The Nitto ATP Finals will feature three athletes: Daniil Medvedev, Carlos Alcaraz, and Novak Djokovic.
With competitions in Beijing and Astana this week, who will get a step closer to securing a berth in Turin?
Between fifth-placed Andrey Rublev and ninth-placed Taylor Fritz, there are only 630 points.
There will be several opportunities for maneuvering this week at the China Open, an ATP 500 event, where 12 of the Top 15 competitors in the Live Race will be competing.
With his performance in Chengdu, where he won his second championship of the year (after Hamburg), the German climbed from eighth to seventh place in the Live Race.
As of right moment, the 26-year-old holds a 215-point advantage over Holger Rune for eighth and last qualifying place.
Due to an ankle injury sustained at Roland Garros, Zverev was unable to compete in the 2017 Nitto ATP Finals.
The two-time season-finale champion is vying for a sixth consecutive spot at the year-end championships.