Cincinnati Masters 1000, other first-round matches (Lindner Family Tennis Center, hard, USD 6,795,555, most recent results first):
- Brandon Nakashima beat Taylor Fritz (11): 6-4, 4-6, 7-6 (4)
- Yoshihito Nishioka (Q) beat Miomir Kecmanovic: 6-4, 7-5
- Lorenzo Musetti (14) beat Nicolas Jarry: 4-6, 7-6 (5), 7-6 (4)
- Ben Shelton (12) beat Reilly Opelka (WC): 7-6 (3), 7-6 (3)
- Jordan Thompson beat Ugo Humbert (13): 3-6, 6-3, 7-6 (4)
- Alex Michelsen (Q) beat Tallon Griekspoor: 6-1, 5-7, 6-2
- Jiri Lehecka beat Mariano Navone: 7-6 (3), 6-3
- Frances Tiafoe beat Alejandro Davidovich Fokina: 6-3, 7-6 (6)
- Luciano Darderi beat Alejandro Tabilo: 6-3, 7-6 (5)
- Sebastian Baez beat Marcos Giron: 6-4, 5-7, 7-6 (6)
- Zhizhen Zhang beat Giovanni Mpetshi Perricard: 6-3, 7-6 (4)
- Karen Khachanov beat Francisco Cerundolo: 6-0, 6-3
- Flavio Cobolli beat Tommy Paul (10): 6-2, 4-6, 7-5
- Gael Monfils vs. Alexei Popyrin
- Tomas Martin Etcheverry vs. Matteo Arnaldi
- Pablo Carreno Busta vs. Sebastian Korda
- Holger Rune vs. Matteo Berrettini
- Jack Draper vs. Jaume Munar
- Max Purcell vs. Tomas Machac
- Adrian Mannarino vs. Nuno Borges
- Jan-Lennard Struff vs. Stefanos Tsitsipas
- Felix Auger-Aliassime vs. Aleksandar Kovacevic
- Fabian Marozsan vs. Corentin Moutet
