In the second fight, Mayweather outpointed Artur Gevorgyan of Armenia 16–3.
In 1998, within two years of entering professional boxing, Mayweather decisively won his first world title (the WBC super featherweight (130 lb) championship) with an eighth-round technical knockout of The Ring world #1-ranked super featherweight Genaro Hernández after his opponent's cornerman stopped the fight. With Mayweather's win he became lineal champion of the division; Genaro Hernández had previously beaten Azumah Nelson, whose dominance of the super-featherweight division had prompted boxing publications to give him the vacant lineal championship. We believe that he epitomizes that style of fighting".
It was Hernández' first defeat in that weight class; he said after the fight, "He defeated me, he is quick, smart and I always knew he had the speed. Nelson won his lineal status during the 1990s; therefore, The Ring's vacant title was awarded neither to him, Hernández, nor Mayweather (although Mayweather was The Ring's #1-ranked super featherweight). In 1999, Mayweather continued his domination of the super featherweight division by defending his title three more times.
Sports, ranked Mayweather as the best pound for pound boxer in the world twice in a span of ten years.
He is often referred to as the best defensive boxer in history, as well as being the most accurate puncher since the existence of Compu Box, having the highest plus–minus ratio in recorded boxing history.
Early in his pro career, Mayweather received praise from all corners of the boxing world and was touted as a pugilistic prodigy.
the ESPN commentator remarked, "Emmanuel Steward was quoted as saying there have been very few who have been more talented than this kid.
"I don't remember him ever taking me anywhere or doing anything that a father would do with a son, going to the park or to the movies or to get ice cream," he says. "If it wasn't for me he wouldn't be where he is today," he maintains. "It wasn't like I left him with strangers." In the absence of his father, boxing became an outlet for Mayweather.
"I always thought that he liked his daughter (Floyd's older sister) better than he liked me because she never got whippings and I got whippings all the time." Mayweather's father contends that Floyd is not telling the truth about their early relationship. As the elder Mayweather served his time, his son put all of his energy into boxing and dropped out of high school.
Mayweather has a record of 26 consecutive wins in world title fights (10 by KO), 23 wins (9 KOs) in lineal title fights, 24 wins (7 KOs) against former or current world titlists, 12 wins (3 KOs) against former or current lineal champions, and 2 wins (1 KO) against International Boxing Hall of Fame inductees.