Halle Open
At the Halle Open he reached the semifinals by a stunning defeat over 10-time tournament champion, 5th seed, and childhood idol Roger Federer in the second round to secure his fourth Top-10 victory (4-15) and one of the biggest wins of his career. He then defeated qualifier Marcos Giron in the quarterfinals but lost to the eventual champion Ugo Humbert. In the same tournament in doubles he reached the final partnering Hubert Hurkacz but lost to 3rd seeded German Kevin Krawietz and Romanian Horia Tecău.