Juan Manuel Marquez Biography: Forty-Two Rounds With One Man

Two men fought each other four times across eight years, from featherweight up to welterweight, and after 42 rounds the argument was still open.

Everything about Juan Manuel Márquez can be told from inside that series.

Iztacalco, Before Any of It

He was born on August 23, 1973 in Iztacalco, a working-class borough on the eastern edge of Mexico City. His father Rafael had boxed semi-professionally. His younger brother, also Rafael, became a world champion at bantamweight and super-bantamweight.

Juan Manuel started at eight and found Ignacio “Nacho” Beristáin, the trainer he kept for life.

Beristáin’s method was unfashionable in a country that sells aggression. Mexican boxing is built on pressure and violence, and Beristáin taught his fighter to wait, read, and answer. A counter-puncher in the one national tradition that pays least for counter-punching.

Márquez also qualified as an accountant while fighting, which is the detail everybody repeats. It explains more about the state of his fortune than about his boxing.

His professional debut in May 1993 ended in a disqualification loss. He then spent a decade being avoided by anybody with options. The first world title arrived on February 1, 2003, when he stopped Manuel Medina in the seventh for the IBF featherweight belt. He added Derrick Gainer’s WBA title nine months later.

He was 30 years old, and almost nobody outside Mexico could have picked him out of a line-up.

May 8, 2004: Down Three Times in Round One

Then Manny Pacquiao knocked him down three times in the opening round.

He got up each time, adjusted, and outboxed Pacquiao for the remaining eleven. The verdict was a split draw, and the reason it was a draw is one of the strangest administrative facts in modern boxing.

Judge Burt Clements scored that first round 10-7. A three-knockdown round should have been 10-6. He told the San Diego Union-Tribune afterwards that he had not been aware a 10-6 was available, and that he would have used it had he known. His card came back 113-113. Scored correctly, Pacquiao wins the fight by a single point and there is no rivalry to speak of.

One judge’s misunderstanding of his own scoring range created eight years of boxing history.

Márquez left Las Vegas transformed from a respected technician into a must-see attraction. He built on it with a unanimous decision over Marco Antonio Barrera in March 2007 and an eleventh-round knockout of Joel Casamayor in September 2008.

March 15, 2008: The Split Decision

The rematch at super-featherweight was every bit as close. Pacquiao dropped him in the third. Márquez took most of the middle rounds. Two judges to one for Pacquiao, decided by a single point on the swing card.

Márquez left convinced he had now won twice and been given neither.

He moved up in weight and kept winning: a ninth-round stoppage of Juan Díaz in February 2009, another of Michael Katsidis in November 2010. In September 2009 he took a lucrative catchweight fight with Floyd Mayweather at 144 pounds, gave away far too much size, and lost wide.

That is the only bout of his career that looks like a pure business decision. He never pretended otherwise.

November 12, 2011: The Majority Decision

By the third meeting Pacquiao was the biggest attraction in the sport, and Márquez was a 38-year-old lightweight moving up to welterweight to face him.

He outthought him for twelve rounds and lost a majority decision that much of the press and most of the MGM Grand crowd disagreed with. Two of three official cards went to Pacquiao. Most unofficial ones did not.

Three fights. Thirty-six rounds. No defeat he accepted and no victory he was given.

December 8, 2012: One Right Hand

For the fourth fight he changed his preparation, working with conditioning coach Angel “Memo” Heredia, whose name had featured in the BALCO doping investigation. The association drew heavy and public suspicion.

He passed his tests. No anti-doping authority has ever made a finding against him. The scrutiny followed him regardless, and still does.

The fight was the best of the four by some distance. Márquez put Pacquiao down in the third. Pacquiao put Márquez down in the fifth and had him in serious trouble.

Then, with one second left in the sixth, Pacquiao stepped in and Márquez landed a straight right hand over the top. Pacquiao went face-first into the canvas and did not move for a long moment.

It did not settle the series, which still reads two wins, one draw and one loss in Pacquiao’s favour. It settled the argument about Márquez.

Afterwards: The Booth, and Gloves and Glory

He lost a split decision to Timothy Bradley on October 12, 2013, which turned out to be his last fight, and formally announced retirement in 2017 at 56-7-1 with 40 knockouts, a world champion in four weight divisions. He was elected to the International Boxing Hall of Fame with the class of 2020.

Since then he has worked as a Spanish-language boxing analyst, and in 2025 launched Marquez Promotions. Its “Gloves and Glory” cards started at the Bert Ogden Arena in Edinburg, Texas, with later editions in Monterrey.

The matchmaking policy is the part I find genuinely interesting. Márquez has said his promotion signs nobody as a favourite and matches prospects with similar records against each other rather than protecting an investment. That is close to the opposite of how the business normally works, and it is a promoter’s version of the same complaint he made for eight years as a fighter: put two people in who might both win, then let the result stand.

He never headlined the era’s biggest pay-per-views, and he sits well down our richest boxers ranking as a result. He also fought the era’s biggest star to a standstill four times, kept what he earned, and is one of the few men from that generation still in the sport and running his own company.