Carlos Alcaraz of Spain became the youngest tennis player ever to reach the World No. 1 spot after beating Caspur Ruud of Norway at the United States Open on Sept. 11.
Alcaraz, 19, won against Ruud in the U.S. Open final 6-4, 2-6, 7-6, 6-3 in New York — earning him his first Grand Slam title.
Alcaraz, from the village of El Palmar on Spain's Atlantic Coast, is the only men's teenager to top the Pepperstone Association of Tennis Professionals (ATP) Rankings.
"This is something that I dreamed of since I was a kid — to be No. 1 in the world, to be champion," Alcaraz said, as quoted by NBC News.
Alcaraz is the fourth man from Spain to achieve the feat, joining his coach Juan Carlos Ferrero, Carlos Moya, and Rafael Nadal.