[3] Jermell graduated to the elite level on the amateur boxing scene after two years, winning a bronze medal at the 2005 Junior Olympics at age fifteen.
In 2009, he scored a shutout four-round decision over Juan Serrano on February 28, got a decision win over Carlos Garcia over six rounds on April 4, TKO'd Federico Flores Jr. in the eighth round on June 26, defeated Vardan Gasparyan in six, and then finished up the year with a second-round knockout of unbeaten prospect Abdon Lozano.
Chatman's only previous loss was a six-round decision to 2008 U.S. Olympian Demetrius Andrade in 2009, but he was no match for Charlo, who controlled his awkward opponent for most of the fight.
In a close back and forth affair were Charlo controlled the action in the early rounds with his aggression and power shots, he defeated Hopkins by unanimous decision.
[6] Charlo next fought in October against 34 year old Jose Angel Rodriguez (17-2-1, 2 KOs) in a scheduled 10 round fight at the BB&t Center in Sunrise, Florida.
In November 2013, it was reported that Charlo would step up and fight Philadelphia veteran boxer and former world title challenger Gabriel Rosado (21-7, 13 KOs) on January 25, 2014, at D.C. Armory in Washington, D.C., on Showtime.
[9] Charlo passed the biggest test of his career and looked good doing so as he easily out boxed Rosado to win a lopsided 10-round unanimous decision.
[14][15] Charlo was scheduled to fight Demetrius Andrade (21-0, 14 KOs) at Mandalay Bay Resort & Casino on December 13, 2014, for WBO light middleweight title but on November 16 was cancelled due to purse issues.
[17][18] Following the cancellation of the Andrade fight, Charlo fought in December 2014 against Mario Alberto Lozano on the undercard of Amir Khan vs. Devon Alexander at the MGM Grand Arena in Las Vegas.
[21] On February 17, 2015, Showtime announced that Charlo would appear on a doubleheader at the Palms Casino Resort in Las Vegas.
[22] Other venues discussed for the bout were Illusions Theatre in San Antonio, Texas, and StubHub Center in Carson, California.
Charlo followed on by landing a barrage of punches to which Alcine had no reply to causing referee Jon Schorle to stop the fight at 1 minute and 20 seconds.
The card also included top light middleweight boxers Erislandy Lara, Vanes Martirosyan, Austin Trout and brother Jermall, who successfully defended his IBF title.
Referee Tony Weeks immediately jumped in to protect Jackson, who was knocked into the corner turnbuckle, and signaled the knockout 51 seconds into the round.
[35] Charlo's defence against Hatley was pushed back to April 22, 2017, on the Shawn Porter vs. Andre Berto undercard.
[37] Charlo successfully defended his WBC title for the first time when he knocked Hatley out unconscious in round 6 after a right hook to the head.
[41] On May 11, 2017, the WBC updated their rankings, placing 21 year old undefeated American prospect Erickson Lubin (18-0, 13 KOs) at number one.
[42] On July 20, Boxing Scene reported the fight could take place on September 30, 2017, as part of a double header, which would include Jarrett Hurd defending his IBF title against former light middleweight champion Austin Trout on Showtime.
[43] On August 24, Ringtv announced that the fight between Charlo and Lubin would take place on October 14 at the Barclays Center in New York City.
[48] At a Showtime press conference on January 24, 2018, it was announced that Charlo would make a third defence of his WBC title on June 9 on the undercard of Santa Cruz vs.
In October 2017, he suffered his first stoppage defeat to the hands of IBF champion Jarrett Hurd and prior to that, in May 2016, he lost a decision to Jermell's brother and then-IBF titleholder Jermall Charlo.
Coming into this fight, Trout defeated Colombian boxer Juan De Angel via an 8 round unanimous decision in February 2018.
[56] In October 2018, Premier Boxing Champions announced a doubleheader for December 22, 2018, at the Barclays Center in Brooklyn, New York.
[59] Charlo destroyed his opponent with 2:41 left in the third round with a big right to the chin, right after Cota beat the count from a previous knockdown.
It was announced that Harrison is fully recovered and Charlo would fight him on 21 December at Toyota Center in Ontario, California.
Charlo was scheduled to defend his title against the WBA (Super), IBF, and IBO light middleweight champion Jeison Rosario on September 26, 2020, in a unification bout at the Mohegan Sun Arena in Uncasville, Connecticut.
[62] The result was controversial, with much attention being brought to judge Nelson Vazquez’s 117-111 Charlo card, which was described as "terrible" by Andre Ward.
Charlo was ordered to defend his WBO championship against Tszyu before September 30, 2023, however he instead decided to face Canelo Álvarez.
[65] This led to the WBO elevating Tszyu to full light-middleweight champion, stripping Charlo of his undisputed crown.
[66] Charlo moved up two weight classes to face undisputed super middleweight champion Canelo Álvarez on September 30 in a lucrative bout.