However, the longer the match went on, the better Sinner got into the rallies and took control of the match. As a result, Medvedev felt the strain of his exhausting matches on the way to the final. By the end of the tournament, the Russian had played four five-set matches and spent an incredible 24 hours and 17 minutes on court – a Grand Slam record.
Sinner took a break in each of sets 3, 4 and 5 and made himself Grand Slam champion with his 50th winner in total.

Jannik Sinner, who only started intensive performance training at the age of nine and relatively late for a tennis pro, played on the ATP Challenger Tour for the first time in August 2018 thanks to a wildcard in Como, but lost his opening match straight away. However, his first title followed just a few months later at only his third tournament at Challenger level. In February 2019, Sinner – ranked number 546 in the ATP world rankings – beat two top 200 players, Salvatore Caruso and Gianluigi Quinzi, on his way to the title in Bergamo. As a result, he moved up over 200 places in the world rankings and achieved a new high ranking of 324th.

His first participation in an ATP Tour tournament followed in Budapest in April 2019 – and his first victory in a main draw against the Hungarian Maté Valkusz. In Lexington (USA) and Ortisei in Val Gardena (ITA), Sinner won the Challenger titles no. 2 and 3 in 2019 and ended the year ranked no. 553 on the ATP Tour.