The British tennis player beat home favourite Louisa Chirico in the round of 32 by a score of 6-4, 6-2.
Halep played against Spanish player Cristina Bucsa in the round of 32 of the competition on Monday and recorded a comfortable 6-3, 7-5 victory.
Nick Kyrgios recorded a 6-3, 6-2 win over Marcos Giron on Tuesday in a match where he hit 12 aces.
Ilya Ivashka, ranked 53rd, will play world number 57 Sebastian Korda on Tuesday in the opening round of the 2022 ATP Citi Open.
Tuesday's second round of the 2022 ATP Citi Open will feature a matchup between Croatia's Borna Gojo, who is rated 198th in the world, and world number 26 Botic van de Zandschulp.
Tuesday's second round of the 2022 ATP Citi Open pits world number 8 Andrey Rublev against world number 81 Jack Draper of Great Britain.
On Tuesday, the first round of the 2022 ATP Citi Open will feature Jenson Brooksby, the 43rd-ranked player in the world, facing Yoshihito Nishioka of Japan.
On Tuesday, the opening match of the 2022 ATP Citi Open will feature American Christopher Eubanks and Frenchman Benjamin Bonzi.
In the opening round of the 2022 WTA Citi Open on Tuesday, world number 69 Ajla Tomljanovic of Australia will play against world number 53 Sloane Stephens of the United States.
The Aussie defeated the likes of Filip Krajinovic and Stefanos Tsitsipas en route to his best ever result at Wimbledon.