Top 7 youngest grand slam champions of all-time (Men)

Carlos Alcaraz defeated Casper Ruud in four sets 6-4,2-6,7-6(1),6-3 to win the 2022 US Open and became the youngest major winner in the last 15 years.

#7 Carlos Alcaraz - 19 years, 129 days

Pete Sampras defeated fellow American Andre Agassi in the final in straight sets 6–4,6–3,6–2 to win the men's singles tennis title at the 1990 US Open.

#6 Pete Sampras - 19 years, 29 days

Playing his first French Open at 19, Rafael Nadal stunned the world by winning the title on his maiden appearance and the rest is history. He defeated Mariano Puerta in four sets 6–7 (6–8), 6–3, 6–1, 7–5 to win his first of the 14 Roland Garros titles in 2004.

#5 Rafael Nadal - 19 years, 3 days

Bjorn Borg won the 1974 French Open defeating Manuel Orantes in the final in five sets 2-6,6-7(4),6-0,6-1,6-1 to win his first of 11 major titles.

#4 Bjorn Borg - 18 years, 10 days

Mats Wilander won his maiden major title just a year after turning pro in 1981. In the 1982 French Open final, Wilander defeated Argentine Guillermo Vilas in four sets 1–6,7–6(6),6–0,6–4 to win his maiden major title at the age of 17.

#3 Mats Wilaner - 17 years, 293 days

Boris Becker’s love affair with Wimbledon started back in 1985 when he became the youngest champion in Wimbledon history after beating American Kevin Curren in four sets 6–3,6–7(7),7–6(3),6–4 in the final.

#2 Boris Becker - 17 years, 228 days

Michael Chang stunned Stefan Edberg and the world by winning the 1989 French Open final in five sets 6–1,3–6,4–6,6–4,6–2 to win his first and only grand slam title. 

#1 Michael Chang - 17 years, 110 days