Borna Gojo (8), Croatia, def. Nikoloz Basilashvili (2), Georgia, 6-3, 7-6 (5).

Lorenzo Sonego (6), Italy, def. Inaki Montes-de la Torre, Spain, 7-5, 6-3.

Toby Samuel (5), Britain, def. Adrian Mannarino (1), France, 3-6, 7-5, 6-1.

Aleksandr Shevchenko (7), Russia, def. Jacob Fearnley (4), Britain, 6-2, 6-4.

Juan Manuel Cerundolo, Argentina, def. Elias Ymer, Sweden, 6-1, 7-6 (4).

Luke Johnson, Britain, and Sander Arends, Netherlands, def. Evan King, United States, and N. Sriram Balaji, India, 3-6, 6-3, 10-8.

Adam Pavlasek and Patrik Rikl, Czechia, def. Jakob Schnaitter and Mark Wallner (3), Germany, 6-4, 6-3.