The loss prevented Alcaraz from securing a third consecutive Wimbledon title.
Alcaraz admitted he struggled against Sinner's consistently high level of play, saying he “didn't know what to do” at times.
He identified Sinner's strong second serves as a “big key” in the Italian's victory: “He was returning really well, then he was in a position to attack with the second ball.”
Sinner's win marked his first title at the All England Club and his first Grand Slam on a non-hard-court surface.