It was held on outdoor hard courts at the USTA Billie Jean King National Tennis Center in New York City.

Novak Djokovic won the men's singles title, defeating del Potro in the final, 6–3, 7–6(7–4), 6–3.

There are also singles and doubles events for both boys and girls (players under 18), which are part of the Grade A category of tournaments.

Additionally, there are singles and doubles wheelchair tennis events for men, women and quads.

The tournament was played on hard courts and takes place on a series of 17 courts with DecoTurf surface, including the three existing main showcourts – Arthur Ashe Stadium, the newly renovated Louis Armstrong Stadium, and the new Grandstand.

[2] The issue started during the second set when chair umpire Carlos Ramos cited Serena for a signal that was sent from her coach.

As both players were concluding the changeover and getting set, Ramos issued Serena her third code violation, this time for verbal abuse.

[4] At this point, US Open referee, Brian Earley, and WTA supervisor, Donna Kelso, were summoned to the court due to the dispute.

Nevertheless, she was deemed a special case and seeded 17th by the organizers because she missed a significant portion of the last 12-month period due to pregnancy and maternity.

The qualifying competitions took place at USTA Billie Jean King National Tennis Center on August 21–24, 2018.

The following players were accepted directly into the main tournament, but withdrew with injuries, suspensions or for personal reasons.