He defeated Zverev again at the China Open en route to finishing runner-up to No. 5 Dominic Thiem.[78] He then made two semifinals at the Shanghai Masters and the Swiss Indoors, losing to other top five players again in No. 4 Daniil Medvedev and No. 3 Roger Federer.[79][80] At the end of the season, Tsitsipas qualified for the ATP Finals for the first time, where he was placed in a round-robin group with Nadal, Zverev, and Medvedev.