The 2018 Juan Martín del Potro tennis season officially commenced on 10 January 2018 with the start of the Delray Beach Open.

This season saw Del Potro slightly improve on his previous results as well as his playing style.

There, he performed notably well considering the doubts surrounding his physical condition, and the fact that clay is not the best surface for his style of play.

[3] This table chronicles all the matches of Juan Martín del Potro in 2018, including walkovers (W/O) which the ATP does not count as wins.

The following list is ordered by number of wins: Figures in United States dollars (USD) unless noted.