The final began with both players dominating on serve in a high-quality contest. Zverev edged the first set 7-6(7) after a tense tie-break that lasted more than an hour.
However, Sinner quickly regained control. The Italian held his nerve in an equally competitive second set before cruising through the tie-break 7-2 to level the match and seize the momentum.
The turning point came in the third set when Sinner applied relentless pressure on Zverev's serve. The German struggled with his first serve and eventually surrendered a crucial break, allowing Sinner to take a 5-3 lead before comfortably serving out the set.
Zverev's frustration boiled over as he smashed his racket after losing the set.
The fourth set remained competitive, with Zverev making one final push to force a decider. But Sinner produced one of the best points of the match, combining brilliant defence with fearless attacking play before breaking serve in the seventh game with a powerful forehand winner.
Serving for the championship at 5-4, Sinner stayed calm under pressure. He earned championship point with a delicate backhand winner before sealing the title with a blistering forehand down the line, collapsing onto the grass in celebration.
The win improved Sinner's head-to-head record against Zverev to 10 victories in 14 meetings, including nine consecutive wins over the German.
By successfully defending his Wimbledon title, Sinner became only the 10th man in the Open Era to retain the prestigious All England Club championship. The triumph further strengthened his grip on the World No. 1 ranking and cemented his position as the dominant force in men's tennis, having now won five Grand Slam titles in just seven major finals.