Since the draw with Manny Pacquiao in their first meeting, Marquez has compiled a record of 11-3, with a loss, of course, to Pacquiao, and defeats at the hands of two fighters (Floyd Mayweather and Chris John) who were undefeated.
* Marquez is the older fighter in this matchup, by a span of five years and four months. When he goes into the ring, he will be 38 years of age.
* Marquez has fought a total of 432 rounds in his professional career.
* The heaviest Marquez has ever been for a professional fight is 142 pounds, which he weighed when he fought Mayweather in September 2009. After that fight he was out of action for ten months, as he dropped to 133-1/2 for his WBO lightweight title rematch against Juan Diaz.
* Marquez will be moving up six pounds in weight (theoretically anyway) in a span of less than four months, as his last bout was at 138 pounds against Likar Ramos on July 16. For much of his career, Marquez has campaigned between 126 and 130 pounds.
* Marquez has won world titles in three different weight divisions ? featherweight, junior lightweight (or super featherweight, if you prefer) and lightweight. That?s a weight span of 126 to 135 pounds.
* Marquez is the last fighter to win on any judges? card against Pacquiao, but when he fought Mayweather, he was decisively beaten. Mayweather, in fact, beat him by scores of 120-107, 119-108 and 118-109,
* This will be the 16th world title fight in which Marquez has engaged.
* Marquez first fought for a world championship back in September 1999, when he lost to Freddie Norwood. So it has been over a dozen years since he first started to engage in world title competition. Despite the fact that he is more than five years older than Pacquiao, his first title shot came almost two years after Pacquiao?s first shot.
* Marquez is hardly a stranger to Las Vegas, having fought there 19 times in his career. In those bouts he is 15-3-1 with ten KO?s.
* Marquez was a win-loss percentage of 91.4% in his pro career. He has scored 73.6% of his wins inside the distance.
