Carlos Alcaraz has become the youngest No. 1 in the Pepperstone ATP Rankings after winning his first Grand Slam trophy at the US Open.
The American has soared to career-high No. [Rafael Nadal](https://www.atptour.com/en/players/rafael-nadal/n409/overview) en route. The 26-year-old has jumped 13 spots after he reached his first Grand Slam semi-final at Flushing Meadows. [US Open](https://www.atptour.com/en/tournaments/us-open/560/overview). 1 At 19](/en/news/carlos-alcaraz-world-no-1-longform-feature-2022) [Read ](https://www.atptour.com/en/news/alcaraz-ruud-us-open-2022-final) [US Open](https://www.atptour.com/en/tournaments/us-open/560/overview) Final Report. No. The 23-year-old, who had never been beyond the third round in four previous appearances in New York, rallied past seeds [Tommy Paul](https://www.atptour.com/en/players/tommy-paul/pl56/overview), [Matteo Berrettini](https://www.atptour.com/en/players/matteo-berrettini/bk40/overview) and [Karen Khachanov](https://www.atptour.com/en/players/karen-khachanov/ke29/overview) in a standout run. [US Open](https://www.atptour.com/en/tournaments/us-open/560/overview) on Sunday, when [Carlos Alcaraz](https://www.atptour.com/en/players/carlos-alcaraz/a0e2/overview) defeated [Casper Ruud](https://www.atptour.com/en/players/casper-ruud/rh16/overview) to earn his first Grand Slam title and secure the No. Alcaraz eventually stopped Tiafoe in a five-set thriller under the lights on [Arthur Ashe](https://www.atptour.com/en/players/arthur-ashe/a063/overview) stadium. [US Open](https://www.atptour.com/en/tournaments/us-open/560/overview), becoming the youngest World No. Beaten finalist Ruud has also made a big jump following the run to his second major final, while [Frances Tiafoe](https://www.atptour.com/en/players/frances-tiafoe/td51/overview) has cracked the Top 20 after reaching the semi-finals.