ATP - Cincinnati 1R start

First round commenced in Cincinnati.

2024 Cincinnati Open, an ATP Masters 1000 tournament, on Hard Outdoor, Cincinnati, Ohio, USA, 13-19 August 2024

2023 champion (not defending):

Novak Djokovic (2) who defeated Carlos Alcaraz (1) 5-7 7-6(7) 7-6(4)

First round results:

- Karen Khachanov defeated Francisco Cerundolo 6-0 6-3

- Flavio Cobolli defeated Tommy Paul (10) 6-2 4-6 7-5