John Isner was the defending champion and successfully defended his title, defeating Ryan Harrison in a rematch of the 2017 final, 5–7, 6–3, 6–4.
Seeds The top four seeds receive a bye into the second round.
Draw
Finals
Top half
Bottom half
Qualifying
Seeds
Qualifiers
Lucky loser Hubert Hurkacz
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
References Main draw Qualifying draw