Floyd Mayweather Jr vs Juan Manuel Marquez commemorative limited edition, ( 1 of only 1500) official onsite poster, commissioned by one of the Worlds most sought after up and coming artist Richard T. Slone. Billed "One Returns, One Is Ready", 19th September 2009, MGM Grand, Las Vegas. Measuring 24" x 18".

Condition mint

Mayweather W unanimous decision
The opening round was largely a feeling-out round as Mayweather worked with a quick jab and a lunging left hand. Marquez thew the occasional hook but was unable to connect against the speedy Mayweather. A minute into Round 2, Marquez landed a right hand that got the attention of Mayweather. A Mayweather left hook, however, caught Marquez coming in and put him down midway through the round. He was up quickly and received a mandatory eight-count. Mayweather continued to outbox Marquez in the third, finding success with the lunging left hook. Mayweather continued to show impeccable defensive skills in Round 4 making Marquez miss with most of his shots. Marquez did land another right hand in the final minute, however, that brought a smile to the face of Mayweather. By the end of Round 4, Mayweather had opened a small cut above the right eye of Marquez. Round 5 saw Mayweather continue to be too fast for Marquez. He began landing more frequently with both left and right hands. Marquez did seem to have a greater sense of urgency in Round 5 as he was clearly trailing on the cards. The disparity between the two fighters grew in the 6th as Mayweather began landing a lead right hand that at one point wobbled Marquez, who had begun bleeding from the nose. Marquez was simply unable to land against the supremely quick Mayweather, who either dodged the attack outright or shoulder rolled it with ease. Round 7 saw Mayweather continuing to land with the jab and looking to land uppercuts as Marquez came in. Marquez at one point had Mayweather backed into the ropes but could not connect against Mayweather's movement. In the last minute of Round 8, Mayweather backed against the ropes and encouraged Marquez to attack, at which Marquez came in wildly throwing hooks to the body. As the bell rang, Mayweather smiled walking to his corner attempting to further aggravate Marquez. Marquez opening the 9th Round strong and was able to land against Mayweather intermittently. A big left hand, however, caught Marquez flush toward the end of the round. The 10th Round continued with much of the same; Mayweather landing the occasional lunging left hand and lead right and Marquez showing desire but not connecting with anything of significance. In the 11th Round, Marquez continued to show effort but still took big punches. The final round went like the many previous with Mayweather totally in control.

Price: £ SOLD

Floyd Joy Mayweather, Jr. (born Floyd Sinclair on February 24, 1977). He is undefeated as a professional, with a record of 40–0 (25 KOs). He is the son of Floyd Mayweather, Sr., a former welterweight boxing contender.
From July 18, 2005 through June 2, 2008 he was rated by The Ring magazine as the number-one pound for pound boxer in the world. Mayweather has won six world boxing championships in five different weight classes; he is the former WBC welterweight champion, a title he vacated upon his retirement. He was named Ring Magazine Fighter of the Year in 1998 and 2007. ESPN.com listed Mayweather at #48 on their "50 Greatest Boxers of All Time" list.

Background
Floyd Mayweather Jr. was born in Grand Rapids, Michigan, with his mother's last name. His last name would change to Mayweather shortly thereafter. His father, Floyd Mayweather, Sr., is a former welterweight contender, while two of his uncles, Jeff Mayweather and Roger Mayweather, won championship titles.

Amateur Career
Before Mayweather had a successful amateur career of 84-6 he was raised in his home town. He won national Golden Gloves championships in 1993 (at 106 lb), 1994 (at 114 lb), and 1996 (at 125 lb). He was given the nickname "Pretty Boy" by his amateur teammates because he had relatively few scars, a result of the defensive techniques that his father (Floyd Mayweather, Sr.) and uncle (Roger Mayweather) had taught him. In his orthodox defensive stance, Mayweather—much like James Toney—often utilizes the 'shoulder roll'. The shoulder roll is an old-school boxing technique in which the right hand is held normally or slightly higher than normal, the left hand is down around the midsection, and the lead shoulder is raised high on the cheek in order to cover the chin and block punches. The right hand (from orthodox stance) is used as it normally would be to block punches coming from the other side, such as left hooks. From this stance, Mayweather blocks, slips, and deflects most of his opponents' punches, even when cornered, by twisting left and right to the rhythm of their punches.

At the 1996 Olympics in Atlanta, Mayweather won a bronze medal by reaching the finals of the featherweight (57 kg) division's 31-boxer tournament. In the opening round, Mayweather led 10-1 on points over Bakhtiyar Tileganov of Kazakhstan before he won by round 2 referee stoppage. In the second round, Mayweather outpointed Artur Gevorgyan of Armenia 16-3. In the quarterfinals, Mayweather survived a late rally by Lorenzo Aragon of Cuba to win 12-11. In his semifinal bout against the eventual silver medalist, Serafim Todorov of Bulgaria, Mayweather lost by a controversial decision that the U.S. team officially protested. Many who saw the bout, including the referee (who mistakenly raised Mayweather's hand when the decision was read), believed that Mayweather had won.

Professional Career - Super Featherweight
Mayweather fought his first professional bout on October 11, 1996 against fellow newcomer Roberto Apodaca. Apodaca was knocked out in round 2. Mayweather's trainer at the time was his uncle, Roger Mayweather, because Floyd Mayweather, Sr. was still imprisoned after having been convicted of illegal drug trafficking in 1993. Mayweather, Sr. took over as Mayweather, Jr.'s trainer when he was released from prison (after Mayweather, Jr.'s fourteenth fight—a second-round knockout of Sam Girard). From 1996 to early 1998, Mayweather won most of his fights by knockout or TKO.

In 1999, Mayweather won his first world title, the WBC junior lightweight (130 lb) championship, when the corner of Genaro Hernandez stopped the fight after round 8. Hernandez had never been defeated at the weight class. From there, Mayweather defended his title with performances against contenders such as Angel Manfredy and Carlos Gerena.

Before he fought against former WBC featherweight champion Gregorio Vargas in early 2000, Mayweather fired his father as his manager and replaced him with James Prince. A few months after the fight, the rift between the father and son became wide enough that Mayweather, Jr. fired Mayweather, Sr. as his trainer as well. Roger Mayweather returned to his role as Mayweather, Jr.'s trainer in his next bout—a non-title fight against Emanuel Burton. In an interview in 2004, Mayweather, Jr. said that he loves Mayweather, Sr. as his father but feels that he has better chemistry with Roger, and his father had put too much pressure on him to be perfect.

Mayweather's biggest fight as a junior lightweight was on January 20, 2001, against Diego Corrales. At the time, neither fighter had been defeated or knocked down. In the bout, Mayweather won every round and knocked down Corrales five times (three times in round 7 and twice in round 10). After the fifth knockdown, Corrales' cornermen climbed onto the apron and stopped the fight, thereby establishing Mayweather as one of the claimants to boxing's mythical pound-for-pound title. At the time of the stoppage, Mayweather was way ahead on the scorecards, leading by the official tallies of 89-79, 90-79, and 90-78.
In Mayweather's next bout, on May 26, 2001, future IBF champion Carlos "Famoso" Hernández knocked down Mayweather for the first time. Mayweather entered the bout with injured hands. When Mayweather hit Hernández with a left hook in round 6, the pain caused Mayweather to drop his left hand to the canvas, and the referee called it a knockdown. Nonetheless, Mayweather won the fight by unanimous decision. In the award-winning documentary film More Than Famous, Hernández's bout against Mayweather was prominently featured.

Mayweather's last fight in the junior lightweight division was against future junior lightweight and lightweight champion Jesús Chávez. It was Mayweather's eighth defence of the WBC junior lightweight title, which he had held for more than three years. He won when Chávez's corner stopped the fight after round 9. Mayweather had such difficulty making weight for this fight that he did not eat for four days before the weigh-in.

Lightweight
In 2002, Mayweather moved up to the lightweight (135 lb) division. Mayweather fought only four bouts at this weight, but they were all world championship fights. Mayweather won two bouts for the WBC and The Ring lightweight belts against José Luis Castillo. In their first bout, Castillo had success when he cut off the ring and used his strength to wear down Mayweather. But it was not enough to make up for his slow start in the fight. Still, many analysts and fans feel that Mayweather should have lost the fight, but he won by unanimous decision. In the rematch, Mayweather used his quick footwork and combinations to coast to another unanimous decision victory, this time with no controversy. The smaller Mayweather was outweighed by Castillo on the night of the fight, as Castillo weighed 147 and Mayweather weighed 138.

On April 19, 2003, Mayweather dominated the Dominican Victoriano Sosa and won by unanimous decision. Mayweather's next fight (on November 1, 2003) was in his hometown of Grand Rapids, Michigan. He fought against the promising South African knockout specialist Phillip Ndou, whose record was 31-1 with 30 KOs. Uncharacteristically, Mayweather was offensively oriented from the beginning of the fight. Round 5 was one of 2003's most action-packed. In the middle of the round, Mayweather landed a barrage of powerful punches. Ndou endured and threw wild punches that forced Mayweather into the ropes, but Mayweather demonstrated his rhythmic defensive technique and let Ndou wear himself out further. In round 6, Ndou wobbled and was pushed down. In round 7, a combination of three straight right hands knocked down Ndou and caused a TKO, when N'Dou's trainers - Nick Durandt and Tommy Brooks - contemplated throwing in the towel. However, the ref stopped the fight as Ndou did not move forward (as part of a test to ensure he was okay from the knockdown).

Junior Welterweight
Mayweather then moved up to the junior welterweight (140 lb) division. His first fight in this division was against southpaw DeMarcus Corley. Mayweather used his speed to win the early rounds. In the first minute of round 4, Corley landed a solid left hand and drove Mayweather into the ropes, but Mayweather recovered and fought back ferociously. After that round, Mayweather mostly controlled Corley. Mayweather knocked down Corley in rounds 8 and 10, but Corley was able to continue until the end. Mayweather won by unanimous decision. The fight was Mayweather's only one in 2004.

On January 22, 2005, Mayweather fought against Henry Bruseles of Puerto Rico in a WBC junior welterweight title eliminator bout. Mayweather easily outclassed Bruseles throughout the first seven rounds. In round 8, Mayweather knocked down Bruseles twice, and the fight was stopped.

The win over Bruseles made Mayweather the mandatory challenger for Arturo Gatti's WBC Super Lightweight Championship. Before the fight, Mayweather was supremely confident. He described Gatti with terms such as "a C+ fighter", "a fake", and "a blown-up club fighter." The pay-per-view fight occurred on June 25, 2005 in Atlantic City, New Jersey, where the fans heavily supported Gatti. Near the end of round 1, Mayweather pushed Gatti's head down in close and the referee instructed the fighters to "Stop punching." Gatti broke and left himself vulnerable while Mayweather either deliberately or indeliberately disobeyed the referee's command and continued to land punches. Gatti turned to the referee to complain and Mayweather capitalised, sending Gatti to the canvas with more shots for what was scored a knockdown, despite Gatti's complaints. Throughout the next five rounds, the much faster Mayweather landed with nearly every big shot against Gatti, who had no offense with which he could return fire. Gatti's corner stopped the fight after round 6—giving Mayweather his third world title. It was one of the most one-sided and most impressive boxing clinics in boxing history. In the post-fight interview, Mayweather praised Gatti and claimed that his pre-fight comments "were just to sell tickets." Among many boxing experts, Mayweather's one-sided dominance over Gatti solidified his position as the best pound-for-pound fighter in the world. Compubox had Mayweather outlanding Gatti by a total of 168 to 41.

One month after the Gatti clinic, Mayweather went to trial for a domestic violence charge. He faced a minimum of one year in prison if he was convicted. Mayweather had been accused of violence against his former girlfriend, Josie Harris. Harris had claimed that Mayweather had punched and kicked her during an argument in Mayweather's Bentley, outside a Las Vegas nightclub in 2003. During the trial, however, Harris admitted that she had lied on the initial police report and testified that Mayweather never hit her. The jury acquitted Mayweather.

Welterweight
On November 19, 2005, Mayweather fought a non-title bout at 147 lb (67 kg) against welterweight Sharmba Mitchell. In round 3, Mayweather knocked down Mitchell with a straight right hand to the head. In round 6, another straight right hand—this one to Mitchell's body—dropped Mitchell again and ended the fight.

Floyd Mayweather, Jr. vs. Zab Judah
On April 8, 2006, Mayweather defeated Zab Judah for the IBF and vacant IBO world welterweight titles by unanimous decision. Beforehand, the fight had been jeopardized after Judah lost the WBA, WBC and Ring Magazine welterweight titles to Carlos Manuel Baldomir on January 7, 2006, but Mayweather's and Judah's camps reworked the contract and decided that the fight would go on. In the fight, Mayweather stayed calm during Judah's aggressive early rounds. Mayweather began to dominate Judah in round 5, and Judah eventually bled. Near the conclusion of the tenth round, Judah hit Mayweather with a left hand that was clearly below the belt and followed up with a right-handed rabbit punch. After referee Richard Steele called time with five seconds remaining in the round, Roger Mayweather entered the ring and approached Judah, but Steele restrained him. Judah's father and trainer, Yoel Judah, entered the ring as well. Floyd remained in the neutral corner while both Yoel and Zab scuffled with Roger (and others who had entered the ring) until police and security managed to restore order. Roger was thrown out, but the fight continued and went the scheduled 12 rounds. Mayweather won by the official scores of 116-112, 117-111, and 119-109. Compubox statistics showed Mayweather as landing 188 punches to 82 for Judah.

Five days after the fight, the Nevada State Athletic Commission decided not to overturn the result of the bout, but Roger Mayweather was fined US$200,000 and suspended for one year. The suspension entails that Roger can train Mayweather, Jr. in the gym but cannot work the corner during fights. On April 17, 2006, the IBF ordered a rematch between Mayweather and Judah, but the NSAC suspended Judah for one year on May 8, 2006. Mayweather vacated the IBF title on June 20, 2006.
Mayweather rejected an offer of US$8 million to fight Antonio Margarito and split with promoter Bob Arum. De la Hoya, however, postponed his decision until 2007, leaving Mayweather in the awkward position of choosing his next opponent. Mayweather considered moving up in weight again to fight junior middleweight champion Cory Spinks, but because of negative publicity and Spinks' impending mandatory defence of his title, he finally decided to face WBC and The Ring welterweight champion Carlos Baldomir on November 4, 2006 in Las Vegas.

Mayweather would ultimately defeat Baldomir by unanimous decision for both titles. Ringside punch statistics showed Mayweather landing 199 of 458 punches, while Baldomir landed just 79 of 670. Mayweather earned $8 million for the fight, while Baldomir was paid $1.6 million. Both were career highs in earnings for each fighter at the time. During the fight, Baldomir chased Mayweather sluggishly, unable to land any meaningful shots but trying to remain the busier fighter, while Mayweather picked away with sharp jabs and hooks, even managing to cut Baldomir over his left eye in the first round. This pattern continued throughout the fight. The defensive-minded Mayweather put on what many witnesses and Mayweather himself called a "boxing clinic" to take Baldomir's WBC and Ring welterweight titles in a lopsided 12 round decision. Two judges had Mayweather winning all 12 rounds, with the other giving all but two rounds to Mayweather. After the fight Mayweather called out for a fight with Oscar De la Hoya.

Super Welterweight - De La Hoya vs Mayweather
Mayweather's next match was the long-anticipated superfight against six-division champion and current WBC Super Welterweight titleholder Oscar De La Hoya on May 5, 2007. De La Hoya's belt was on the line, which required Mayweather to move up in weight from 147 pounds to 154.
Despite De La Hoya's insistence that money was not a factor, the Mayweather-De La Hoya bout set the record for most PPV buys for a boxing match with 2.4 million households, shattering the record of 1.95 million for Evander Holyfield-Mike Tyson II. Around $120 million in revenue was generated by the PPV, which set another record. With the percentages factored in, Oscar De La Hoya ended up earning $58 million for the bout, the highest purse ever for a fighter. The previous record was $35 million, held by Tyson and Holyfield. Floyd Mayweather earned about $25 million for the fight.

At one time, Floyd Mayweather, Sr., Mayweather, Jr.'s father, was in talks to train Oscar De La Hoya and be in his corner during the fight but he decided to train with Freddie Roach. Mayweather won by split decision in 12 rounds, capturing the World Boxing Council (WBC) title.

Return to Welterweight - Fight with Ricky Hatton
Mayweather decided to relinquish his WBC junior middleweight championship and kept his WBC welterweight championship. On July 28, 2007, it was announced that Mayweather would come out of his short retirement to fight light welterweight champion Ricky Hatton which was promoted by Oscar De La Hoya's promotion company Golden Boy Promotions and Floyd Mayweather's "Mayweather Promotions." The bout was labelled "Undefeated" and took place on December 8, 2007, at the MGM Grand Garden Arena, Las Vegas, Nevada. In the build up to their fight, Mayweather claimed that he was the greatest boxer ever, saying: "I respect what Robinson and Ali did for the sport. But I am the greatest, and this is my time."

Mayweather controlled the fight from the start and knocked Hatton out in the 10th round to retain the welterweight championship. Hatton suffered a cut over his right eye in round three from the punches of Mayweather, and it seemed that it was at this point that his pace and movement began to slow. In round six Hatton lost a point for punching the back of Floyd's head as he was caught draped on the ropes. Mayweather had a huge eighth round, landing a number of clean, effective power shots.
In the 10th round Hatton was caught with a left hook thrown from Mayweather's hip, fell forward head first into the turnbuckle and hit the deck.

Hatton managed to make it to his feet, but was clearly dazed. Two more big lefts in a flurry put Ricky down again and Cortez stopped it at 1:35 of round 10.
After the fight, Mayweather said that Hatton was one of the toughest fighters he had ever fought, that he just kept coming and coming, and that he wants to promote fights, with Hatton being his first client. Mayweather announced a two-year layoff from boxing to concentrate on his promotional company.

On 18 March 2009, it was reported that Mayweather was "ready to dance again" according to a source from within the Mayweather camp. Announcing his return to the ring seemed to be somewhat of a formality at this point, as even his estranged father, current trainer of Ricky Hatton, Floyd Mayweather Sr. stated, "He's gonna fight again."

Mayweather Jr. vs. Márquez
On May 1, 2009, it was confirmed that Mayweather was coming out of a 16-month retirement to fight lightweight champion Juan Manuel Márquez at a catchweight of 144 lbs. on July 18 at the MGM Grand in Las Vegas on HBO PPV. The fight was postponed due to a rib injury Mayweather received during training. The fight took place on September 19, 2009 in conjunction with Mexican Independence Day, traditionally a big boxing weekend. During the official weigh in for their 144 lb bout, Mayweather failed to meet the required limit by weighing in at 146 lbs, four pounds heavier than Marquez. He was subsequently fined as a result. However it was later revealed that the contract was changed so that Mayweather could make weight within the welterweight limit of 140-147 lbs as long as Marquez received a large guaranteed sum of money. Mayweather won the fight by unanimous decision.









Juan Manuel "Dinamita" Márquez Méndez (born August 23, 1973 in Mexico City), current WBA and WBO Lightweight world champion as well as the current Ring Magazine Lightweight champion. He has also held the IBF, WBA, and WBO Featherweight titles, and the WBC Super Featherweight title. He is the fifth Mexican boxer to become a world champion in three different weight classes after Marco Antonio Barrera, Érik Morales, Julio César Chávez, and later Fernando Montiel.

Personal Life
Márquez has a brother named Rafael Márquez, who is a former world champion at the Bantamweight, and Super bantamweight division. The two are listed in Ring Magazine's top ten pound for pound list. They are one of four sets of Mexican brothers to hold world titles. Márquez and his wife, Erika, have two sons.

Professional Career
Márquez had an amateur record of 35-1 that included two Golden Glove tournament wins. He made his professional boxing debut at age 19 on May 29, 1993, and lost his first bout via disqualification to Javier Duran.

Featherweight
Márquez remained undefeated for another six years as he compiled a record of 29-1 that included a win against future champion Agapito Sanchez, and former champions Julio Gervacio, and Alfred Kotey. In 1997, Márquez won the NABO Featherweight title, which he defended seven times. During this time, he was referred to as the "best fighter without a world title" Márquez was WBO Featherweight champion Naseem Hamed's mandatory challenger for 22 straight months, however, the WBO allowed Hamed to schedule other fights instead.

Márquez earned his first bout for a world title on September 11, 1999, when he lost a controversial decision to then-unbeaten WBA featherweight champion Freddie Norwood. Marquez was the aggressor throughout most of the bout but fought tentatively as Norwood was reluctant to engage, and often wrestled with Marquez in the many clinches. Marquez was knocked down in the second round. In the 8th round, Norwood's glove touched the canvas after an exchange, however, it was not ruled a knock down by the referee who was standing opposite to the action. In the 9th round, Marquez scored a knockdown after a two punch combination. HBO Punchstat had Norwood landing 73 out of 290 punches thrown to Marquez's 89 out of 444.
On November 20, 1999, Márquez faced Remigio Molina, and defeated him in eight rounds. In 2000, he defeated former champion Daniel Jimenez, and five fights later, he defeated future champion Robbie Peden in ten rounds, and captured the NABF, and USBA Featherweight titles.

Juan Manuel "Dinamita" Márquez received his second bout for a world title on January 2, 2003, when he defeated five-time featherweight champion Manuel Medina, and captured the vacant IBF Featherweight title. In the 2nd round, Marquez connected with a three-punch combination that floored Medina. The fight was stopped in the 7th round after Marquez knocked Medina down for a second time.
He then defeated Derrick Gainer later in the year in a unification bout to win the WBA Featherweight title and become "Super Champion".

First Bout With Pacquiao
In May 2004, Márquez fought Filipino boxer Manny Pacquiao in a drawn bout where he was knocked down 3 times in the first round by Pacquiao. Marquez fought himself back into the fight; after a very close second round, it was clear this would be a long night for Pacquiao. Marquez was able to counter effectively, dominating the middle rounds and effectively countering Pacquiao in the later rounds; however, the fight was ruled a draw. Many who were startled at Marquez surviving the first round saw Marquez take control of the fight thereafter, only to be denied the win on the judges' scorecards. The final scores were 115-110 for Márquez, 115-110 for Pacquiao, and 113-113. The second fight would prove to be more controversial.

On September 18, 2004, Márquez defeated future champion Orlando Salido. In 2005, Márquez was stripped of his WBA, and IBF Featherweight titles, for his inability to defend it against various boxers after potential bouts failed to draw a bid. In 2006, Márquez attempted to regain a title, coming up short in a controversial decision loss to Indonesian boxer Chris John for the WBA Featherweight championship title. The disputed decision led to the Ring Magazine's removal of Márquez from its pound-for-pound top 10 list.

In late 2006, Márquez captured the WBO Interim Featherweight title defeating Thai boxer Terdsak Jandaeng, and defending it against Filipino boxer Jimrex Jaca with a nine round knockout in Hidalgo, Texas. Márquez was promoted to world champion status in December 2006 when previous champion Scott Harrison vacated the title. Márquez vacated the Featherweight title the following year to challenge WBC Super Featherweight champion Marco Antonio Barrera.

Super Featherweight
On March 17, 2007, Juan Manuel "Dinamita" Márquez became the WBC Super Featherweight champion by defeating Barrera in Las Vegas by unanimous decision. Juan Manuel "Dinamita" Márquez's first defence of his title was to be held on September 15, 2007 against Argentinian boxer Jorge Rodrigo Barrios. However, Barrios withdrew from the bout due to injury, prompting American boxer Rocky Juárez to challenge Márquez for the title in November 3, 2007 in a losing effort.

Second Bout With Pacquiao
On November 29, 2007, Márquez announced that he would defend his championship title against Manny Pacquiao, whom he fought to a controversial draw in 2004. On March 15, 2008, Juan Manuel Márquez lost his Super Featherweight Championship to Manny Pacquiao via a highly disputed split decision. Márquez suffered a knockdown in the third round that proved to be the difference in the decision as the remaining rounds were scored dead even. The fight was controversial with some Filipino boxing analysts saying Marquez should be the winner.Compubox scoring had Juan Manuel Márquez landing 42/201 (21%) jabs to Pacquiao's 43/314 (14%) jabs, it also had Márquez scoring 130/310 (42%) power punches to Pacquiao's 114/305 (37%) power punches. Richard Schaefer, Golden Boy Promotions CEO, offered a $6 million guarantee to Pacquiao for a rematch. Pacquiao's promoter, Bob Arum, said, “I’m not saying they’ll never fight again, but you have to let it bake for a while”. Pacquiao, for his part, said: "I don't think so, this business is over" as he plans to move up to the lightweight division.

Lightweight
Márquez moved up to the Lightweight division in order to fight the lineal Ring lightweight champion Joel Casamayor on the weekend leading up to Mexican Independence Day at the MGM Grand, Las Vegas. On September 13, 2008, he defeated Casamayor in the 11th round after two knockdowns, and captured his sixth world title in three different weight classes. In the first four rounds of the bout, Márquez continually walked into counter punches from Casamayor. It took Márquez until the fifth round to be able to find the range with his right hand. By the fifth round, a cut over Casamayor's right eye was opened from a clash of heads. Rounds five, six, seven, and eight were rounds where Márquez landed straight punches from the outside, but he was also struck by Casamayor whenever he lunged forward. Two minutes into the eleventh round, Casamayor was knocked down by a right punch as he pulled away from an intense exchange. Casamayor was able to get on his feet, but it was clear he was still shakey from the knockdown. As soon as the action was allowed to resume, Márquez went in for the kill as he let his punches go in furious combination. Casamayor punched back, but he was knocked down again with about 7 seconds left in the round. Referee Tony Weeks stepped in the bout, and stopped the fight as he deemed Casamyor unable to continue. The official judges had the fight scored 95-95, 95-95, and 97-93 for Márquez before the 11th round knockout. After the win, Ring magazine ranked Márquez second on its pound for pound list, and rated him the number one boxer in the Lightweight division.

Márquez vs. Díaz
On February 28, 2009, Márquez defeated IBO champion, and former WBA, IBF, and WBO Lightweight champion Juan Díaz by knockout. Díaz controlled the fight early in the bout as the two boxers exchanged punches. Díaz opened a cut above Márquez's right eye in the fifth round, and looked to control the bout, but Márquez responded by opening a gash above Diaz's right eye, and stunning him with a left hook before the end of the eighth round. Márquez landed two hard rights to Díaz's face in a three-punch combination that knocked Díaz down with 35 seconds remaining in the ninth round. Díaz rose, but seconds later, Márquez followed with a right uppercut to the chin that knocked Díaz down for a second time. Referee Rafael Ramos waved an end to the fight after two minutes and 40 seconds of the ninth round. This fight is currently the frontrunner for 2009 fight of the year. With the victory, Márquez defended his Ring Lightweight title, and claimed the WBO, the WBA, and the IBO Lightweight championship titles. After the fight Márquez expressed an interest in fighting Floyd Mayweather Jr.

Welterweight - Márquez vs. Mayweather
Márquez moved up to the Welterweight division, and will fight undefeated and former number one pound for pound champion Floyd Mayweather Jr. The fight was scheduled to take place at 144 lbs on July 18, 2009 at the MGM Grand arena; but has since been postponed due to a rib injury sustained by Mayweather. The bout has been rescheduled for September 19, 2009. . During the official weigh in for their 144lb bout, Marquez weighed in at 142lbs. Mayweather defeated Marquez on a unanimous decision.