, Kovalev dropped Sillakh, and when Sillakh could not regain his footing, Kovalev floored him a second time and ended the fight. The fight averaged 1.25 million viewers on HBO.
On 29 March 2014, Kovalev defended his title against undefeated Cedric Agnew (26–0, 13 KOs) at the Adrian Phillips Ballroom at Boardwalk Hall in Atlantic City. Although Agnew was not known to many boxing fans at the time, he won against Yusaf Mack, Daniel Judah, and Otis Griffin. Agnew's movement gave Kovalev difficulty at times, but after three falls, Agnew was finished in the seventh round. The fight drew an average of 1.048 million viewers on HBO. Although the figures were down from the Kovalev vs. Sillakh bout, the fight was televised at the same time as Wisconsin vs. Arizona, competing to reach the Final Four of the NCAA's college basketball tournament.
On 2 August 2014, Kovalev defended his WBO title against undefeated Australian contender Blake Caparello (19–0–1, 6 KOs) at the Revel Casino Hotel in Atlantic City, New Jersey, and it was televised on Boxing After Dark. Kovalev hoped for a unification fight against WBC champion Adonis Stevenson, but Stevenson stated he would only fight on Showtime; as Kovalev was contracted to HBO, he had to fight Caparello instead. Caparello scored a flash knockdown after catching Kovalev with a solid shot while Kovalev was off balance. Kovalev, however, was unhurt and even appeared enraged, and beat Caparello in a second-round technical knockout. The fight was watched by an average of 990,000 viewers and peaked at 1.052 million. Kovalev's victory allowed him to fight Bernard Hopkins in the fall of 2014. Main Events spokesperson Kathy Duva believed there was a loss of focus due to building pressure, which was why Kovalev was dropped by Caparello. Kovalev shrugged off any claims that he felt pressure, saying, "I didn't think about Bernard Hopkins tonight. I was focused on this fight. It is very important. A big step for me. If I do not win the fight, there is no fight with Bernard Hopkins." Lou DiBella, a promoter of Caparello, praised Kovalev, particularly the body shot that ended the fight. Negotiations for the Hopkins fight began prior to the Caparello fight.
Unified light-heavyweight champion
Kovalev vs. Hopkins
On 8 November 2014, Kovalev and Hopkins (55–6–2, 32 KOs) fought in a unification bout at the Boardwalk Hall. The fight was televised on HBO World Championship Boxing. Kovalev defeated Hopkins by unanimous decision to retain the WBO light-heavyweight title, and win the WBA (Super) and IBF titles. In a one-sided fight, Kovalev knocked Hopkins down in the first round, and won every single round on all of the three judges' scorecards. The score totals of the fight were 120–107, 120–107, and 120–106. In round 12, Kovalev landed 38 punches on Hopkins, the most any boxer had ever landed on him in a single round in his 41 fights recorded by CompuBox. Hopkins earned $1 million whilst Kovalev earned $500,000. Kovalev said after the fight, "I'm very happy. This victory was for my son Aleksandr." The fight was considered successful, as it was watched by an average of 1.328 million viewers.
Kovalev vs. Pascal On 14 March 2015, Kovalev defended his world titles and fought Jean Pascal (29–2–1, 17 KOs) for the WBC Diamond light-heavyweight title at the Bell Centre in Montreal live on HBO. Kovalev had just been named Sports Illustrated's 2014 Fighter of the Year. In the eighth round, the referee stopped the fight as he felt Pascal was badly injured. However, Pascal felt the interruption was unfair and demanded a rematch; at the time, Kovalev led 68–64 on all three judges' scorecards. The fight averaged 1.152 million viewers on HBO.
Kovalev vs. Mohammedi On 25 July 2015, Kovalev fought French boxer Nadjib Mohammedi (37–3, 23 KOs) at the Mandalay Bay Resort & Casino in Las Vegas. Kovalev knocked Mohammedi down once in the second round and again in the third round. The second knockdown ended Mohammedi's night and gave Kovalev his 25th knockout victory. Kovalev said in the post-fight interview, "I wanted more rounds. I wanted him to look like a clown. I wanted him to look foolish. I'm very happy that I got the victory," Kovalev said. "I gave my best. I am happy. I told him to stand up. It was a short show. People didn't see boxing." Abel Sanchez, Mohammedi's trainer, believed his boxer was overwhelmed with being on the main event and feeling pressured. Kovalev earned $750,000 and Mohammedi earned a career-high $270,000. The fight was seen by just over 1 million viewers on HBO.
Duva stated that Kovalev was looking for a homecoming bout next, likely on 28 November in Moscow, and stated she would call promoter Yvon Michel to set up a fight with two-time Olympian Artur Beterbiev (9–0, 9 KOs), who defeated Kovalev in the amateurs. The fight was unlikely to happen as Beterbiev was advised by Al Haymon, and performed on Premier Boxing Champions, who were banned by HBO.
Kovalev vs. Pascal, Chilemba Kovalev had a rematch with Pascal on 30 January 2016 at the Bell Centre in Montreal on HBO. Pascal was pumped for the rematch, stating it would turn out differently to the first fight: "I put him down in the eighth round in the first fight, but [the referee] called it a slip. But I promise you that Kovalev is going to have a full plate in the rematch. I'm going to have a full plate as well, but I have a new trainer [Freddie Roach]. I'm going to teach him respect and to respect Canadian boxing fans."
Kovalev dominated the fight, both outpunching and outlanding Pascal by wide margins. Kovalev won when Roach refused to let Pascal continue after the seventh round. During the pause, the scorecards read 70–62 three times in favor of Kovalev. Round 5 was scored 10–8 on all three judges' cards without a knockdown. After the round, Roach threatened to pull Pascal. According to CompuBox stats, Kovalev landed 165 of 412 punches (40%) and Pascal landed 30 of 108 blows (28%).
After the fight, Kovalev said his future plans would likely include a fight with former super middleweight champion Andre Ward, but he first wanted a unification bout with reigning WBC and recognized Adonis Stevenson, a lineal champion. Kovalev called Stevenson "Adonis Chickenson" during the post-fight interview. Stevenson, who was in attendance, responded by confronting Kovalev in the ring surrounded by three bodyguards. The fight averaged 1.179 million viewers on HBO and peaked at 1.269 million viewers.